A-GenTech

GeneralTechnicalFluidConnectors

The Fitting Authority

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A2FluidConnectors

Parker Hannifin CorporationTube Fittings DivisionColumbus, Ohio

4300 Catalog General Technical

Systematic Design ............................. A3

TFD Parts Nomenclature ................... A4

Standard Nomenclature ................................ A4

Non-Compressed Standard Nomenclature... A4

Compressed Standard Nomenclature .......... A6

Pipe Fittings Nomenclature ........................... A7

Non-Standard Nomenclature ........................ A7

Selection of Fitting Type .................... A9Fitting Selection Summary ............................ A9

Connectors for World-Class Products ........ A11

ISO Connector Standards ........................... A12

Tube End Connections ............................... A13

Port End Connections ................................. A16

Port Details ................................................. A18

NPTF and BSPT Dimensions ..................... A23

Tube to Port Pairing .................................... A24

Selection of Materials ...................... A25Fluid Compatability ..................................... A25

Protective Coatings on Steel ....................... A25

Choosing the Tube Material and Type........ A25

Fluid Compatibility Chart ............................. A26

Tube and Fitting Material Compatibility ...... A27

Corrosion of Base Metals in Contact .......... A28

O-Ring Material Selection ........................... A29

Selection of Tubing ........................... A30Determining Tube Sizefor Hydraulic Systems ................................. A30

Recommended Flow Diameter Chart ......... A32

Recommended DesignPressure for Tubes Chart ............................ A33

Routing and Assembly .................... A35

Plumbing and Assembly Hints .................... A35

Assembly Height & Minimum Clearances... A36

Bleeding Hydraulic Systems ....................... A36

Fitting Envelope Dimensions ...................... A37

Tube Line Fabrication Guidefor Leak Free Systems ................................ A38

Routing of Lines ...................................... A38

Tube Clamps ........................................... A39

Tools for Tube Line Fabrication .............. A39

Assembling Port Studs (Ends) .................... A40

SAE, ISO and JIS AdjustableEnd Assembly ......................................... A41

SAE, ISO and JIS Non-AdjustableEnd Assembly ......................................... A42

Pipe Thread Ports ................................... A42

Suggested Applications for PipeThread Fittings and Adapters .............. A43

Type of Sealant/Lubricant ................... A43

Assembly ............................................. A43

SAE Code 61/62 4-Bolt Split Flange ....... A44

Assembly ............................................. A44

ISO 6149 Port Assembly ......................... A45

JIS Parallel Pipe Thread O-Ring Port(JIS B2351, Type “O”) Assembly ............ A45

ISO 1179 (BSPP, Flat Face) PortAssembly ................................................. A45

ISO 9974 (Metric Parallel Thread, FlatFace) Port Assembly ............................... A45

ISO 1179 BSPP andISO 9974 Metric Port Assembly .............. A46

Reference Material ........................... A47Tube Fitting Pressure Drops ....................... A47

Product Identification Markings ................... A49

Conformance Standardsfor TFD Products ......................................... A50

Applicable Standards for TFD Products ..... A51

Thread Designations and Standardsfor Threads Used in Fluid Connectors ........ A52

Document Sources forConnector Specifications ............................ A53

Table of Contents


A3FluidConnectors


ASystematic DesignBasic system design requires determining the following infor-mation:1. Type of fluid used in the system2. Corrosive nature of service environment3. Operating temperature range4. Type of line: pressure, return or suction5. Maximum operating pressure, for pressure and return

lines6. Maximum flow rate7. Severity of service: normal, severe, or hazardous8. Routing or space restrictions

After gathering the information above, the proper tubing mate-rial can be determined by using Selection of Materials informa-tion on pages A25 through A28. The tube and fitting size can bedetermined by using Selection of Tubing information on pagesA30 through A34. The fitting type can be determined by usingFitting Selection Summary on pages A9 through A24 and theappropriate product section. Finally, Routing and Assemblyinformation can be found on pages A35 through A45 and theappropriate product section. Information on conformance stan-dards, pressure drops, and common thread types can be foundon pages A46 through A52 and the appropriate product section.

Table A1 — System Parameter Matrix

4300 Catalog

Systematic Design

System parameter ...which can be found beginningknown... ...is used to determine... in Section... on page...

Type of fluid used in the Fluid compatibility of: Fluid Compatibility A25

system Tube and fitting material Tube and Fitting Material Compatibility A27Seal material O-ring Material Selection A29Plating type Protective Coatings on Steel A25

Corrosive nature of service Seal material O-ring Material Selection A29environment Tube and fitting material Tube and Fitting Material Compatibility A27

Galvanic reaction between tube Corrosion of Base Metals in Contact A28and fitting materials

Operating temperature range Tube and fitting material Tube and Fitting Material Compatibility A27Seal material O-ring Material Selection A29

Type of line: pressure, Fitting type Fitting Selection Summary A9

return or suction Tube size Determining Tube Size for HydraulicSystem A30

Tube and fitting material Tube and Fitting Material Compatibility A27

Tube wall thickness Recommended Design Pressure for A33Tubes

Maximum operating pressure, Fitting type Fitting Selection Summary A9for pressure and return lines Tube size Determining Tube Size for Hydraulic

System A30

Tube and fitting material Tube and Fitting Material Compatibility A27Tube wall thickness Recommended Design Pressure for

Tubes A33

Maximum flow rate Tube size Determining Tube Size for HydraulicSystem A30

Tube wall thickness Recommended Design Pressure forTubes A33

Pressure drop through fittings Tube Fitting Pressure Drops A47

Severity of service: normal, Fitting type Fitting Selection Summary A9severe, or hazardous Clamping of tubes; clamp spacing Routing and Assembly A35

Routing or space restrictions Fitting and tube envelope Fitting Envelope Dimensions A37dimensions

Fitting type Fitting Selection Summary A9Clamping of tubes Routing and Assembly A35

A4FluidConnectors



Standard NomenclatureParts shown in this catalog are identified using three (3)nomenclature systems:1. Standard Nomenclature: Has two versions, non-com-

pressed and compressed.

A. Non-compressed nomenclature (using dashes andspaces) is used for all inch base parts, except pipefittings.

B. Compressed nomenclature (without dashes & spaces)is used for all metric base parts, except pipe fittings.

2. Pipe fitting nomenclature is used for all pipe fittings. Non-compressed and compressed part nubmers are used forinch base and metric base pipe fittings, respectively.

3. Non-standard nomenclature is used for all parts thatcannot be identified by the standard nomenclature.

Our normal or non-compressed standard nomenclature isdesigned to identify following basic styles or configurations andcomponents for Triple-Lok, Ferulok, Seal-Lok, Intrulok and JISfittings with inch hex and forging flats.

Style Description

Connectors Tube to port (NPTF, SAE, BSP ormetric)

Swivels Tube to female swivel

Unions Tube to tube

Bulkhead (unions) Tube to bulkhead tube

Reducers Large female swivel to small tube

A compressed standard nomenclature is used for all fittingswith metric hex or forging flats, and sleeves and braze connec-tors for metric tubing.

Pipe fittings were identified by a different system prior to theintroduction of standard nomenclature for tube fittings.

All other fittings (except pipe fittings), components and conver-sion adapters are identified by our non-standard nomenclaturewhich is more flexible.

Non-Compressed StandardNomenclatureThe nomenclature consists of three groups of alphanumericcharacters (codes), identifying the fitting as follows:

Size Shape, Style and MaterialCode Type Code Code

6 - 4 C 5 L S

Size Code:

The first group of numeric characters, one to four numbersseparated by dashes, indicates size of the fitting or the compo-nent. See size code section on pages A5 and A6 for details.

Shape, Style And Type Code:

The second group of alphanumeric characters, separated by aspace from the first group (size code), indicates, where appli-cable, shape (straight, elbow, tee, etc.), style (connector,union, swivel, etc.) and type (Seal-Lok, Triple-Lok, Ferulok,etc.) of the fitting.

Shape or style codes are given in the chart on page A5 as thefirst part of the second group of alphanumeric characters (2A).

For the connectors identified with the asterisk in column 2A,modifiers from column 2B are added to indicate type of threadand sealing method. Letter “O” is added after the fitting sub-styles 4, 5, 8, and 87 when the fitting is assembled with the"O"-ring.

Example: C5O – SAE straight thread elbow assembledwith "O"-ring.

Letters “ED” are added after sub-styles 42 and 82 to indicatestraight thread connectors using EOlastic seal ring, codenamed “ED”.

Example: F82ED – Metric parallel thread connector with“ED” seal.

Number “6” is added to C, V, R, & S styles in 2A to indicateswivel unions.

A combination of connector and swivel modifiers is used toidentify swivel connectors as shown in column 2B.

Fitting type is indicated by one of the codes listed in column 2Con page A5. For Seal-Lok, the letter "O" is added after "L" forfitting with O-ring on Seal-Lok end.

Material Code:

The third group consisting of one or more alpha characters,separated from the second group by a dash, indicates fittingmaterial, as shown on page A5.

For connectors, the tube end is called out first. For all otherstyles or configurations, larger of the male tube ends or maleend is called out first.

For tees and crosses, the order of call out is left, right, top (forcross only) and bottom with largest male tube end on the runcalled out first.

Certain pipe sizes are considered standard, or paired, withgiven tube connections and hence are not shown in the sizecode. (Example: 1/8" pipe is standard with 1/4" tube; hence,4 FTX-S is used in place of 4-2 FTX-S.) These paired tube andpipe sizes are shown in the size code table on page A5.

TFD Parts Nomenclature

Tube Size(3/8" O.D.)

SAE StraightThread Port End

Steel withZinc Plating

Seal-LokTube End

Male ElbowConnector

Port EndSize(-4 SAE)

tee cross


A5FluidConnectors


A

-2 1/8 -2 5/16-24 -2 1/8-3 3/16 -3 3/8-24 -2 1/8-4 1/4 -4 7/16-20 -2 1/8-5 5/16 -5 1/2-20 -2 1/8-6 3/8 -6 9/16-18 -4 1/4-8 1/2 -8 3/4-16 -6 3/8

-10 5/8 -10 7/8-14 -8 1/2-12 3/4 -12 1 1/16-12 -12 3/4-14 7/8 -14 1 3/16-12 -12 3/4-16 1 -16 1 5/16-12 -16 1-20 1 1/4 -20 1 5/8-12 -20 1 1/4-24 1 1/2 -24 1 7/8-12 -24 1 1/2-32 2 -32 2 1/2-12 -32 2

SAE NPTFDash Tube Dash Straight Dash PipeSize O.D. Size Thread Size Thread

2A – Shape or Style

Straights:B NutF* Male ConnectorFF* Long Connector or Pipe NippleFFF* Extra Long Connector or

Long Pipe NippleFN CapG* Female ConnectorH UnionHH Long UnionHPN* Plug, Straight Thread, Hollow

HexLH Large Hex UnionPN* Plug, Straight Thread, Hex

HeadT Sleeve or FerruleTP Sleeve, ParflangeTR Tube ReducerT22 MountieW Bulkhead UnionWF Bulkhead Male ConnectorWG Bulkhead Female ConnectorWLN Bulkhead Locknut for

Triple-lok, Ferulok andIntru-Lok

WLNL Bulkhead Locknut for Seal-Lok

90° ElbowsC* Male Elbow ConnectorCC* Long Male Elbow ConnectorCCC* Extra Long Male Elbow

ConnectorD Female Elbow ConnectorE Union ElbowWE Bulkhead Union Elbow

45° ElbowsN Union ElbowV* Male Elbow ConnectorWN Bulkhead Union Elbow

TeesJ Union TeeM Female Run Tee ConnectorO Female Branch Tee ConnectorR* Male Run Tee ConnectorS* Male Branch Tee ConnectorWJ Bulkhead Branch TeeWJJ Bulkhead Run Tee

CrossK Union Cross

2B – Sub-Style Modifiers(Connectors, Swivels and Plugs)

Connectorsa

3 BSPT Port End4 BSPP Port End with O-Ring

and Retaining Ring5 SAE Straight Thread Port End8 Metric Parallel Thread with

O-Ring and Retaining Ring9 SAE Straight Thread with

Metal Seal (Male End Only)42 BSPP Port End with “Eolastic”

Seal Ring “ED”47 JIS B2351 O-Ring Port – BSPP

Threads82 Metric Parallel Thread Port End

with “Eolastic” Seal Ring “ED”87 Male Straight Thread Per

ISO 6149J4 Banjo connection with soft (KDS)

seal for BSPP portJ8 Banjo connection with soft (KDS)

seal for METRIC portSwivel Unionsb

6 Female SwivelSwivel Connectorsc

63 Swivel Connector with BSPTPort End

64 Swivel Connector with BSPPPort End

642 Swivel Connector with BSPPPort End with "ED" Seal Ring

65 Swivel Connector with SAEStraight Thread Port End

68 Swivel Connector with MetricParallel Thread Port End

682 Swivel Connector with MetricPort End with "ED" Seal Ring

687 Swivel Connector with ISO6149 Port End

Straight Thread Plugsd

(Modifier for P)4, 5, 8, 9 and 87 as in connectorsabove.Notes:a. Modifiers for connectors as noted

with asterisk in 2A. Series L (Light)and S (Heavy), for male connectorsis determined by type of fitting:

S – for Seal-LokL – for all other types

b. Modifier for C, V, R, S and H, E andJ in 2A

c. Modifiers for F only in 2Ad. Modifiers for P only in PN and HPN

in 2A

or

or

6 - 4 C 5 L - S1 2 3

Tube End Port End Port End

Paired Tube & Port End Size Code Tables

1 – Size Code

Size code calls out the tube and port connectionsizes. The size is called out by dash numbers whichrepresent the size in sixteenths of an inch. Thus,1/4" tube connection or pipe thread is called out as“-4” because 1/4" = 4/16.

Fittings with all ends of the the same size are calledout with only one number for the size code regard-less of the number of ends in the fitting.

Example: A Seal-Lok union tee with -12 sizeends is called out as 12 JL-S instead of12-12-12 JL-S.

The SAE straight thread connection dash numbers areas listed in the size code table above. Each thread sizeis paired with a certain tube size via the correspondingdash size. For paired sizes, only one number is used toindicate size.

Example: 7/16-20 SAE straight thread is pairedto 1/4" OD or -4 tube.

Hence, a straight thread connector with -4, 37° flareend and 7/16-20 port end is called out as 4 F5X and not4-4 F5X. Thus, straight and elbow connectors withpaired tube and port connections require only the tubedash size to indicate size.

Fittings other than same size or paired tube and portconnections require more than one (one for each end)dash numbers in the size code.

Note: Shading indicates the sample Part Number shownat the top of the page.

2C

2C – Fitting Type

I Intru-LokK4 60° Cone BSPPL Seal-LokP4 JIS, 60° ConeT4 JIS, 30° FlareU FerulokX Triple-Lok

3 – Material Code

B BrassCUNI Cupro-Nickel, (ex. CUNI 70/30)D Dural (Aluminum), Anodized or

Alodined

M MonelS Steel with Zinc PlatingSS Stainless Steel 316 or 316L,

Passivated

2B

2A


A6FluidConnectors



Assembled Fittings

With Triple-Lok, Ferulok and Intru-Lok, "B" after the shape orstyle symbol indicates fitting assembled with nut, sleeve orferrule and O-ring (where applicable).

Example: 4 C5BX indicates size 4 Straight thread elbowwith nut, sleeve and O-ring

4 C5BU indicates the same for Ferulok

4 CBI2 indicates Intru-Lok assembled withferrule and nut (I2 indicates captive sleeve innut)

Metric Seal-Lok is identified with compressed nomenclature.

4 C5L-S: Male straight thread 90° elbow— 1/4 tube to 7/16-20 straightthreads. The material is steel.

4 C5OLO-S: Same as above but in-cludes O-rings on both the tubeand port ends.

4 CL-S: Male 90° elbow 1/4 tube to 1/8male pipe thread.

4 CLO-S: Same as above but includesO-ring on the tube end.

Using Non-CompressedStandard Nomenclature (Examples)

4 C5L-S

4 C5OLO-S

4 CLO-S

4 CL-S

4 C6LO-S

Compressed Standard NomenclatureCompressed nomenclature eliminates dashes and spacesfrom the part nomenclature for ease of entry except for dash(s)in size code.

In North America, the compressed nomenclature is usedonly for parts with metric hex or wrench pads (forging) andsleeves and braze or weld connectors for metric tubing.

Letter “M” is placed in front of the fitting type code to indicatemetric hex or forging wrench pads.

Example: 8F87MLS — size 8 Seal-Lok with ISO 6149-2port end made from metric hex bar.

For parts without the fitting type code, such as pipe fittings andadapters, the letter “M” is placed at the end before the materialsymbol.

Example: 1/4 X 1/8 FF33MS — A pipe nipple with BSPTends.

For sleeves and braze or weld connectors for metric tubing, thesize code is placed after the material symbol.

Example: TLS6 — Seal-Lok braze sleeve for 6mm tub-ing. MMLHB3S10 — Seal-Lok braze connec-tor for 10mm tubing made from metric hex.

Europe uses compressed nomenclature for all fittings.They continue to use US size code (based on dash sizes) forTriple-Lok and Seal-Lok fitting bodies and sleeves and brazeor weld connectors for inch tubing.

Example: 8C5OMXS — size 8 Triple-Lok elbow with SAEport end with O-Ring and made from a forgingwith metric wrench pads. 8TXS — Triple-Loksleeve for 1/2" O.D. tubing.

BSP threads are designated with dash numbers same asNPTF pipe threads.

Metric threads are designated by thread size without pitchbecause only the following size/pitch combinations are used inhydraulic port connections.

All other codes and rules of the non-compressed standardnomenclature apply here as well.

4 C6L-S

4 C6L-S: Swivel nut elbow.

4 C6LO-S: Same as above with O-ring.

Table A2 — Metric Thread Sizes and Codes


Thread Size Code Thread Size Code

M8X1 M8 M27X2 M27

M10X1 M10 M30X2 M30

M12X1.5 M12 M33X2 M33

M14X1.5 M14 M36X2 M36

M16X1.5 M16 M38X2 M38

M18X1.5 M18 M42X2 M42

M20X1.5 M20 M45X2 M45

M22X1.5 M22 M48X2 M48

M24X1.5 M24 M60X2 M60

M26X1.5 M26


A7FluidConnectors


APipe Fittings NomenclaturePipe fittings are identified by calling out symbols (code letters)for the ends in left, right, up and down sequence except instraights and elbows where male end is called out first. Thecode letters are as follows:

C Male pipe on elbow (leg)

D Female pipe on elbow

F Male pipe on straight

G Female pipe on straight

HHP Hollow hex pipe plug

HP Hex head pipe plug

K Used in front of end codes for cross

M Female pipe on run

O Female pipe on branch

PTR Pipe thread Reducer

R Male pipe on run

S Male pipe on branch

Pipe Fittings Shape & Style Codes

Non-Standard NomenclatureNon-standard nomenclature is to be used only wherethe part cannot be identified using our standard nomen-clature.

Part numbers for non-standard fittings are constructed fromcodes or symbols that identify the size, shape, end machiningtype and material of the fitting. It consists of three groups ofalphanumeric characters similar to the standard nomenclatureas shown below:

Size Shape and End MaterialCode Machining Code Code

8 - 4 - 6 L F J A S

Branch EndSize (-6 SAEStraightThread)

Material(Steel)

Branch End(AdjustableStraightThread End)

Shape (Tee)

Second Run End(Male Pipe)

First Run End(Seal-Lok)

First RunEnd Size(-8 Tube)

The part number can be constructed using the following rulesusing size, shape, end maching and material codes listed onpage A8.

Nomenclature rules:1. All size code rules are the same as the ones in standard

nomenclature.2. In tee and cross callouts, the shape codes J and K come

after the codes for both run ends.

3. With different type tube ends, the order of call-out hierar-chy is as follows: X, U, I, L, T4, P4, K4.

4. With different type port ends (in adapters), the order of call-out is Pipe, SAE, ISO Metric (A87, F87, G87), BSPP,BSPT, Metric (A8, F8) and JIS B2351 (F47, A47).

5. Male port end is called out before female port end.

6. Tube end is called out before port end.

Examples of Non-Standard Nomenclature:

16 X H U - M

Second RunEnd Size(1/4" NPTF)

Monel1" Tube Ends

Straight

FerulokTriple-Lok

3/8 - 8 F H G 5 - S3/8" Pipe

-8 SAE PortSteel

SAE PortShape (Straight)

Male NPTF

MaterialFemale Pipe (Run)

Male Pipe Elbow (Leg)

Leg SizeRun Size

Part Number Example:

1/4 x 1/8 CD - S

Compressed nomenclature for parts made from metric hexbarstock or forgings with metric wrench flats require that an “M”be placed before material symbol. Above part will be called outas 1/4x1/8CDMS.

Size Code:

Fractional pipe sizes are used for pipe fittings size code. An “x”instead of a “-” is used between end sizes.

Material Code:

Same as in standard nomenclature.


–

A8FluidConnectors


4300 Catalog General TechnicalTFD Parts Nomenclature

2 1/8 1/8 5/16-24 M8 M8x13 3/16 3/8-24 M10 M10X14 1/4 1/4 7/16-20 M12 M12X1.55 5/16 1/2-20 M14 M14X1.56 3/8 3/8 9/16-18 M16 M16X1.58 1/2 1/2 3/4-16 M18 M18X1.5

10 5/8 7/8-14 M20 M20X1.512 3/4 3/4 1 1/16-12 M22 M22X1.514 7/8 1 3/16-12 M24 M24X1.516 1 1 1 5/16-12 M26 M26X1.520 1 1/4 1 1/4 1 5/8-12 M27 M27X224 1 1/2 1 1/2 1 7/8-12 M30 M30X232 2 2 2 1/2-12 M33 M33X2

M36 M36X2M42 M42X2M45 M45X2M48 M48X2M60 M60X2

Port End Port End Tube Thread Size Thread Size

SizeDash Tube Pipe Thread Straight MetricNo. O.D. (NPT, BSP) Thread Code Thread

Shape

C CapE 90° ElbowE4 90° Extra Long ElbowEM 90° Elbow, Metric Wrench FlatsH Straight ConnectorHM Straight Connector, Metric HexJ TeeJM Tee, Metric Wrench FlatsK CrossKM Cross, Metric Wrench FlatsHP Plug, Hex HeadHHPM Plug, Metric Hollow HexHHP Plug, Hollow HexHPM Plug, Metric Hex HeadHPCM Metric Hex Pipe CapHPC Hex Pipe CapHSP Plug, Hollow SquareSHP Plug, Square HeadV 45° ElbowVM 45° Elbow, Metric Wrench Flats

Material

B BrassCUNI Cupro-Nickel,

(ex. CUNI 70/30)D Dural (Aluminum),

Anodized or AlodinedM MonelS Steel with Zinc PlatingSS Stainless Steel 316 or

316L, Passivated

End Machining Type

Code orCall Out Description

A Adjustable SAE Straight Thread w/Locknut, BUW, & O-RingA2 ANPT Thread W/Trepanned Groove in HexA4 Adjustable BSPP Straight Thread w/Lock Nut, BUW, Retaining

Ring & O-RingA8 Adjustable Metric Straight Thread w/Lock Nut, BUW, Retaining

Ring & O-RingA9 Adjustable SAE Straight Thread w/Locknut & Metal Seal RingA47 Adjustable BSPP Thread with Lock Nut, BUW & O-RingA87 Adjustable Metric Straight Thread w/Lock Nut, BUW, & O-Ring per

ISO 6149BA Bleed AdapterB Braze-Lok (Requires Ring or Paste)B1 Braze or Weld Male Spud End (Turned Down Diameter)B3 Braze Socket/Female (Silver Braze)B4 Braze Socket/Female (Copper Braze)ED Eolastic Seal (Rubber)F Male Pipe Thread Tapered (NPTF)F1 Male Straight Thread (Any Inch Size)F2 Male Straight Thread/Inverted Flare NutF3 Male BSPT (British Std. Pipe, Tapered)F4 Male BSPP (British Std. Pipe, Parallel) w/O-Ring and Retaining

RingF5 Male Straight Thread (Non-Adjustable) w/O-RingF8 Male Straight Thread Metric (Non-Adjustable) w/O-Ring &

Retaining RingF9 Male Straight Thread (Non-Adjustable) w/Metal SealF41 Male BSPP Thread w/Cutting Face SealF42 Male BSPP Thread w/Eolastic SealF46 Male BSPP Thread w/Dowty SealF47 Male BSPP Thread w/O-Ring (No Retaining Ring)F81 Male Metric Thread w/Cutting Face SealF82 Male Metric Thread w/Eolastic SealF86 Male Metric Thread w/Dowty SealF87 Male Metric Thread w/O-Ring (No Retaining Ring)G Female Pipe Thread Tapered (NPTF)G1 Female Straight Thread (Any Inch Size)G2 Female Straight Thread/Inverted Flare PortG3 Female BSPT (British Std. Pipe, Tapered)G4 Female BSPP (British Std. Pipe, Parallel) PortG5 Female Straight Thread/O-Ring Port (SAE)G7 Female Straight Pipe Thread (NPSM) Rigid ConstructionG8 Female Straight Metric Thread (Port)G28 Female Metric Thread/Inverted Flare PortG47 Female BSPP Port per JIS B2351, Size Called Out by Fractional

EquivalentHB Hose Bead/Single/Size Called Out by Dash Size of Hose IDHN Hose Barb/Multiple/Size Called Out by Dash Size of Hose IDHPC Hex Pipe CapHSP Hollow Square/Pipe Plug

I Intru-Lok MachiningI2 Intru-Lok Bulkhead MachiningJ4 Banjo connection with soft (KDS) seal for BSPP portJ8 Banjo connection with soft (KDS) seal for METRIC portK4 60° Cone/BS 5200 with Male ISO 228-1 G Thread (BSPP)K8 Metric 30° Seat (DIN 7631)L Seal-Lok Male ORFS/Bar Stock or ForgingL2 Seal-Lok/Male Bulkhead ORFS/Bar Stock or ForgingL6 Seal-Lok/Female Swivel/Requires Crimp Style NutN4 Swivel Nut with BSPP Thread, Size Called Out by Fractional SizeN8 Swivel Nut with Metric ThreadO O-Ring (Rubber)P4 60° Cone/JIS B 8363 with Male ISO 228-1 G Thread (BSPP)P8 60° Cone/JIS B 8363 with Male Metric ThreadP46 60° Cone/Swivel Mates with P4 MachiningP86 60° Cone/Swivel Mates with P8 MachiningQ1 Code 61 Flange End (4-Bolt)Q2 Code 62 Flange End (4-Bolt)S 45° Male FlareS4 45° Male Flare/with Male BSPP ThreadS6 SAE 45° Swivel End, Requires Swivel NutS7 45° Internal Flare (Rigid) to Mate with 45° ConeT 30° Male Flare, Inch ThreadsT3 Blank Tube End for Ferulok or Intru-LokT4 30° Male Flare/with Male ISO 228-1 G Thread (BSPP)T6 30° Female Seat Swivel/Requires Swivel NutT8 30° Male Flare/with Metric ThreadT46 30° Female Swivel/to Mate with T4 MachiningT47 30° Female Seat Rigid/to Mate with T4 MachiningT86 30° Female Seat Swivel/to Mate with T8 MachiningT87 30° Female Seat Rigid/to Mate with T8 MachiningU Ferulok MachiningU2 Ferulok Bulkhead MachiningU4 Superlok (obsolete)U6 Ferulok Swivel/Requires Swivel NutU8 24° Flareless/with Metric Thread (EO)U8SP Standpipe for EO (U8) Connection without Bite Ring and NutU86 24° Male Seat Swivel/to Mate with U8 Machining (Wirelok)U86SP Standpipe for EO (U8) Connection Assembled with Functional Nut

(FM) or Bite Ring (DPR) and Nut (M)W Weld-LokW2 Turned Down Male End to Fit Weld-Lok SocketW3 Turned Down Male End for Butt-Weld (Bore to Match I.D.)X Triple-Lok MachiningX2 Triple-Lok Bulkhead MachiningX6 Triple-Lok Swivel End/Requires Swivel Nut (Crimp or wirelok)X7 Triple-Lok Female Seat Rigid/to Mate with X Machining

End Machining Type

Code orCall Out Description

Size, Shape, Material and End Machining TypeCode Tables for Non-Standard Nomenclature

Table A3 —Size, Shape, Material and End Machining Type Code Tables for Non-Standard Nomenclature

For help in identifying EO/EO-2 fittings, see page H24.


A9FluidConnectors


AFitting Selection SummarySelection of an appropriate Parker fitting for a given applicationdepends on the fluid system operating parameters listed belowand the tube material and wall thickness they require:

1. Type of fluid2. Operating temperature range3. Type of line — pressure, return or suction

4. Maximum flow rate through the line5. Maximum operating / service pressure6. Severity of service

7. Environment

Using the fluid system operating parameters and the data in thetube selection section (please refer to page A25) determine theappropriate tube material, size and wall thickness for theapplication. Then, based on the tube selected and appropriatefluid system operating parameters, determine fitting type(s)and material(s) using the features comparison table below.

In cases where more than one of the fitting types satisfy theperformance requirements, the choice can be narrowed byother considerations, such as current practice or previousexperience, personal or customer preference, preferred tubetype, assembly and maintenance considerations, cost, etc.

Features Comparison of Tube Fittings

Feature Seal-Lok Fittings Triple-Lok Fittings Ferulok Fittings

PerformancePressure Capability Very high Medium to high Medium to high

For details see Working Pressure Charts in the individual fitting sections

Seal Reliability Excellent Good Very Good

Elastomeric seal Metal to metal seal Metal to metal seal

High tolerance to minor surface Low tolerance to minor surface Sealing surfaces are less prone toimperfections and damage imperfections and damage damage

High tolerance to assembly variations Low tolerance to assembly variations Low tolerance to assemblyvariations

Vibration Resistance in Very Good Good Very GoodRigid Systems

Proper tube support and clamping Proper tube support and clamping Proper tube support and clampingare important are very important are important

Tube CompatibilityTube O.D. Inch or metric Inch or metric Inch only

Wall thickness All Thin to medium Medium to heavy

Critical Features O.D. tolerance & hardness for I.D. finish, wall thickness uniformity O.D. tolerance, finish and“Parflange” (concentricity) and hardness hardness

O.D. tolerance only — for brazing

AssemblyTube Preparation Tube Flanging Sleeve brazing Tube Flaring Sleeve presetting

(Parflange)

Easy & quick Easy but slower Easy & quick Easy & quick (Smaller sizes canthan flanging be hand preset with wrenches)

Easy to inspect Easy to inspect Easy to inspect Requires a trained eye to inspect

Ease of Installation Excellent Good

Minimum skill and training are Low tolerance to assembly variations. Requires skilled andnecessary because of high tolerances trained personnel.to assembly variations

Ease of Maintenance Excellent Very Good Good

No tube entry Small tube entry Large tube entry

Table A4 — Features Comparison of Tube Fittings(Table is continued on the next page)

Selection of Fitting Type

A10FluidConnectors



Table A4 (Cont'd.) — Features Comparison of Tube Fittings

1) Zinc protective plating starts degrading at approximately 500°F.2) Ferrule material limits the low temperature capabilities.3) Besides temperature capability, O-rings compatibility with the fluid must be verified before final selection.

See Table A23 for detailed information on O-ring selection.4) Stainless steel loses strength at a faster rate than low carbon steel as the service temperature increases.

Please refer to the temperature derating chart on Page A31 for more details.

Features Comparison of Tube Fittings

Feature Seal-Lok Fittings Triple-Lok Fittings Ferulok Fittings

Conformance to SAE J1453, ISO 8434-3 (metric only) SAE J514, MIL-F-18866, SAE J514,Industry and ISO 8434-2 (metric only) MIL-F-18866International Standards

Current Users Mainly used in U.S. and Canada Most popular fitting in the world Mainly used in U.S. and CanadaThe metric version is very popular

Gaining use internationally in Europe

Temperature Capability The temperature range of fittings with O-rings must be that which is within both the fitting and the O-ringtemperature capabilities

Configurationswithout O-ring

Steel Seal-Lok always has an O-ring. -65°F to 500°F1) (-54° to 260°C) -65°F to 500°F1) (-54° to 260°C)Hence, use O-ring capability

Stainless Steel information below -425°F to 1200°F (-254° to 649°C) -20°F2) to 1200°F4) (-29° to 649°C)

Brass -40°F to 400°F (-40° to 204°C) —

Aluminum -40°F to 400°F (-40° to 204°C) —

Monel — -65°F to 800°F (-54° to 427°C)

Configurations withO-ring3)

Nitrile (Buna-N)N0552SAE J515, Type I -30°F to 250°F (-34° to 121°C) -30°F to 250°F (-34° to 121°C) -30°F to 250°F (-34° to 121°C)

Nitrile (Buna N) -65°F to 275°F (-54° to 135°C) -65°F to 275°F (-54° to 135°C) -65°F to 275°F (-54° to 135°C)N0756

NeopreneC0873 -45°F to 250°F (-43° to 121°C) -45°F to 250°F (-43° to 121°C) -45°F to 250°F (-43° to 121°C)

EPDM-Ethylene-Propylene E0540 -70°F to 275°F (-57° to 135°C) -70°F to 275°F (-57° to 135°C) -70°F to 275°F (-57° to 135°C)SAE J515, Type II

Fluorocarbon (e.g., Viton)V0894 -15°F to 400°F (-26° to 204°C) -15°F to 400°F (-26° to 204°C) -15°F to 400°F (-26° to 204°C)

SAE J515, Type III



A11FluidConnectors


AConnectors For World ClassProductsConnector Proliferation:

Today many different types of connectors are being usedaround the world. Most of these have come about throughhistorical use and local preference for a certain design concept.Some connections of the North American origin such as fourbolt flange, SAE straight thread and 37° flare have found somedegree of acceptance and use in Europe and Japan as a resultof the exports of U.S. machinery to the regions after World WarII. But, large majority of usage is made up of a variety ofindigenous port and tube connections. A quick review of thecommonly used connections around the world reveals thatthere are eight different port connections and eleven differenttube/hose connections.

Port Connections:NPTF BSPPJIS-PT (BSPT) SAE Straight ThreadJIS-B2351 (BSPP similar to SAE) DIN Metric4- Bolt Flange ISO 6149

Tube/Hose Connections:37° Flare (Inch Threads) 24° Flareless (DIN)30° Flare/60° Cone-JIS O-Ring Face Seal (ORFS)24° Weld Nipple (DIN) 24° Flareless-JIS24° Flareless (SAE) 60° Cone, BSPP37° Flare (Metric Threads) NPSM Swivel60° Cone, Metric Threads

The Challenge:

Leakage is no longer acceptable in world class products.Above proliferation, besides limiting availability and increasingcost, increases leakage potential through misapplications.Therefore, the challenge facing the fluid power industry is twofold — eliminate leakage and minimize proliferation.

Meeting The Challenge:

This challenge has been met through a very intensive and co-operative effort by the member nations of sub-committee 4 ofthe ISO Technical Committee 131 (ISO/TC131). The subcom-mittee started this effort in 1989 and has nearly completeddevelopment of performance based standards for the mostwidely used ports and tube/hose connections to limit prolifera-tion, and strongly endorsing those with elastomeric seals toeliminate leakage in hydraulic systems.

Five ports, four threaded and the four bolt flange, and four tube/hose connections as shown on the following page have beenstandardized. The threaded ports and tube/hoseconnections are paired in the ISO 8434 series of fitting stan-dards as defined in the table below.

To minimize proliferation in port usage and promote leak freeconnections, the sub-committee strongly endorses use of ISO6149 port for all new designs by including the following state-ment in all port standards:

“For threaded ports and stud ends specified in newdesigns in hydraulic fluid power applications, onlyISO 6149 shall be used. Threaded ports and studends in accordance with ISO 1179, ISO 9974 and ISO11926 shall not be used for new designs in hydraulicfluid power applications.”

On the tube/hose connection side, only ISO 8434-3 (O-ringFace Seal) and ISO 8434-4 (24° cone with weld nipple) featureelastomeric seal for zero leak performance. Combining thesewith the ISO 6149 for the port connection leads to two (2)combinations (complete fittings) for use in leak-free world classproducts. They are:

ISO 8434-3 O-ring Face Seal

ISO 8434-4 24° Cone With Soft Seal andISO 6149 Port

For large port connections, the four bolt flange connection perISO 6162 (SAE J518 is included in ISO 6162) remains widelyused and the recommended connection.

Table A5 — ISO Standard Port and Tube/Hose Connection Combinations


Tube/Hose Connection24° Cone

Flareless (DIN) 37° Flare 24° ConeApplication Port (Bite Type) (Inch Threads) ORFS Weld Nipple

MetricFor All Designs ISO 6149 ISO 8434-1 ISO 8434-2 ISO 8434-3 ISO 8434-4

(SAE J2244)

BSPPISO 1179 ISO 8434-1 ISO 8434-2 — ISO 8434-4

(DIN 3852-2)Not for NewDesigns in Metric

Hydraulic Fluid ISO 9974 ISO 8434-1 — — ISO 8434-4Power (DIN 3852-1)

UN/UNFISO 11926 — ISO 8434-2 — —

(SAE J1926)

A12FluidConnectors



ISO CONNECTOR STANDARDS

PORT CONNECTIONS

ISO 6149Metric Threads

O-Ring Seal

High Pressure

ISO 6162Four Screw,Split Flange

andISO 6164

Four Screw,One Piece

Square Flange

High Pressure

ISO 1179BSPP Threads

Flat Face

ISO 9974Metric Threads

Flat Face

ISO 11926Inch ThreadsO-Ring Seal

High Pressure

For All Designs

ElastomericSeal Ring,Type “E”

High Pressure

Cutting FaceMetal to MetalSeal, Type “B”

Low Pressure

O-ring withRetaining Ring

Seal, Types“G” & “H”

Medium Pressure

TUBE/HOSE CONNECTIONS

ISO 8434-124° ConeBite Type

Metric TubeOnly

Metal to MetalSeal

ISO 8434-237° Flare

Metric or InchTube

Metal to MetalSeal

ISO 8434-3O-Ring Face

Seal

Metric or InchTube

ElastomericSeal

ISO 8434-424° Cone

with Weld Nipple

Metric TubeOnly

ElastomericSeal

Not for New Designs in Hydraulic Fluid Power


Fig. A1 — ISO Connector Standards


A13FluidConnectors


ATube End ConnectionsThreads, Conformance Specifications and Use

Description O-Ring Face Seal 37° Flare Inch 24° Cone Metric 24° Cone Metric 24° Cone 30° Flare and(ORFS) Flareless Flareless Flareless 60° Cone

“Seal-Lok” “Triple-Lok” “Ferulok” “EO” and “EO2” “JIS” “JIS”

Thread Type ISO 263 ISO 263 ISO 263 ISO 261 ISO 261 ISO 228-1

ANSI B1.1 unified ANSI B1.1, unified ANSI B1.1, unified Metric fine JIS B 0207 JIS B0202, BS2779

ISO No. 8434-3 8434-2 — 8434-1 & -4 — —(12151-1)1) (12151-6)1) (12151-2)1)

SAE No. J1453/J5162) J514/J5162) J514 — — —

DIN No. — — — 3861, 3865 & — —200782)

JIS No. — — — Similar to B2351 B2351 B83633)

BSI No. — — — — — Similar to BS 52004)

Current use Mainly used in Used throughout Mainly used Mainly used in Mainly used in Mainly used inNorth America the world with in North America. Europe. Japan for hard Japan, U.K. andslowly gaining major usage in Slowly gaining plumbed British common-acceptance in North America. acceptance in systems. wealth countries.Europe and North America.Japan.

Table A6 — Tube End Connections

1) Hose fitting specification no. (to be published).2) Hose fitting specification no.3) Adapter and hose fitting specification no.4) 60° cone fittings only. See page A15 for more information.

SAE J514 ISO 8434-4ISO 8434-1JIS B2351


A14FluidConnectors



Tube End ConnectionsThread Size Guide — Inch Thread

Tube O.D. or O-ring Face Seal 37° Flare Inch 24° cone3) SAE 45° Flare3)

Adapter Size (ORFS) Flareless

Nominal Nominal Inch SAE J1453 SAE J514 SAE J514 SAE J512metric SAEsize3) size dash size “Seal-Lok” “Triple-Lok” “Ferulok”

Inch Inch Inch InchANSI B1.1, unified ANSI B1.1, unified ANSI B1.1, unified ANSI B1.1, unified

(mm) (in) (ISO 263) (ISO 263) (ISO 263) (ISO 263)

— 1/8 -2 — 5/16-24 5/16-24 5/16-244 — — — — — —5 3/16 -3 — 3/8-24 3/8-24 3/8-246 1/4 -4 9/16-18 7/16-20 7/16-20 7/16-208 5/16 -5 — 1/2-20 1/2-20 1/2-20

10 3/8 -6 11/16-16 9/16-18 9/16-18 5/8-1812 1/2 -8 13/16-16 3/4-16 3/4-16 3/4-1614 5/8 -10 1-14 7/8-14 7/8-14 7/8-14

151) 5/8 -10 1-14 7/8-14 — —16 5/8 -10 1-14 7/8-14 — —

181) 3/4 -12 1 3/16-12 1 1/16-12 1 1/16-12 1 1/16-1420 3/4 -12 1 3/16-12 1 1/16-12 — —

221) 7/8 -14 — 1 3/16-12 1 3/16-12 —25 1 -16 1 7/16-12 1 5/16-12 1 5/16-12 —

281) 1 1/4 -20 1 11/16-12 — 1 5/8-12 —30 1 1/4 -20 1 11/16-12 1 5/8-12 — —

322) 1 1/4 -20 1 11/16-12 1 5/8-12 — —38 1 1/2 -24 2-12 1 7/8-12 1 7/8-12 —50 2 -32 2 1/2-124) 2 1/2-12 2 1/2-12 —

Table A7 — Tube End Connections

1) Not preferred for high pressure applications.2) Non-preferred size. Use 30mm size in place of 32mm size.3) Metric tube sizes do not apply to “Ferulok” and 45° flare fittings.4) Not part of SAE J1453.



A15FluidConnectors


ATube End ConnectionsThread Size Guide — Metric, BSPP and JIS Threads

Table A8— Tube End Connections

1) Not preferred for high pressure applications.2) Not preferred sizes. Use 10mm, 20mm and 30mm sizes in place of 9mm, 19mm and 32mm sizes, respectively.3) Covered in ISO 8434-1. Non-standard with Parker TFDE (Ermeto).4) Not part of DIN or ISO standards, but offered by Parker TFDE (Ermeto).5) ISO 228-1 G threads and JIS B 0202 G or PF threads can be interchanged. “A” and “B” indicate different tolerance

classes on the male threads, “A” having tighter tolerances than “B”.6) Non-preferred size.

Tube O.D. or Metric 24° cone Metric 24° cone 60° Cone 30° Flare andAdapter Size Flareless 60° Cone

Flareless Weld NippleDIN 3861 DIN 3865 JIS B2351

“EO” and “EO-2” “JIS” BS 5200 JIS B8363

LL Series L Series S Series Metric ISO 228-1Metric Metric Metric ISO 261 ISO 228-1 (JIS B 0202)

(mm) ISO 261 ISO 261 ISO 261 (JIS B0207) (BSPP)5) (BSPP)5)

— — — — — — —4 M8 x 1 — — — — —5 M10 x 13) — — — — —6 M10 x 1 M12 x 1.5 M14 x 1.5 M12 x 1.5 G 1/8 A G 1/4 B8 M12 x 1 M14 x 1.5 M16 x 1.5 M14 x 1.5 G 1/4 A —

92) — — — — — G 3/8 B10 M14 X 14) M16 x 1.5 M18 x 1.5 M16 x 1.5 G 3/8 A —12 M16 x 14) M18 x 1.5 M20 x 1.5 M18 x 1.5 G 1/2 A G 1/2 B14 — — M22 x 1.5 — — —

151) — M22 x 1.5 — — — —16 — — M24 x 1.5 M24 x 1.5 G 5/8 A6) —

181) — M26 x 1.5 — — — —192) — — — — — G 3/4 B20 — — M30 x 2 M28 x 1.5 G 3/4 A —

221) — M30 x 2 — — — —25 — — M36 x 2 M35 x 1.5 G 1 A G 1 B

281) — M36 x 2 — — — —30 — — M42 x 2 M40 x 1.5 G 1-1/4 A —

322) — — — — — G 1-1/4 B351) — M42 x 2 — — — —38 — — M52 x 2 M48 x 1.5 G 1-1/2 A G 1-1/2 B

421) — M52 x 2 — — — —50 — — — — G 2 A G 2 B


A16FluidConnectors



Port Metric SAE Four Screw Four Screw OneDescription Straight Thread Straight Thread Split Flange Piece Square

O-Ring Port O-Ring Port Flange

Thread Type ISO 261 ISO 263 Metric screws: ISO 261 ISO 261Metric Fine ANSI B1.1, Unified Inch screws: ISO 263

ISO No. 6149 11926 6162 6164

SAE No. J2244 J1926 J518 (covers inch —screws only)

DIN No. 3852-3 Form “W” — — —

JIS No. — — B8363 (covers flange —head only)

BSI No. — — — —

Current use Gaining use in U.S. Widely used in North Widely used throughout Mainly used in Germany.and western Europe. America. Limited use the world. Limited use elsewhere.Widely used in former in the rest of the world.Soviet block countries.

Port End ConnectionsThreads, Conformance Specifications, and Use

Table A9 — Port End Connections



A17FluidConnectors


APort End ConnectionsThreads, Conformance Specifications, and Use

Port British Standard NPTF - Dryseal JIS/BSPPDescription Pipe Parallel Metric American JIS/BSPT British Standard

(BSPP) Straight Thread Standard Taper British Standard Pipe, Pipe, ParallelFlat Face Port Flat Face Port Pipe Taper O-ring Port

Thread Type ISO 228-1 ISO 261 ANSI B1.20.3 ISO 7 ISO 228-1BS 2779 Metric Fine BS 21 BS 2779

JIS B 0203 JIS B 0202

ISO No. 11791) 9974 — — —

SAE No. — — J476 — —

DIN No. 3852-2 3852-1 — Similar to: 3852-2 —Form X or Y Form X or Y form Z

JIS No. — — — B8363 B2351 Type “O”

BSI No. — — — — Similar to BS 5380

Current use Most popular in Moderate use in Mainly used in Mainly used in Japan and Mainly used inwestern Europe Europe, mainly in North America parts of western Europe. Japan. Some useand former UK Germany. some use in rest in U.K. of similarcolonies. Limited of the world. port, BS5380. use in rest ofthe world.

Table A10 — Port End Connections

1) Being revised.


A18FluidConnectors



Port Detail — ISO 6149-1 — Metric Straight Thread O-ring Port(SAE 2244-1/DIN 3852, Part 3)Metric ISO 261, “M” Thread

Thread Large Small d34) d4 d5 d6 L1 L25) L3 L4 Z°Size d22) d23) Parker

+ 0.1 +0.5 +0.4 min max min full ±1° O-ringd11) min min ref. 0 0 0 thread Size8)

M8 X 1 17 14 3 12.5 9.1 14 1.6 11.5 1 10 12° M8 ISO O-ringM10 X 1 20 16 4.5 14.5 11.1 16 1.6 11.5 1 10 12° M10 ISO O-ring

M12 X 1.5 23 19 6 17.5 13.8 19 2.4 14 1.5 11.5 15° M12 ISO O-ringM14 X 1.56) 25 21 7.5 19.5 15.8 21 2.4 14 1.5 11.5 15° M14 ISO O-ringM16 X 1.5 28 24 9 22.5 17.8 24 2.4 15.5 1.5 13 15° M16 ISO O-ringM18 X 1.5 30 26 11 24.5 19.8 26 2.4 17 2 14.5 15° M18 ISO O-ringM22 X 1.5 34 29 14 27.5 23.8 29 2.4 18 2 15.5 15° M22 ISO O-ringM27 X 2 40 34 18 32.5 29.4 34 3.1 22 2 19 15° M27 ISO O-ringM33 X 2 49 43 23 41.5 35.4 43 3.1 22 2.5 19 15° M33 ISO O-ringM42 X 2 60 52 30 50.5 44.4 52 3.1 22.5 2.5 19.5 15° M42 ISO O-ringM48 X 2 66 57 36 55.5 50.4 57 3.1 25 2.5 22 15° M48 ISO O-ringM60 X 2 76 67 44 65.5 62.4 67 3.1 27.5 2.5 24.5 15° M60 ISO O-ring

FOR CARTRIDGE VALVE CAVITIES ONLY (SEE ISO 7789)

M20X1.57) 32 27 — 25.5 21.8 27 2.4 — 2 14.5 15° M20 ISO O-ring

Table A11— Port Detail — ISO 6149-1

1) Per ISO 261 tolerance class 6H. Tap drill per ISO 2306 class 6H.2) Spotface diameter with identification ridge.3) Spotface diameter without identification ridge. Port to be identified by marking “metric” next to it or “ISO 6149-1 Metric” on

component name plate.4) Reference only. Connecting hole application may require a different size.5) Tap drill depths given require use of a bottoming tap to produce the specified full thread lengths.

Where standard taps are used, increase tap drill depths accordingly.6) Preferred for diagnostic port applications.7) For cartridge valve cavity applications only.8) 90 durometer nitrile is standard for hydraulic applications.

NOTE: For port tapping tools, see pages N52 and N53. See page A45 for assembly torques.



A19FluidConnectors


APort Detail — SAE J1926-1 — SAE Straight Thread O-ring Port (ISO 11926-1)(Conforms to MS16142. Does NOT conform to MS33649.)UN/UNF Threads

Nominal Tube OD1) Thread Size d2 dia.3) d3 dia. d4 dia. d5 dia.4) L1 L25) L33), 6) L4 Z

Nom2) Inch Metric ANSI B1.1 FullSAE (ISO 263) min. min. +0.13 +0.4 min. max. Thread ±1° ParkerDash -0.00 -0.0 min. O-ringSize (in) (mm) (in) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) deg Size7)

-2 1/8 —- 5/16-24 UNF-2B 17 1.6 11 9.1 1.9 12.0 1.6 10.0 12° 3-902-3 3/16 4 3/8-24 UNF-2B 19 3.2 13 10.7 1.9 12.0 1.6 10.0 12° 3-903-4 1/4 6 7/16-20 UNF-2B 21 4.4 15 12.4 2.4 14.0 1.6 11.5 12° 3-904-5 5/16 8 1/2-20 UNF-2B 23 6.0 16 14.0 2.4 14.0 1.6 11.5 12° 3-905-6 3/8 10 9/16-18 UNF-2B 25 7.5 18 15.6 2.5 15.5 1.6 12.7 12° 3-906-8 1/2 12 3/4-16 UNF-2B 30 10.0 22 20.6 2.5 17.5 2.4 14.3 15° 3-908-10 5/8 14, 15, 16 7/8-14 UNF-2B 34 12.5 26 23.9 2.5 20.0 2.4 16.7 15° 3-910-12 3/4 18, 20 1 1/16-12 UN-2B 41 16.0 32 29.2 2.5 23.0 2.4 19.0 15° 3-912-14 7/8 22 1 3/16-12 UN-2B 45 18.0 35 32.3 3.3 23.0 2.4 19.0 15° 3-914-16 1 25, 28 1 5/16-12 UN-2B 49 21.0 38 35.5 3.3 23.0 3.2 19.0 15° 3-916-20 1 1/4 30, 32, 35 1 5/8-12 UN-2B 58 27.0 48 43.5 3.3 23.0 3.2 19.0 15° 3-920-24 1 1/2 38, 42 1 7/8-12 UN-2B 65 33.0 54 49.8 3.3 23.0 3.2 19.0 15° 3-924-32 2 50 2 1/2-12 UN-2B 88 45.0 70 65.7 3.3 23.0 3.2 19.0 15° 3-932

Table A12 — Port Detail — ISO 11926

1) Nominal tube OD is shown for the standard inch sizes and the conversion to equivalent millimeter sizes. Figures are forreference only, as any boss can be used for a tubing size depending upon other design criteria.

2) See SAE J846 for more information.3) If face of boss is on a machined surface, dimensions d2 and L3 need not apply as long as corner radius R0.2 is

maintained.4) Diameter d5 shall be concentric with thread pitch diameter within 0.005 in (0.13mm) FIM, and shall be free from

longitudinal and spiral tool marks. Annular tool marks up to 100 µin (2.5µm) max shall be permissible.5) Tap drill depths given require use of bottoming taps to produce the specified full thread lengths. Where standard taps are

used, the tap drill depths must be increased accordingly.6) Maximum recommended spotface depth to permit sufficient wrench grip for proper tightening of the fitting or locknut.7) 90 durometer nitrile is standard for hydraulic applications.

NOTE: For port tapping tools, see page N50. For assembly torques see page A41 and A42.


0.1

A20FluidConnectors



Port Detail — ISO 6162 — Four-Bolt Flange Connection(Includes SAE J518)

NOTE: For assembly procedure and torques, see page A44.

Nominal 2.5 to 31.5 MPa Series1)

Flange (SAE Code 61) O-Rings3)

Size Clamping Screws Flange Half and Bolt Pattern

D3 Screw Holes Parker

Type I Type II2) (SAE J518) C J W Y L5 L6 ISO 3601-1 O-Ring

(in) (mm) Thread t1 Min. depth Thread (UNC) t1 Min. depth ± 0.25 max. min. ±0.25 Ref. ID x Section Size

1/2 13 M8 x 1.25 12.5 5/16 - 18 24 38.1 54.9 53.1 17.5 46 13 19 19 x 3.55 2-210 3/4 19 M10 x 1.5 16.5 3/8 - 16 22 47.6 65.8 64.3 22.3 52 14 22 25 x 3.55 2-214

1 25 M10 x 1.5 14.5 3/8 - 16 22 52.4 70.6 69.1 26.2 59 16 22 32.5 x 3.55 2-2191 1/4 32 M10 x 1.5 16.5 7/16 - 14 28 58.7 80.3 78.5 30.2 73 144) 24 37.5 x 3.55 2-2221 1/2 38 M12 x 1.75 19.5 1/2 - 13 27 69.9 94.5 93.0 35.7 83 16 25 47.5 x 3.55 2-225

2 51 M12 x 1.75 19.5 1/2 - 13 27 77.8 103.1 100.1 42.9 97 16 26 56 x 3.55 2-2282 1/2 64 M12 x 1.75 21.5 1/2 - 13 30 88.9 115.8 112.8 50.8 109 19 38 69 x 3.55 2-232

3 76 M16 x 2 28.5 5/8 - 11 30 106.4 136.7 133.4 61.9 131 22 41 85 x 3.55 2-2373 1/2 89 M16 x 2 28.5 5/8 - 11 33 120.7 153.9 150.9 69.9 140 22 28 97.5 x 3.55 2-241

4 102 M16 x 2 25.5 5/8 - 11 30 130.2 163.6 160.3 77.8 152 25 35 112 x 3.55 2-2455 127 M16 x 2 27.5 5/8 - 11 33 152.4 182.6 185.7 92.1 181 28 41 136 x 3.55 2-253

Nominal 40 MPa Series1)

Flange (SAE Code 62) O-Rings3)

Size Clamping Screws Flange Half and Bolt Pattern

D3 Screw Holes Parker

Type I Type II2) (SAE J518) C J W Y L5 L6 ISO 3601-1 O-Ring

(in) (mm) Thread t1 Min. depth Thread (UNC) t1 Min. depth ± 0.25 max. min. ±0.25 Ref. ID x Section Size

1/2 13 M8 x 1.25 14.5 5/16 - 18 21 40.5 57.2 55.6 18.2 48 16 22 19 x 3.55 2-210 3/4 19 M10 x 1.5 16.5 3/8 - 16 24 50.8 72.1 70.6 23.8 60 19 28 25 x 3.55 2-214

1 25 M12 x 1.75 21.5 7/16 - 14 27 57.2 81.8 80.3 27.8 70 24 33 32.5 x 3.55 2-2191 1/4 32 M12 x 1.75 18.5 1/2 - 13 25 66.6 96.0 94.5 31.8 78 27 38 37.5 x 3.55 2-2221 1/2 38 M16 x 2 25.5 5/8 - 11 35 79.3 114.3 111.3 36.5 95 30 43 47.5 x 3.55 2-225

2 51 M20 x 2.5 33.5 3/4 - 10 38 96.8 134.9 131.8 44.5 114 37 52 56 x 3.55 2-228

Table A13 — Port Detail — ISO 6162

1) 1 MPa = 10 bar = 145 PSI.2) Not for new design.3) 90 durometer nitrile is standard for hydraulic applications.4) 16 mm is also acceptable.



A21FluidConnectors


A

ElastomericSeal Ring

Seal Type “E”

Special ElastomericSeal Ring

Seal Type “E”

O-Ring withRetaining RingTypes “G” & “H”

Cutting FaceSeal Type “B”

Bonded WasherSeal

Metal-to-MetalSeal

Seal Ring O-Ring

RetainingRing

O-Ring

Back-UpWasher

BondedWasher

Locknut

O-Ring RigidSeal Type “G”

O-Ring AdjustableSeal Type “H”

Cutting FaceSeal Type “B”

Bonded Washer(e.g. Dowty) Seal

Min. FullThread

ThreadPitch Dia.

Ra 3.2

45°L1 Max.

Cutting Face

L 2

D3

D4

Port Sealing Methods

Port Detail — ISO 1179-11) — Flat Face Port with British Standard Pipe,Parallel (BSPP) Threads(DIN 3852, Part 2)ISO 228-1 “G” Threads

Table A14 — Port Detail — ISO 1179-1

1) Conforms to proposed revision.2) 90 durometer nitrile is standard for hydraulic applications.3) See page I63 for O-ring and retaining ring ordering information.4) See page G25 for details.


EOlastic Seal (Type E)

Types B & E

Types G & H Part Number

Parker

O-Ring Size2O-Ring I.D. x Section

(mm)Retaining Ring

Part Number

G 1/8-28 9.9 15 17.2 1.0 8.5 ED10X1/X 5-585 7.97 x 1.78 1/8 Retaining Ring D9DT-2G 1/4-19 13.3 20 20.7 1.5 12.5 ED14X1.5/X 2-111 10.77 x 2.62 1/4 Retaining Ring D9DT-4G 3/8 19 16.8 23 24.5 2.0 12.5 EDR3/8X 2-113 13.94 x 2.62 3/8 Retaining Ring D9DT-6G 1/2-14 21.1 28 34.0 2.5 14.5 EDR1/2X 5-256 17.96 x 2.62 1/2 Retaining Ring D9DT-8G 3/4-14 26.6 33 40.0 2.5 16.5 ED26X1.5/X 2-119 23.47 x 2.62 3/4 Retaining Ring D9DT-10G 1-11 33.5 41 46.1 2.5 18.5 ED33X2X 2-217 29.74 x 3.53 1 Retaining Ring D9DT-12

G 1 1/4-11 42.2 51 54.0 2.5 20.5 ED42X2X 2-222 37.69 x 3.53 1 1/4 Retaining Ring D9DT-16G 1 1/2-11 48.1 56 61.5 2.5 22.5 ED48X2X 2-224 44.04 x 3.53 1 1/2 Retaining Ring D9DT-20

G 2-11 59.9 69 73.5 3.0 26.0 — — — — D9DT-24

L2 min. (mm)

Bonded Washer

Part No.4

O-Ring and Retaining Ring

(Types G & H)3

Thread Size

(ISO 228-1)D3

(mm)

D4 (mm)

L1 max. (mm)

A22FluidConnectors



Port Detail — ISO 9974-1 — Flat Face Port with Metric Threads(DIN 3852, Part 1)Metric ISO261, “M” Thread

Thead D 3 D 4 L 1 L 2 W EOlastic Seal (Type E) O-ring and Retaining Ring1)

Size max. min. O-ring O-ring ID x section Retaining Ring(ISO 261) (mm) (mm) (mm) (mm) (mm) Part no. Size2) (mm) Part No.

M8 x 1 8 +0.2 13 1 8 ED8X1X 3-902 6.07x1.63 M8 RRM10 x 1 10 +0.2 15 1 8 ED10X1X 6-074 8.00x1.50 M10 RR

M12 x 1.5 12 +0.2 18 1.5 12 ED12X1.5X 2-012 9.25x1.78 M12 RRM14 x 1.5 14 +o.2 20 1.5 12 0.1 ED14X1.5X 2-013 10.82x1.78 M14 RRM16 x 1.5 16 +0.2 23 1.5 12 ED16X1.5X 3-907 13.46x2.08 M16 RRM18 x 1.5 18 +0.2 25 2 12 ED18X1.5XX 2-114 15.54x2.62 M18 RR

M20 x 1.53) 20 +0.2 27 2 14 ED20X1.5X 2-017 17.17x1.78 M20 RRM22 x 1.5 22 +0.2 28 2.5 14 ED22X1.5 2-018 18.77x1.78 M22 RR

M24 x 1.54) 26 +0.2 30 2.5 14 — 2-019 20.35x1.78 M24 RRM26 x 1.5 26 +0.2 33 2.5 16 ED26X1.5X 2-118 21.89x2.62 M26 RRM27 x 2 27 +0.2 33 2.5 16 ED26X1.5X 2-119 23.47x2.62 M27 RRM33 x 2 33 +0.3 41 2.5 18 0.2 ED33X2X 2-122 28.25x2.62 M33 RR

M36 x 24) 36 +0.3 43 2.5 18 — 2-124 31.42x2.62 M36 RRM42 x 2 42 +0.3 51 2.5 20 ED42X2X 2-128 37.77x2.62 M42 RR

M45 x 24) 45 +0.3 50 2.5 20 — 2-130 40.94x2.62 M45 RRM48 x 2 48 +0.3 56 2.5 22 ED48X2X 2-132 44.12x2.62 M48 RR

Table A15 — Port Detail — ISO 9974-1

1) Seal types G and H are not covered in ISO 9974-1. See page I64 for retaining ring and O-ring ordering information.2) 90 durometer nitrile is standard for hydraulic applications.3) For diagnostic applications.4) These sizes are not covered in ISO 9974-1.


ISO 9974 Port seal types available from Parker

RetainingRing

EOlasticSeal Ring

ElastomericSeal Ring

Seal Type E

Special ElastomericSeal Ring

Seal Type E

O-Ring Rigid

Seal Type G1)

O-Ring withRetaining RingTypes G & H3)

O-Ring Adjustable

Seal Type H1)

Cutting Face

Seal Type B

Cutting FaceSeal Type B

O-Ring O-Ring

Back UpWasher

Locknut

CuttingFace

Y ZX

D4

D3

45°

L1Max.

Ra 3.2W A

L2Min. FullThread

A

ThreadPitch Dia.

Metal-To-MetalSeal

X Y Z

(See Note 1)


A23FluidConnectors


A


NPTF and BSPT Dimensions

Male NPTF

Female NPTF

Male BSPT

Female BSPT

Table A16 — NPTF Dimensions

1) For bottoming taps only.

Table A17 — BSPT Dimensions

1) For bottoming taps only.

ThreadSize

NPTF

Male Thread Large O.D.

ThreadLengthD Min.

Tap DrillDepth 1)B Min.

Chmf.Dia.

E

1/8-27 0.41 0.31 0.38 0.42

1/4-18 0.55 0.44 0.47 0.55

3/8-18 0.68 0.47 0.53 0.69

1/2-14 0.85 0.59 0.69 0.85

3/4-14 1.06 0.63 0.75 1.06

1-11 1/2 1.33 0.75 0.84 1.34

1 1/4-11 1/2 1.67 0.78 0.84 1.68

1 1/2-11 1/2 1.91 0.81 0.88 1.92

2-11 1/2 2.39 0.81 0.91 2.39

ThreadSize

BSPT

Male Thread Large O.D.

ThreadLengthD Min.

Tap DrillDepth 1)B Min.

Chmf.Dia.

E

1/8-28 0.39 0.31 0.38 0.42

1/4-19 0.53 0.44 0.47 0.55

3/8-19 0.67 0.47 0.53 0.69

1/2-14 0.84 0.59 0.69 0.85

3/4-14 1.06 0.63 0.75 1.06

1-11 1.33 0.75 0.84 1.34

1 1/4-11 1.67 0.78 0.84 1.68

1 1/2-11 1.90 0.81 0.88 1.92

2-11 2.37 0.81 0.91 2.39

A24FluidConnectors


4300 Catalog General TechnicalSelection of Fitting Type

Tube to Port1) Pairing for Medium Pressure2) Applications

Tube O.D. Port Thread Thread O.D. Flow Dia. of Stud End3)

Inch Metric(Dash Size) (mm) SAE ISO NPTF4) BSPP SAE ISO NPTF BSPP SAE ISO NPTF BSPP5)

1/8 (-2) 4 5/16-24 M8X1 1/16-27 G 1/8-28 0.313 0.315 0.315 0.383 0.062 0.118 0.125 0.1723/16 (-3) 5 3/8-24 M10X1 1/8-27 G 1/8-28 0.375 0.394 0.407 0.383 0.125 0.177 0.188 0.1721/4 (-4) 6 7/16-20 M10X1 1/8-27 G 1/8-28 0.438 0.394 0.407 0.383 0.172 0.177 0.188 0.1725/16 (-5) 8 1/2-20 M12X1.5 1/8-27 G 1/4-19 0.500 0.472 0.407 0.518 0.234 0.236 0.188 0.2763/8 (-6) 10 9/16-20 M14X1.5 1/4-18 G 1/4-19 0.563 0.551 0.546 0.518 0.297 0.295 0.281 0.2761/2 (-8) 12 3/4-16 M16X1.5 3/8-18 G 3/8-19 0.750 0.630 0.681 0.656 0.391 0.354 0.406 0.354– 15 3/4-16 M18X1.5 1/2-14 G 1/2-14 0.750 0.709 0.850 0.825 0.391 0.433 0.531 0.4845/8 (-10) 16, 18 7/8-14 M22X1.5 1/2-14 G 1/2-14 0.875 0.866 0.850 0.825 0.484 0.551 0.531 0.4843/4 (-12) 20 1 1/16-12 M27X2 3/4-14 G 3/4-14 1.063 1.063 1.060 1.041 0.609 0.709 0.719 0.7097/8 (-14) 22 1 3/16-12 M27X2 3/4-14 G 3/4-14 1.188 1.063 1.060 1.041 0.719 0.709 0.719 0.7091 (-16) 25, 28 1 5/16-12 M33X2 1-11 1/2 G1-11 1.313 1.299 1.327 1.309 0.844 0.906 0.938 0.8461 1/4 (-20) 30, 35 1 5/8-12 M42X2 1 1/4-11 1/2 G 1 1/4-11 1.625 1.654 1.672 1.650 1.078 1.181 1.250 1.0831 1/2 (-24) 38, 42 1 7/8-12 M48X2 1 1/2-11 1/2 G 1 1/2-11 1.875 1.890 1.912 1.882 1.313 1.417 1.500 1.2992 (-32) 50 2 1/2-12 M60X2 2-11 1/2 G 2 -116) 2.500 2.362 2.387 2.347 1.781 1.732 1.938 1.938

Notes:1) Ports are in accordance with the standards listed below:

SAE J1926-1, ISO 6149-1, NPTF-SAE J476 and BSPP-ISO 1179-12) The pressure range covering all the sizes shown is 1000 to 5000 PSI.3) Stud ends are in accordance with the standards listed below:

SAE J1926-3, ISO 6149-3, NPTF-SAE J476, and BSPP-ISO1179-3 light (L) series or ISO 1179-44) Not recommended for leak free performance in hydraulic systems in any size for shape fittings (elbows, tees, etc.) and in sizes larger than

3/4-14 for straight fittings.5) Flow diameters shown are lower of those in ISO 1179-3 light (L) series and ISO 1179-4.6) Not covered in ISO standard.

Table A18 — Tube to Port Pairing for Medium Pressure Applications

Tube To Port1) Pairing For High Pressure2) Applications

Tube O.D. Port Thread Thread O.D. Flow Dia. of Stud End3)

Inch Metric(Dash Size) (mm) SAE ISO NPTF4) BSPP SAE ISO NPTF BSPP SAE ISO NPTF BSPP

1/8 (-2) 4 5/16-24 M8x1 1/16-27 G 1/8-28 0.313 0.315 0.315 0.383 0.062 0.079 0.125 0.1573/16 (-3) 5 3/8-24 M10x1 1/8-27 G 1/8-28 0.313 0.315 0.407 0.383 0.125 0.118 0.188 0.1571/4 (-4) 6 7/16-20 M12x1.5 1/8-27 G 1/8-28 0.438 0.472 0.407 0.383 0.172 0.157 0.188 0.1575/16 (-5) 8 1/2-20 M14x1.5 1/8-27 G 1/4-19 0.500 0.551 0.407 0.518 0.234 0.236 0.188 0.1973/8 (-6) 10 9/16-18 M16x1.5 1/4-18 G 3/8-19 0.563 0.630 0.546 0.656 0.297 0.275 0.281 0.3151/2 (-8) 12 3/4-16 M18x1.5 3/8-18 G 3/8-19 0.750 0.709 0.681 0.656 0.391 0.354 0.406 0.3155/8 (-10) 14, 16 7/8-14 M22x1.5 1/2-14 G 1/2-14 0.875 0.866 0.850 0.825 0.484 0.472 0.531 0.4723/4 (-12) 20 1 1/16-12 M27x2 3/4-14 G 3/4-14 1.063 1.063 1.060 1.041 0.609 0.591 0.719 0.6307/8 (-14) – 1 3/16-12 M30x2 3/4-14 G 3/4-14 1.188 1.181 1.060 1.041 0.719 0.709 0.719 0.6301 (-16) 25 1 5/16-12 M33x2 1-11 1/2 G 1-11 1.313 1.299 1.327 1.309 0.844 0.787 0.938 0.7871 1/4 (-20) 30 1 5/8-12 M42x2 1 1/4-11 1/2 G 1 1/4-11 1.625 1.654 1.672 1.650 1.078 1.024 1.25 0.9841 1/2 (-24) 38 1 7/8-12 M48x2 1 1/2-11 1/2 G 1 1/2-11 1.875 1.890 1.912 1.882 1.313 1.260 1.500 1.2602 (-32) 50 2 1/2-125) M60x2 2-11 1/2 – 2.500 2.362 2.387 – 1.575 1.575 1.772 –

Notes:1) Ports are in accordance with the standards listed below.

SAE J1926-1, ISO 6149-1, NPTF-SAE J476 and BSPP-ISO 1179-12) Pressure range covering all sizes shown is 2500 to 9000 PSI.3) Stud ends are in accordance with the standards listed below:

SAE J1926-2, ISO 6149-2, NPTF-SAE J476, and BSPP-1179-2 heavy (S) series.4) Not recommended for leak-free performance in hydraulic systems in any size for shape fittings (elbows, tees, etc.) and in sizes larger

than 3/4-14 for straight fittings.5) Not covered in SAE J1926-2.

Table A19 — Tube to Port Pairing for High Pressure Applications


A25FluidConnectors


AChoosing the TubeMaterial and TypeSelection of tube material depends on the fluid, corrosivenature of the service environment, the operating temperaturerange and the maximum operating pressure. The tube O.D.and wall thickness selection depends on the last four param-eters above and the maximum operating temperature.

A simple step-by-step approach to selecting the proper tubingis described below.

Table A21 describes several common tube types with theirrecommended operating temperature ranges, general applica-tion, and fitting compatibility. Based on the fluid system param-eters and media, select the appropriate tube type.

If media and/or service environment is different from thecommonly used ones listed in the general application column,please consult the Fluid Compatibility chart on the followingpage or contact the Tube Fittings Division.

Caution: When working with highly corrosivemedia, always consult the Tube Fittings Division.

Fluid CompatibilityThe fluid compatibility chart on the following page is intended asa guide only and is not to be considered as a sole selectioncriteria to use Parker Tube Fittings in a specific application or witha specific fluid. Other factors that must be considered include,but are not limited to: Fluid temperature, ambient temperature,system pressure (both operating and peak) and applicablestandards or regulations. For media not listed, please contactyour Parker representative or the Tube Fittings Division.

Protective Coatings on SteelProtective coatings such as electroplated zinc and cadmium1)

and zinc phosphate are usually applied to steel fittings forextending their useful service life in corrosive environments.Cadmium and zinc corrode sacrificially, protecting the steelsubstrate from normal atmospheric rusting due to the commonpresence of oxygen, moisture and acidic gases. They are,however, rapidly attacked by many fluids including thosecontaining acidic hydrogen and reactive fluorine, chlorine,bromine, iodine, and nitrogen. Zinc plating will further beattacked by strong bases or water with pH > 12. Zinc reactswith glycol based fire resistant fluids and forms a gelati-nous compound that can plug up filters and be harmfulotherwise, in a system with many zinc plated tube andhose fittings. Steel fittings with zinc phosphate coating orstainless steel fittings, along with brass fittings in low pressureapplications, are viable options.

The other option is to run the fluid through the system, withoutcomponents with moving parts in it, with an auxiliary powersource, to generate and flush the gelatinous compound. Thenre-connect all components, change filters and charge thesystem with new fluid.

Zinc phosphate coatings protect steel by covering its surfaceand will retard rusting as long as the inhibiting barrier is notbroken.

Caution: Where low toxicity and low corrosion arerequired, as in food or beverage applications, steelcoated with any form of zinc or other protective coat-ings is not recommended.

Selection of Materials

Notes:1) Cadmium is not allowed by SAE and ISO stardards for general

industrial and commercial use. Some military applications stillrequire cadmium plating. These requirements are met withspecial (non-standard) processing at extra cost.

http://www.parker.com/tfd/contact%20us.htm


A26FluidConnectors



Table A20 — Fluid Compatibility Chart


Fitting Material Seal Material

Ethylene FluorocarbonMedia Brass Steel 316 SS BUNA-N Propylene (e.g. ,Viton) Neoprene

Acetylene NR F S S S S FAir (oil free) @ 190° F S F S S S S SAir (oil free) @ 300° F S F S F F S FAir (oil free) @ 400° F S F S NR NR S NRAlcohol, Ethyl S NR NR NR S NR SAnimal Oils (Lard Oil) F F F S F S FAromatic Fuel - 50% ID ID ID F NR S NRAromatic Solvents ID ID F F ID S NRAsphalt NR NR S F NR S FASTM Oil #1 S S S S NR S SASTM Oil #2 S S S S NR S FASTM Oil #3 S S S S NR S NRASTM Oil #4 S S S F NR S NRATF Oil S S S S NR S FAutomotive Brake Fluid ID ID ID NR S NR FBenzene NR F NR NR NR S NRBrine (Sodium Chloride) NR NR S S S S SButane NR S S S NR S SCarbon Dioxide S F S S S S SCarbon Monoxide S S S S S S FChlorine (Dry) F F NR NR ID F FCompressed Air S F S S S S SCrude Oil NR F S F NR S NRCutting Oil ID S S S NR S FDiesel Fuel S S S S NR S NREthanol S NR NR NR S NR SEthers S S S NR F F NRFreon 11 S ID ID F NR F NRFreon 12 S S NR F NR S SFreon 22 S NR S NR NR NR SFuel Oil NR S S S NR S FGasoline S F S S NR S NRGas, Liquid Propane (LPG) S S S S NR S FGas, Natural F S S S NR S SHelium S S S S S S SHydraulic Oil, Petroleum Base S S S S NR S SHydraulic Oil, Water Base ID S S F S NR FHydrogen Gas S S S S S S SJet Fuel S S S S NR S NRKerosene S S S S NR S FLubricating Oil SAE 10, 20, 30, 40, 50 S S S S NR S FMethanol S S S S S NR SMIL-F-8192 (JP-9) S S S NR NR S NRMIL-H-5606 S S S S NR S FMIL-H-6083 S S S S NR S SMIL-H-7083 S S S S S F FMIL-H-8446 (MLO-8515) F S S F NR S SMil-L-2104 & 2104B S S S S NR S FMIL-L-7808 NR F S F NR S NRMineral Oil S S S S NR S FNitrogen S S S S S S SPetrolatum S S S S NR S FPetroleum Oil (<250° F) S S S S NR S FPropane S S S S NR S FR134A S S S NR S NR NRSea Water F NR S S S S FSkydrol 500, Type 2 NR S S NR S NR NRSkydrol 7000, Type 2 NR S S NR S F NRSoap Solutions NR NR S S S S FSteam (<400° F) F S S NR S NR NRStoddard Solvent F S S S NR S FTransmission Fluid (Type A) S S S S NR S FTrichloroethane ID F S NR NR S NRWater S F S S S F F

Codes:S = Satisfactory F = FairNR = Not recommended ID = Insufficient data


A27FluidConnectors


ATube and Fitting Material CompatibilityAs a general rule, tube and fitting materials should be the same.If different materials must be considered, the following chartcan be used as a general guide. Since operating conditionsdiffer with applications, this chart should be used only as aguide and not a firm recommendation. Before making a final

decision on material combination, it should be sufficientlytested under appropriate conditions to assure suitability for theintended application. For additional material combinations,contact the Tube Fittings Division.


Table A21 — Tube and Fitting Material Compatibility

Ratings Key: Fitting Materials Code:NR Not Recommended S SteelF Fair SS Stainless SteelG Good B BrassE Excellent M Monel

1) For highly corrosive media or service environment, contact the Tube Fittings Division.2) Requires different assembly procedure. Contact the Tube Fittings Division.3) Low temperature limit for stainless steel Ferulok fittings is -20°F (-30°C).4) For brazing only. Grade 4130 not recommended with Parflange process.5) For use with Parflange process only. Not recommended with brazing.6) Use depends on specific application. Contact the Tube Fittings Division.7) Applies to tube material.8) Comparable specifications to SAE.

Tube Material to Fitting & Material CompatibilitySeal-Lok Triple-Lok Ferulok Intrulok

ORFS 37° Flare Flareless FlarelessTube Max. Temperature (SAE J1453) (SAE J514) (SAE J514)

Material Specification Construction Condition Hardness Range7) Application S SS B S SS B M S SS M BSAE J524 E NR (6) G NR (6) NR E NR NR NR

(ASTM A179) (8) Seamless High pressureCarbon SAE J525 Welded & Fully HRB 72 -65° to 500°F hydraulic, air, & E NR (6) E NR (6) NR E NR NR NRSteel (ASTM A178) (8) Drawn Annealed -55° to 260°C some specialtyC-1010 SAE J356 Welded & Flash chemicals G NR (6) NR NR (6) NR G NR NR NR

ControlledAlloy Steel ASTM A519 Seamless -65° to 500°F High pressure E NR NR NR NR NR NR NR NR NR NR4130 -55° to 260°C hydraulics (4)Stainless ASTM A213 Seamless -425° to 1200°F High pressure, (6) E (6) (6) G (6) NR (6) E NR NRSteel ASTM A269 Fully HRB 90 -255° to 650°C high temperature,304 & 316 ASTM A249 Welded Annealed (3) or generally (6) E (6) (6) E (6) NR (6) E NR NR

ASTM A269 & Drawn corrosive media (1)SAE J528 Soft 60 Max. -325° to 400°F Low pressure,

Copper (ASTM B-75) (8) Seamless Annealed Rockwell 15T -200° to 205°C low temperature, E (6) E G (6) E NR G NR NR ETemper 0 water, oil & air (2)

T6 Temper HRB 56 Low pressure, low NR NR NR G NR NR NR E NR NR (6)Aluminum ASTM-B210 Seamless -325° to 400°F temperature water, (2)6061 0 & T4 Temper HRB 30 -200° to 205°C oil, air & some E NR NR G NR NR NR E NR NR (6)

specialty chemicals (5) (2)Fully -400° to 800°F Sour gas, marine &

Monel 400 ASTM-B165 Seamless Annealed HRB 70 -240° to 425°C general chemical NR (6) NR NR (6) NR E NR (6) E NRprocessing media

Nylon Extruded Flexible & -60° to 200°F Lube lines, NR NR NR NR NR NR NR G G G ESemi-Rigid -50° to 95°C chemical process (2) (2) (2)

controls, & airPolyethylene ASTM D-1248 Extruded Instrument -80° to 150°F Instrumentation NR NR NR NR NR NR NR G G G E

Grade -60° to 65°C lines (2) (2) (2)Instrument & 0° to 140°F General

PVC Extruded Laboratory -20° to 60°C purpose NR NR NR NR NR NR NR NR NR NR GGrade laboratory use

Very low pressure,PTFE Extruded -65° to 400°F high temperature, NR NR NR NR NR NR NR G G G G

& Cintered -55° to 205°C fuel, lube, chemical (2) (2) (2)& air applications



A28FluidConnectors



Corrosion of Base Metals in Contact

Electromotive or Galvanic Series for Metals

MagnesiumMagnesium alloysZinc (Parker steel fittings are zinc plated)BerilliumAluminum 5052, 3004, 3003, 1100, 6053CadmiumAluminum 2117, 2017, 2024Mild steel (1018), wrought ironLow alloy high strength steel, cast ironChrome iron (active)430 Stainless (active)302, 303, 321, 347, 410, 416, stainless steel (active)Ni-resist316, 317 stainless steel (active)Carpenter 20Cb-3 stainless (active)Aluminum bronze (CA 687)Hastelloy C (active) Inconnel 625 (active) Titanium (active)Lead/Tin solderLeadTinInconnel 600 (active)Nickel (active)60 Ni-15 Cr (active)80 Ni-20 Cr (active)Hastelloy B (active)Naval brass (CA 464), Yellow brass (CA 268)Red brass (CA 230), Admiralty brass (CA 443)Copper (CA 102)Maganese bronze (CA 675), Tin bronze (CA 903, 905)410, 416 Stainless (passive) Phospher bronze (CA 521, 524)Silicon bronze (CA 651, 655)Nickel silver (CA 732, 735, 745, 752, 754, 757, 764, 770, 794)Cupro Ni 90-10Cupro Ni 80-20430 Stainless steel (passive)Cupro Ni 70-30Nickel aluminum bronze (CA 630, 632)Monel 400, K500Silver solderNickel (passive)60 Ni 15 Cr (passive)Inconnel 600 (passive)80 Ni 20 Cr (passive)Chrome iron (passive)302, 303, 304, 321, 347 stainless stainless steel (passive)316, 317 stainless steel (passive) (Parker stainless steel fittings are passivated)Carpenter 20 Cb-3 stainless (passive), Incoloy 825SilverTitanium (passive), Hastelloy C & C276 (passive), Inconnel 625 (passive)GraphicZirconiumGoldPlatinum

+ Anodic(least noble)

corroded

- Cathodic(most noble)

protected

Ele

ctric

cur

rent

flow

s fr

om p

lus

to m

inus

Dire

ctio

n of

atta

ck

Table A22 — Electromotive or Galvanic Series for Metals

apart; hence, when in contact, the potential for corrosion is veryhigh. Aluminum, being more anodic metal, will corrode in thiscombination.

As a general guideline, if the metals are half the length of thechart or more apart, the combination should be avoided. Also,it is not a good idea to combine an anodic metal part with thincross section, such as thin wall tubing, with a cathodic or lessanodic metal part of a heavy cross section, such as a fitting.

Example: A thin wall brass tube with steel fitting is a better,although not ideal, combination than a thin wall steel tube withbrass fitting.

The susceptibility of different base metals to corrosion while incontact, depends upon the difference between the contactpotentials, or the electromotive voltages of the metals involved.The greater the potential difference is, the greater is thetendency for corrosion. The metal with the higher potentialforms the anode and is corroded. In other words, the larger theseparation distance in the electromotive chart between the twometals in contact, the higher the contact potential and chancesfor corrosion. For example, zinc and aluminum are very shortdistance apart in the chart; therefore potential for corrosionwhen these two metals are in contact is very low. On the otherhand, aluminum and passivated 316 stainless steel are far



A29FluidConnectors


AO-Ring Material SelectionStandard O-rings supplied with Parker tube fittings and adapt-ers are 90 durometer hard nitrile (Buna-N) Parker compound#N0552. These O-rings are well suited for most industrialhydraulic and pneumatic systems. They have high extrusionresistance making them suitable for very high pressure staticapplications. Optional high temperature fluorocarbon (e.g.,Viton), Parker compound #V0894, is also available for highertemperature specifications.

Table A23 — O-Ring Selection

1) These Parker “Chromassure” color assurance O-rings are available from the Parker Hannifin O-Ring Division,(606) 269-2351. They help eliminate assembly errors, reduce warranty costs and liability risks, and assure safetyin aftermarket business.

2) Formerly SAE Type I.3) Formerly SAE Type II.4) Formerly SAE Type III.5) “FKM” is the ASTM designation for fluorocarbon. Its ISO designation is “FPM”.6) Standard compounds available from stock.

O-rings for other than normal hydraulic media or higher tem-perature applications can be selected from the following chart.The chart should be used only as a general guide. Beforemaking final selection for a given application, it is recom-mended that appropriate tests be conducted to assure compat-ibility with the fluid, temperature, pressure and other environ-mental conditions.

For fluids not shown in the chart, please contact the TubeFittings Division.


PolymerAbbreviated

Name

Parker Compound

No. Color

SAE J515 Type

Hardness Shore "A"

Temperature Range

Recommended For

Not Recommended

ForNitrile-Butadiene NBR (Nitrile) N0552 Black CH2) 906) -30° to 250° F Petroleum base oils and Phosphate ester baseNitrile-Butadiene NBR (Nitrile) N0674 Black - 70 -30° to 250° F fluids, mineral oils, ethylene hydraulic fluids, auto-Nitrile-Butadiene NBR (Nitrile) N0103 Black - 70 -65° to 225° F glycol base fluids, silicone motive brake fluids,

Nitrile-Butadiene NBR (Nitrile) N1059 Black CH2) 90 -30° to 275° F and di-ester base lubricants, strong acids, ozone, (Low compression air, water under 150°F, and freons, ketones, halo- set) natural gas. genated hydrocarbons,

and methanol.Nitrile-Butadiene NBR (Nitrile) N0508 Black - 75 -35° to 250° F Meets FDA requirements for

food products.

Nitrile-Butadiene NBR (Nitrile) N0756 Black - 756) -65° to 275°F CNG Applications

Ethylene-Propylene EPDM E0540 Black CA3) 80 -65° to 275° F Phosphate ester base Petroleum base oils

Ethylene-Propylene EPDM E0893 Purple1) CA3) 80 -65° to 275° F hydraulic fluids, hot water, and di-ester base

steam to 400°F, silicone oils lubricants.

and greases, dilute acidsand alkalis, ketones, alcohols and automotive brake fluids.

Neoprene CR C0873 Black - 70 -45° to 250° F Refrigerants (freons, Phosphate ester fluidsNeoprene CR C0944 Red1) - 70 -45° to 250° F ammonia), high aniline point and ketones.

petroleum oils, mild acids,and silicate ester lubricants.

Fluorocarbon FKM5) V0747 Black - 75 -15° to 400° F Petroleum base oils and Ketones, skydrol fluids,

(e.g., Viton) or V0884 Brown1) - 75 -15° to 400° F fluids, some phosphate amines (VDMH),

FPM V0894 Brown1) HK4) 906) -15° to 400° F ester base fluids, silicone anhydrous ammonia,and silicate ester base low molecular weightlubricants, di-ester base esters and ethers, andlubricants, acids and hot hydrofluoric orhalogenated hydrocarbons. chlorosulfonic acids.

Silicone Si S0604 Rust1) - 70 -65° to 450° F Dry heat (air to 400°F) and Most petroleum fluids,high aniline point oils. ketones, water and

steam.


A30FluidConnectors



Determining Tube Sizefor Hydraulic SystemsProper tube material, type and size for a given application andtype of fitting is critical for efficient and trouble free operation ofthe fluid system. Selection of proper tubing involves choosingthe right tube material, and determining the optimum tube size(O.D. and wall thickness).

Proper sizing of the tube for various parts of a hydraulic systemresults in an optimum combination of efficient and cost effec-tive performance.

A tube that is too small causes high fluid velocity, which hasmany detrimental effects. In suction lines, it causes cavitationwhich starves and damages pumps. In pressure lines, it causeshigh friction losses and turbulence, both resulting in highpressure drops and heat generation. High heat accelerateswear in moving parts and rapid aging of seals and hoses, allresulting in reduced component life. High heat generation alsomeans wasted energy, and hence, low efficiency.

Too large of a tube increases system cost. Thus, optimum tubesizing is very critical. The following is a simple procedure forsizing the tubes.

Step 1: Determine Required Flow Diameter

Use Table A29 to determine recommended flow diameter forthe required flow rate and type of line.

The table is based on the following recommended flow veloci-ties:

Pressure lines — 25 ft./sec. or 7.62 meters/sec.Return lines — 10 ft./sec. or 3.05 meters/sec.Suction lines — 4 ft./sec. or 1.22 meters/sec.

If you desire to use different velocities than the above, use oneof the following formulae to determine the required flow diameter.

OR

Tube I.D. (in.) = 0.64Flow in GPM

Velocity in ft./sec.

Tube I.D. (mm) = 4.61Flow in liters per minuteVelocity in meters/sec.

Step 2: Determine Tube O.D. and Wall Thickness

Using Table A30, determine the tube O.D. and wall thicknesscombination that satisfies the following two conditions:A. Has recommended design pressure equal to or higher

than maximum operating pressure.B. Provides tube I.D. equal to or greater than required flow

diameter determined earlier.

Design pressure values in Table A30 are based on the severityof service rating “A” (design factor of 4) in Table A26, andtemperature derating factor of 1 in Table A27.

If more severe operating conditions are involved, the values inTable A30 should be multiplied by appropriate derating factorsfrom Tables A26 and A27 before determining the tube O.D. andwall thickness combination. Contact the Tube Fittings Divisionwhen in doubt.

Allowable design stress levels and formula used to arrive at thedesign pressure values are given in the following chart. Valuesin Table A24 are for fully annealed tubing.

Table A24 — Design Stress Values

Design Pressure Formula (LAME'S)D2 - d2

D2 + d2

D = Outside diameter of tube, ind = Inside diameter of tube (D-2T), inP = Recommended design pressure, psiS = Allowable stress for design factor of 4, psiT = Tube wall thickness, in

Table A25 — Design Pressure Formula

For thin wall tubes (D/T ≥ 10) the following formula may beUsed: P = 2ST/D

P = S ( ) where:

Selection of Tubing

Material and Type

Allowable Design Stress for Design Factor of 4 at 72 Degrees F

Steel C-1010 12,500 PSI

Stainless Steel 304 & 316

18,800 PSI

Alloy Steel C-4130 18,800 PSI

Copper, K or Y 6,000 PSI

Aluminum 6061-T6 10,500 PSI

Monel, 400 17,500 PSI



A31FluidConnectors


A1. Selecting Tube Material: Table A21 indicates that carbon

steel, C-1010, tubing would meet the media, operatingtemperature range, and maximum operating pressure(high) requirements.

2. Sizing the Tube: From Table A29, the recommended flowdiameters for various lines for 10 GPM flow rate are: 0.405for pressure line, 0.639 for return line, and 1.012 forsuction line.Now, using Table A30, we need to find tubes with insidediameters (I.D.) equal to or larger than the above flowdiameters, and wall thicknesses appropriate for designpressures of 3500 psi minimum for the pressure line andabout 500 psi for return and suction lines. Since deratingfactors for Severity of Service (Table A26) and Max.Operating Temperature (Table A27) are both 1, designpressure values in Table A30 do not need to be reduced.

Matching tube I.D.s and design pressures in Table A30 forabove conditions, we find:A) For the pressure line, we would choose 5/8" O.D. X

.083" wall tubing. The .095" and .109" wall tubeswould also be satisfactory if .083" wall is not readilyavailable.

B) For the return line, either 3/4" X .035" or 3/4" X .049"would meet the requirements. If Ferulok fittings arebeing used, we will need to go to 3/4" X .065" because.065" is the smallest wall thickness recommended for3/4" O.D. tubing used with Ferulok fittings in TableA14. This reduces the flow diameter about 3% belowthe recommended value, but is still in the acceptablerange. The alternative is to go to 7/8" O.D. X .072" walltubing, which is way too large.

The design factor is generally applied to ultimate strength ofmaterial (or burst pressure of tubing) to provide a measure ofsafety against the unknowns in material and operating condi-tions. The derating factors listed here should be applied directlyto the design pressure values in Table A30 to arrive at maxi-mum recommended working pressures (i.e., multiply values inTable A30 by these derating factors).

Besides severity of service, high operating temperature alsoreduces allowable working pressure of the tubing. Tempera-ture derating factors for various tube materials are given inTable A27. Where applicable, derating factors for severity ofservice and temperature should be applied to the designpressure values in Table A30 to arrive at the maximum recom-mended working pressure.

Example:Combined derating factor for 316SS tubing for B (severe)service and 500° F. operation is .67 X .9 = .603

Tube Selection Example:

To select tube material and tube sizes for pressure, return andsuction lines for a hydraulic power unit with the followingoperating parameters known:

Type of fluid: Petroleum base hydraulic fluid

Operating temperature range: -20° to +140°F.Maximum operating pressure: 3500 psiMaximum flow rate through each line: 10 GPM

Severity of service: A (normal)

Table A26 — Severity of Service Design and Derating Factors

Table A27 — Temperature Derating Factors* for Tubes

* The derating factors are based on allowable design stressvalues at various temperatures per ASME B31.1 code forpressure piping (1986).

1) Brazing to attach sleeve can be used for all wall thicknesses. Forflanging tool availability, see page N28.

Table A28 — Recommended “Min./Max” Tube Wall Thicknessfor Common Fittings

C) For the suction line, we can use any one of thefollowing tubes: 1-1/4" O.D. X .049" to .083" wall tubefor Triple-Lok or Seal-Lok fittings and 1-1/4" O.D. X.095" wall tube for Ferulok fittings.

One final consideration in choosing the right wallthickness for tubing is bending. If bending without theuse of a mandrel is desired, then wall thicknessof less than 7% of tube O.D. should not be used.

Selection of Tubing

Severity of Service Description

Design Factor

Derating Factor

A (Normal)Moderate mechanical and hydraulic shocks. 4.00 1.00

B (Severe)Severe hydraulic shocks and mechanical strain. 6.00 0.67

C (Hazardous)Hazardous application with severe service conditions. 8.00 0.50

Maximum Operating

Steel C-1010

Stainless Steel Monel

Temperature (degrees F)

and C-4130 304 316 Copper

Aluminum 6061-T6 Type 400

100 1.00 1.00 1.00 1.00 1.00 1.00150 1.00 0.91 1.00 0.85 1.00 0.97200 1.00 0.84 1.00 0.80 1.00 0.94250 1.00 0.79 1.00 0.80 0.94 0.91300 1.00 0.75 1.00 0.78 0.80 0.88350 0.99 0.72 0.99 0.67 0.60 0.86400 0.98 0.69 0.97 0.50 0.43 0.85500 0.96 0.65 0.90 0.84600 0.61 0.85 0.84700 0.59 0.82 0.84800 0.57 0.80 0.83900 0.54 0.781000 0.52 0.771100 0.47 0.621200 0.32 0.37

Tube MaterialSteel

St. Steel Steel

Steel Alloy Steel

St. Steel Copper

SizeCopper

AluminumSt. Steel Monel

Copper Monel

Aluminum Plastics

O.D. Inches

Dash Number

SAE 37° Flare

Triple-Lok

SAE Flareless Ferulok

SAE O-ring Face Seal

Seal-Lok 1) Intru-Lok1/8 -2 .010 - .035 .010 - .035 — .012 - .028

3/16 -3 .010 - .035 .020 - .049 — .012 - .0351/4 -4 .020 - .065 .028 - .065 .020 - .083 .020 - .049

5/16 -5 .020 - .065 .028 - .065 .020 - .095 .020 - .0653/8 -6 .020 - .065 .035 - .095 .020 - .109 .028 - .0651/2 -8 .028 - .083 .049 - .120 .028 - .148 .035 - .0835/8 -10 .035 - .095 .058 - .120 .035 - .134 .035 - .0833/4 -12 .035 - .109 .065 - .120 .035 - .148 .035 - .0957/8 -14 .035 - .109 .072 - .120 — .049 - .0951 -16 .035 - .120 .083 - .148 .035 - .188 .049 - .120

1 1/4 -20 .049 - .120 .095 - .188 .049 - .2201 1/2 -24 .049 - .120 .095 - .220 .049 - .250

2 -32 .058 - .134 .095 - .220 .065 - .220

A32FluidConnectors



Table A29 — Recommended Flow Diameters

* LPM = Liters Per Minute

Selection of Tubing

Maximum Recommended Flow Diameter in Inches Maximum Recommended Flow Diameter in MillimetersFlow Rate

GPMPressure

Lines Return LinesSuction Lines

Flow Rate LPM*

Pressure Lines Return Lines

Suction Lines

0.25 0.064 0.101 0.160 1 1.670 2.640 4.1800.50 0.091 0.143 0.226 2 2.362 3.734 5.9110.75 0.111 0.175 0.277 3 2.893 4.573 7.2401.00 0.128 0.202 0.320 4 3.340 5.280 8.3601.25 0.143 0.226 0.358 5 3.734 5.903 9.3471.50 0.157 0.247 0.392 6 4.091 6.467 10.2391.75 0.169 0.267 0.423 7 4.418 6.985 11.0592.00 0.181 0.286 0.453 8 4.723 7.467 11.8232.50 0.202 0.319 0.506 9 5.010 7.920 12.5403.00 0.222 0.350 0.554 10 5.281 8.348 13.2183.50 0.239 0.378 0.599 12 5.785 9.145 14.4804.00 0.256 0.404 0.640 14 6.249 9.878 15.6404.50 0.272 0.429 0.679 16 6.680 10.560 16.7205.00 0.286 0.452 0.716 18 7.085 11.201 17.7345.50 0.300 0.474 0.750 20 7.468 11.806 18.6946.00 0.314 0.495 0.784 22 7.833 12.383 19.6066.50 0.326 0.515 0.816 24 8.181 12.933 20.4787.00 0.339 0.534 0.847 26 8.515 13.461 21.3147.50 0.351 0.553 0.876 28 8.837 13.970 22.1188.00 0.362 0.571 0.905 30 9.147 14.460 22.8958.50 0.373 0.589 0.933 32 9.447 14.934 23.6469.00 0.384 0.606 0.960 34 9.738 15.394 24.3739.50 0.395 0.623 0.986 36 10.020 15.840 25.08010.00 0.405 0.639 1.012 38 10.295 16.274 25.76711.00 0.425 0.670 1.061 40 10.562 16.697 26.43712.00 0.443 0.700 1.109 45 11.203 17.710 28.04013.00 0.462 0.728 1.154 50 11.809 18.668 29.55714.00 0.479 0.756 1.197 55 12.385 19.579 31.00015.00 0.496 0.782 1.239 60 12.936 20.449 32.37816.00 0.512 0.808 1.280 65 13.464 21.284 33.70017.00 0.528 0.833 1.319 70 13.972 22.088 34.97218.00 0.543 0.857 1.358 75 14.463 22.863 36.20019.00 0.558 0.880 1.395 80 14.937 23.613 37.38720.00 0.572 0.903 1.431 85 15.397 24.340 38.53822.00 0.600 0.947 1.501 90 15.843 25.045 39.65524.00 0.627 0.990 1.568 95 16.277 25.732 40.74226.00 0.653 1.030 1.632 100 16.700 26.400 41.80028.00 0.677 1.069 1.693 110 17.515 27.689 43.84030.00 0.701 1.106 1.753 120 18.294 28.920 45.79032.00 0.724 1.143 1.810 130 19.041 30.101 47.65934.00 0.746 1.178 1.866 140 19.760 31.237 49.45836.00 0.768 1.212 1.920 150 20.453 32.333 51.19438.00 0.789 1.245 1.973 160 21.124 33.394 52.87340.00 0.810 1.278 2.024 170 21.774 34.421 54.50142.00 0.830 1.309 2.074 180 22.405 35.419 56.08144.00 0.849 1.340 2.123 190 23.019 36.390 57.61746.00 0.868 1.370 2.170 200 23.617 37.335 59.11448.00 0.887 1.399 2.217 220 24.770 39.158 61.99950.00 0.905 1.428 2.263 240 25.872 40.899 64.75655.00 0.949 1.498 2.373 260 26.928 42.569 67.40060.00 0.991 1.565 2.479 280 27.944 44.176 69.94565.00 1.032 1.629 2.580 300 28.925 45.726 72.40070.00 1.071 1.690 2.677 320 29.874 47.226 74.77475.00 1.109 1.749 2.771 340 30.793 48.679 77.07580.00 1.145 1.807 2.862 360 31.686 50.090 79.31085.00 1.180 1.862 2.950 380 32.554 51.463 81.48390.00 1.214 1.916 3.036 400 33.400 52.800 83.60095.00 1.248 1.969 3.119 450 35.426 56.003 88.671

100.00 1.280 2.020 3.200 500 37.342 59.032 93.468110.00 1.342 2.119 3.356 550 39.165 61.913 98.030120.00 1.402 2.213 3.505 600 40.906 64.667 102.389130.00 1.459 2.303 3.649 650 42.577 67.307 106.570140.00 1.515 2.390 3.786 700 44.184 69.848 110.592150.00 1.568 2.474 3.919 750 45.735 72.299 114.474160.00 1.619 2.555 4.048 800 47.235 74.670 118.228170.00 1.669 2.634 4.172180.00 1.717 2.710 4.293190.00 1.764 2.784 4.411200.00 1.810 2.857 4.525


A33FluidConnectors


A

* Sizes corresponding to the design pressures in bold, for respective materials, are commonly available.Remaining sizes may not be readily available.

Table A30 — Recommended Design Pressures for Tubes

1) These values must be adjusted for severity of service and maximum operating temperatureby multiplying with derating factors from Tables A26 and A27.

Selection of Tubing

Inch Tubes Metric Tubes

Design Pressure1) (4:1 Design Factor) PSI

Design Pres.1)

Bar

Tube O.D. (in)

Wall Thick (in)

Tube I.D. (in)

Steel C-1010

Alloy Steel

C-4130

Stainless Steel

304 & 316* CopperAluminum

6061-T6Monel

400

Tube O.D. (mm)

Wall Thick (mm)

Tube I.D.

(mm)Steel Low

Carbon0.125 0.010 0.105 2150 3250 3250 1050 1800 3000 4 0.5 3.0 313*0.125 0.020 0.085 4600 6900 6900* 2200 3850 6450 4 0.8 2.5 4090.125 0.028 0.069 6650 10000 10000* 3200 5600 9350 4 1.0 2.0 522*0.125 0.035 0.055 8450* 12700 12700* 4050 7100 11800 5 0.8 3.5 3760.188 0.010 0.168 1400 2100 2100 650 1200 1950 5 1.0 3.0 432*0.188 0.020 0.148 2950 4450 4450 1400 2450 4100 6 0.8 4.5 3330.188 0.028 0.132 4250 6400 6400 2050 3600 5950 6 1.0 4.0 389*0.188 0.035 0.118 5450* 8200 8200* 2600 4600 7650 6 1.5 3.0 549*0.188 0.049 0.090 7850 11800 11800 3750 6600 11000 6 2.0 2.0 6920.250 0.020 0.210 2150 3250 3250* 1050 1800 3000 6 2.3 1.5 7570.250 0.028 0.194 3100* 4650 4650* 1500 2600 4350 8 1.0 6.0 333*0.250 0.035 0.180 3950* 5950 5950* 1900 3350 5550 8 1.5 5.0 431*0.250 0.049 0.152 5750* 8650 8650* 2750 4850 8050 8 2.0 4.0 549*0.250 0.058 0.134 6900 10400 10400 3300 5800 9700 8 2.5 3.0 6580.250 0.065 0.120 7800 11750 11750* 3750 6550 10950 10 1.0 8.0 282*0.250 0.083 0.084 9950 15000 15000 4800 8350 13950 10 1.5 7.0 373*0.313 0.020 0.273 1700 2550 2550 800 1450 2400 10 2.0 6.0 478*0.313 0.028 0.257 2450 3650 3650 1150 2050 3400 10 2.5 5.0 5760.313 0.035 0.243 3100* 4650 4650* 1500 2600 4350 10 3.0 4.0 6660.313 0.049 0.215 4500* 6750 6750* 2150 3750 6300 12 1.0 10.0 235*0.313 0.058 0.197 5400 8150 8150 2600 4550 7600 12 1.5 9.0 353*0.313 0.065 0.183 6150* 9250 9250* 2950 5150 8600 12 2.0 8.0 409*0.313 0.072 0.169 6850 10350 10350 3300 5750 9600 12 2.5 7.0 4950.313 0.083 0.147 8000 12050 12050 3850 6700 11200 12 3.0 6.0 5760.313 0.095 0.123 9150 13800 13800 4400 7700 12850 12 3.5 5.0 6610.375 0.020 0.335 1400 2100 2100 650 1200 1950 14 1.0 12.0 2010.375 0.028 0.319 2000 3000 3000* 950 1700 2800 14 1.5 11.0 302*0.375 0.035 0.305 2550* 3850 3850* 1200 2150 3550 14 2.0 10.0 403*0.375 0.049 0.277 3650* 5550 5550* 1750 3100 5150 14 2.5 9.0 434*0.375 0.058 0.259 4450* 6650 6650 2100 3700 6200 14 3.0 8.0 5070.375 0.065 0.245 5000* 7550 7550* 2400 4200 7050 14 3.5 7.0 6760.375 0.072 0.231 5600 8450 8450 2700 4700 7850 14 4.0 6.0 6410.375 0.083 0.209 6550 9900 9900 3150 5500 9200 15 1.0 13.0 188*0.375 0.095 0.185 7600 11450 11450 3650 6400 10650 15 1.5 12.0 282*0.375 0.109 0.157 8750 13200 13200 4200 7350 12300 15 2.0 11.0 376*0.500 0.028 0.444 1500 2200 2200* 700 1250 2050 15 2.5 10.0 4090.500 0.035 0.430 1850* 2800 2800* 900 1550 2600 15 3.0 9.0 4780.500 0.049 0.402 2700* 4050 4050* 1300 2250 3750 16 1.0 14.0 1760.500 0.058 0.384 3250 4850 4850 1550 2700 4500 16 1.5 13.0 264*0.500 0.065 0.370 3650* 5500 5500* 1750 3050 5100 16 2.0 12.0 353*0.500 0.072 0.356 4100 6150 6150 1950 3450 5750 16 2.5 11.0 386*0.500 0.083 0.334 4800* 7200 7200* 2300 4000 6700 16 3.0 10.0 452*0.500 0.095 0.310 5550* 8350 8350 2650 4650 7800 18 1.0 16.0 1570.500 0.109 0.282 6450 9750 9750 3100 5450 9050 18 1.5 15.0 235*0.500 0.120 0.260 7200 10800 10800* 3450 6050 10050 18 2.0 14.0 313*0.500 0.134 0.232 8050 12150 12150 3850 6800 11300 18 2.5 13.0 3920.500 0.148 0.204 8950 13450 13450 4300 7500 12500 18 3.0 12.0 4090.500 0.188 0.124 11050 16600 16600 5300 9300 15450 20 1.5 17.0 2120.625 0.028 0.569 1150 1750 1750 550 1000 1650 20 2.0 16.0 282*0.625 0.035 0.555 1500* 2200 2200* 700 1250 2050 20 2.5 15.0 353*0.625 0.049 0.527 2100* 3200 3200* 1000 1750 2950 20 3.0 14.0 373*0.625 0.058 0.509 2550 3800 3800 1200 2150 3550 20 3.5 13.0 4260.625 0.065 0.495 2850* 4300 4300* 1350 2400 4000 20 4.0 12.0 4780.625 0.072 0.481 3200 4800 4800 1550 2700 4500 22 1.0 20.0 1280.625 0.083 0.459 3750* 5650 5650 1800 3150 5250 22 1.5 19.0 192*0.625 0.095 0.435 4350* 6550 6550 2100 3650 6100 22 2.0 18.0 266*0.625 0.109 0.407 5050 7600 7600 2450 4250 7100 22 2.5 17.0 3200.625 0.120 0.385 5600 8450 8450* 2700 4700 7850 22 3.0 16.0 3850.625 0.134 0.357 6350 9550 9550 3050 5350 8900 25 2.0 21.0 226*0.750 0.035 0.680 1200* 1850 1850* 600 1050 1700 25 2.5 20.0 282*0.750 0.049 0.652 1750* 2600 2600* 850 1450 2450 25 3.0 19.0 338*0.750 0.058 0.634 2100 3150 3150 1000 1750 2900 25 4.0 17.0 3940.750 0.065 0.620 2350* 3550 3550* 1150 1950 3300 25 4.5 16.0 4370.750 0.072 0.606 2650 3950 3950 1250 2200 3700 25 5.0 15.0 4780.750 0.083 0.584 3050* 4600 4600 1450 2550 4300 28 1.5 25.0 151*0.750 0.095 0.560 3550* 5350 5350* 1700 3000 4950 28 2.0 24.0 201*

A34FluidConnectors


4300 Catalog General TechnicalSelection of Tubing

* Sizes corresponding to the design pressures in bold, for respective materials, are commonly available.Remaining sizes may not be readily available.

Table A30 — Recommended Design Pressures for Tubes

1) These values must be adjusted for severity of service and maximum operating temperatureby multiplying with derating factors from Tables A26 and A27.

Inch Tubes Metric Tubes

Design Pressure1) (4:1 Design Factor) PSI

Design Pres.1)

Bar

Tube O.D. (in)

Wall Thick (in)

Tube I.D. (in)

Steel C-1010

Alloy Steel

C-4130

Stainless Steel

304 & 316* CopperAluminum

6061-T6Monel

400

Tube O.D. (mm)

Wall Thick (mm)

Tube I.D.

(mm)Steel Low

Carbon0.750 0.109 0.532 4150 6200 6200 2000 3450 5800 28 2.5 23.0 2520.750 0.120 0.510 4600* 6900 6900* 2200 3850 6450 28 3.0 22.0 3020.750 0.134 0.482 5200 7800 7800 2500 4350 7250 28 4.0 20.0 4030.750 0.148 0.454 5800 8700 8700 2800 4850 8100 28 5.0 18.0 4340.750 0.188 0.374 7500 11300 11300 3600 6300 10550 30 2.0 26.0 1880.875 0.035 0.805 1050 1550 1550 500 850 1450 30 2.5 25.0 235*0.875 0.049 0.777 1500* 2200 2200* 700 1250 2050 30 3.0 24.0 282*0.875 0.058 0.759 1750 2650 2650 850 1500 2450 30 4.0 22.0 376*0.875 0.065 0.745 2000* 3000 3000* 950 1650 2800 30 5.0 20.0 4090.875 0.072 0.731 2200 3350 3350 1050 1850 3100 35 2.0 31.0 161*0.875 0.083 0.709 2600 3900 3900 1250 2200 3650 35 2.5 30.0 2010.875 0.095 0.685 3000 4500 4500 1450 2500 4200 35 3.0 29.0 242*0.875 0.109 0.657 3500 5250 5250 1650 2950 4900 35 4.0 27.0 3220.875 0.120 0.635 3900 5850 5850 1850 3250 5450 35 5.0 25.0 4030.875 0.134 0.607 4400 6600 6600 2100 3700 6150 35 6.0 23.0 4190.875 0.148 0.579 4900 7350 7350 2350 4100 6850 38 2.5 33.0 1861.000 0.035 0.930 900 1350 1350* 450 750 1250 38 3.0 32.0 2231.000 0.049 0.902 1300* 1950 1950* 600 1100 1800 38 4.0 30.0 297*1.000 0.058 0.884 1550 2300 2300 750 1300 2150 38 5.0 28.0 371*1.000 0.065 0.870 1750* 2600 2600* 850 1450 2400 38 6.0 26.0 3901.000 0.072 0.856 1950 2900 2900 950 1600 2700 38 7.0 24.0 4461.000 0.083 0.834 2250* 3400 3400* 1100 1900 3150 42 2.0 38.0 134*1.000 0.095 0.810 2600* 3900 3900* 1250 2200 3650 42 3.0 36.0 201*1.000 0.109 0.782 3000* 4550 4550 1450 2550 4200 42 4.0 34.0 2691.000 0.120 0.760 3350* 5050 5050* 1600 2800 47001.000 0.134 0.732 3800 5700 5700 1800 3150 53001.000 0.148 0.704 4200 6350 6350 2000 3550 59001.000 0.156 0.688 4450 6700 6700 2150 3750 62501.000 0.188 0.624 5500 8250 8250 2650 4600 77001.000 0.220 0.560 6550 9800 9800 3150 5500 91501.250 0.049 1.152 1000 1550 1550* 500 850 14501.250 0.058 1.134 1200 1850 1850 600 1000 17001.250 0.065 1.120 1350* 2050 2050* 650 1150 19001.250 0.072 1.106 1500 2300 2300 750 1300 21501.250 0.083 1.084 1750 2650 2650* 850 1500 25001.250 0.095 1.060 2050* 3050 3050 1000 1700 28501.250 0.109 1.032 2350 3550 3550 1150 2000 33001.250 0.120 1.010 2650* 3950 3950* 1250 2200 37001.250 0.134 0.982 2950 4450 4450 1400 2500 41501.250 0.148 0.954 3300 4950 4950 1600 2750 46001.250 0.156 0.938 3500 5250 5250 1700 2950 49001.250 0.188 0.874 4300 6450 6450 2050 3600 60001.250 0.220 0.810 5100 7700 7700 2450 4300 47501.500 0.065 1.370 1150* 1700 1700* 550 950 16001.500 0.072 1.356 1250 1900 1900 600 1050 17501.500 0.083 1.334 1450 2200 2200 700 1250 20501.500 0.095 1.310 1700* 2550 2550* 800 1400 23501.500 0.109 1.282 1950 2950 2950 950 1650 27501.500 0.120 1.260 2150* 3250 3250 1050 1800 30001.500 0.134 1.232 2450 3650 3650 1150 2050 34001.500 0.148 1.204 2700 4050 4050 1300 2250 38001.500 0.156 1.188 2850 4300 4300 1350 2400 40001.500 0.188 1.124 3500 5300 5300 1700 2950 49001.500 0.220 1.060 4150 6300 6300 2000 3500 58501.500 0.250 1.000 4800 7250 7250 2300 4050 67502.000 0.065 1.870 850* 1250 1250* 400 700 11502.000 0.072 1.856 950 1400 1400 450 800 13002.000 0.083 1.834 1100 1600 1600 500 900 15002.000 0.095 1.810 1250* 1850 1850 600 1050 17502.000 0.109 1.782 1450* 2150 2150 700 1200 20002.000 0.120 1.760 1600 2400 2400 750 1350 22002.000 0.134 1.732 1800 2700 2700 850 1500 25002.000 0.148 1.704 2000 3000 3000 950 1650 28002.000 0.156 1.688 2100 3150 3150 1000 1750 29502.000 0.188 1.624 2550 3850 3850 1250 2150 36002.000 0.220 1.560 3050 4600 4600 1450 2550 42502.000 0.250 1.500 3500 5250 5250 1700 2950 49002.000 0.281 1.438 4000 6000 6000 1900 3350 5550


A35FluidConnectors


APlumbing andAssembly HintsEven after choosing the appropriate type fitting for your appli-cation, there are certain instances when a particular style hasadvantages over others.

1. Straight thread adjustable elbows and tees haveseveral advantages over pipe threaded ones:

Adjustable straight thread connections:• permit exact positioning

• provide leak free joint• eliminate distortion and cracking of boss due to over-

tightening

• are easier to maintain

Fig. A2 — Adjustable Straight ThreadAllows for 360° Positioning of Fitting

As a general practice, the use of pipe thread fittings should beavoided wherever possible. They are susceptible to fatiguefailure in the pipe thread area, loosening due to temperaturefluctuations, galling in the case of stainless steel and aluminumand also system contamination from the various sealantswhich are generally used to affect a seal.

2. Swivel nut fitting should be used with a straight connec-tor to allow for connections in tight spaces.

Swivel end fittings can be used with a straight connector whenspace limitations will not permit full rotation of an elbow or teefitting.

The combination in Fig. A4 can also be used to stack tube linesor provide clearance for ports that are relatively close andwithin the same plane.

Fig. A3 — Swivel Nut Fitting Fig. A4 — Swivel EndUsed with Straight Connector Fitting with Straight Connec-in Tight Space tor Provides Clearance

Above Regular Elbow

3. Use reducers/expanders and jump size fittings.

There are some instances when it becomes necessary toconnect tube lines of different sizes or tube lines to ports ofdifferent sizes. This can be accomplished by using either tubereducers, port expanders, port reducers, or jump size fittings.Achieving the reduction or enlargement is the main concern,but you should try to use the minimum number of jointspossible.

4. Use conversion fittings and adapters.

There are instances when it becomes necessary to use con-version adapters for connecting a fitting to a port with differentstyle threads, for example, UNF thread fitting to a metric threadport. There are also some instances when it is necessary toconnect tube ends or hose ends with different style termina-tions to one another or to a fitting. This can be achieved byusing conversion fittings.

5. Use other adapters and fittings for special applica-tions.

Fig. A6 — F5HA for Close Coupling of Components with TwoSAE Straight Thread Ports

Fig. A5 — LHB3 Simplifies Tube-to-Tube Connection

Tube Flanged or Brazed to Sleeve

Tube Brazed to LHB3

LHB3

Tube Nut

Routing and Assembly

A36FluidConnectors



Assembly Heights andMinimum ClearancesThere are dimensions given on the product drawings in theindividual product sections that can be used for calculatingassembly heights and minimum clearances.

For example:Take a C6L (90° swivel elbow) and connect it to a F5L(straight thread connector) which is threaded into an SAEstraight thread port. The center-line distance above themanifold to the connecting tube may be calculated asHH + AAA from product drawings.

Fig. A10 — Assembly Dimensions

The minimum clearance required between the manifold sur-face and the top of the fitting may be calculated by adding HHfor the connector to AAA for the 90° elbow to U which is half thedistance across the hex points on the tube nut (page A37).

Fig. A7 — Metric Sleeve Fig. A8 — Long ElbowAdapts Metric Tube to (CC5L) Stacks AboveStandard Seal-Lok Regular Elbow (C5L)

Fig. A9 — Mountie Used with Triple-Lok for Anchoring TubeLines

Fig. A11 — Requires: Fig. A12 — Requires: LargerMinimum swing clearance, swing clearance, moresimple adapter, and more expensive adapter, and lessexpensive tube or hose expensive tube or hoseassembly. assembly. Results in more

compact assembly. Good fortight quarters.

Bleeding Hydraulic SystemsTrapped air in a hydraulic system is one of the major contribu-tors to inefficient operation. It is therefore desirable to bleed-offthe air from the system. But, with fittings using elastomericseals, the O-ring can extrude and cause leakage. It is also nota safe practice to undo (“crack”) larger fittings, for bleeding offair, because of the high forces possible.

Parker's bleed adapters are designed specifically for installa-tion directly onto O-ring face seal type fittings or in manifoldswith female pipe threads or SAE straight threads. Wheneverpossible, the bleed adapter should be mounted at the highestpoint within the system. Trapped air can then be relieved, whilethe system is running at low pressure, by turning the bleedscrew 1/2 turn counter clockwise. After the fluid begins to runfreely, the bleed screw is then retightened.

WARNING: When bleeding air from hydraulic systems, oper-ate below 500 psi. To avoid injury, ensure no one is in the pathof discharge. It is good practice to attach a piece of hose tobleed adapters to direct oil away from the fittings.

Fig. A13 — Parker Bleed Adapters



A37FluidConnectors


AFitting Envelope Dimensions

Straight Shape

Ferulok Fittings

ShapeStraight

Triple-Lok Fittings

Seal-Lok Fittings

NOTE: For “A” dimension for parflange,see bulletin 4390-1040A.

Straight Shape

Table A31 — Seal-Lok Fitting EnvelopeDimensions

Table A32 — Triple-Lok Fitting EnvelopeDimensions

Table A33 — Ferulok Fitting EnvelopeDimensions


Nominal Tube O.D. A C U1/4 0.04 0.255 0.403/8 0.04 0.295 0.471/2 0.04 0.394 0.545/8 0.06 0.393 0.653/4 0.06 0.452 0.791 0.06 0.512 0.94

1 1/4 0.06 0.512 1.081 1/2 0.06 0.512 1.30

Nominal Tube O.D. A F G U1/8 0.07 0.19 0.12 0.223/16 0.08 0.25 0.12 0.251/4 0.09 0.19 0.17 0.335/16 0.08 0.30 0.11 0.363/8 0.08 0.28 0.19 0.401/2 0.12 0.31 0.19 0.515/8 0.13 0.38 0.27 0.583/4 0.15 0.36 0.25 0.727/8 0.15 0.38 0.31 0.791 0.15 0.34 0.41 0.87

1 1/4 0.20 0.34 0.39 1.151 1/2 0.18 0.50 0.55 1.30

2 0.28 0.55 0.53 1.66

Nominal Tube O.D. A B U1/8 0.19 0.31 0.223/16 0.23 0.34 0.251/4 0.23 0.42 0.335/16 0.25 0.42 0.363/8 0.25 0.47 0.401/2 0.31 0.50 0.515/8 0.35 0.53 0.583/4 0.35 0.56 0.727/8 0.35 0.53 0.791 0.42 0.66 0.87

1 1/4 0.42 0.72 1.151 1/2 0.49 0.72 1.30

2 0.49 0.84 1.66

A38FluidConnectors



Fig. 24 — Correct

Fig. A25 — Incorrect

Tube Line Fabrication Guide for Leak Free SystemsEvery hydraulic, pneumatic and lubrication system requiressome form of tube line fabrication and fitting installation forcompletion. Proper fabrication and installation are essential forthe overall efficiency, leak free performance, and generalappearance of any system.

Start by planning ahead. After sizing the tube lines and select-ing the appropriate style of fitting, consider the following in thedesign of your system:

1. Accessibility of joints2. Proper routing of lines3. Adequate tube line supports

4. Available fabricating tools

Routing of LinesRouting of lines is probably the most difficult yet most signifi-cant of these system design considerations. Proper routinginvolves getting a connecting line from one point to anotherthrough the most logical path.

Always try to leave fitting joints as accessible as possible. Hardto reach joints are hard to assemble and tighten properly.Inaccessible joints are also more difficult and time consumingto service.

The most logical path should have the following characteris-tics:

• Avoid excessive strain on joint — A strained joint willeventually leak. (See Figures A14 through A21.)

• Allow for expansion and contraction — Use a “U”bend or a hose in long lines to allow for expansion andcontraction. (See Figure A22.)

• Allow for motion under load — Even some apparentlyrigid systems do move under load. (See Figure A23.)

• Get around obstructions without using excessiveamount of 90° bends — Pressure drop due to one 90°bend is greater than that due to two 45° bends. (SeeFigures A24 and A25.)

• Keep tube lines away from components that requireregular maintenance. (See Figures A26 and A27.)

• Have a neat appearance and allow for easy trouble-shooting, maintenance and repair. (See Figures A28and A29.)

Fig. A14 — Correct Routing Fig. A15 — Incorrect Routing




Fig. A22 — U-Bend Allowing Expansion and Contraction

Fig. A23 — Bent Tube Allowing for Motion Under Load



A39FluidConnectors


ATools for Tube Line FabricationUsing the proper tool for the job is the best way of achievinggood results. Parker sells a variety of fabricating tools whichwere specifically designed to help you achieve the most accu-rate results in 1) cutting, 2) bending and 3) tube end preparation(flaring, presetting, brazing or flanging). For details on use ofthese tools please refer to individual fittings sections and/or theTube Fabricating Section.

1) Cutting

For making smooth, square cuts in metal tubing you have thechoice of:

A) The TP432 and TP1025 Tube Preparation Centerswith an electrically driven circular toothed saw. (TheTP432 can also make cuts at angles other than 90°,e.g., for dip tubes (page N47 and N48)).

B) Hardened wheel type tube cutters (page N5).C) Tru-Kut Sawing Vise for guiding your hacksaw for a

smooth square cut (page N5).D) The 974250 Cut-Off Saw. The Cut-Off Saw can also

make cuts at angles other than 90° (page N5).

2) Bending

For smooth, wrinkle free bending without excessive flatteningthere are a number of benders to choose from:

A) Hand held lever type benders (pages N9 and N10).Individually sized for tube sizes 1/8" through 1".

B) Manual crank, table mount or vise mount benders:

I) Model 412 (page N13). For bending 1/4" through3/4" O.D. tube or 6mm through 20mm.

II) Model 424 (page N14). For bending 1/4" through1 1/2" O.D. tube or 6mm through 38mm.

C) Hydraulically powered bender.I) Model 632 (page N16). For bending 3/8" through

2" O.D. tube or 10mm through 50mm.

Manual crank and hydraulic benders have accessories formandrel bending to prevent tube wall flattening and wrinkling incase the tube wall is too thin relative to the tube O.D. and bendradius. As a rule of thumb, if the tube wall thickness is less than7% of the tube O.D. then mandrel bending is recommended.

Note: See bulletin 4306-B5 for detailed bending instructions.

3) Tube End Preparation

The tube end preparation depends on the style of fitting beingused. For example, Triple-Lok fittings require flaring, Ferulokrequires pre-setting and Seal-Lok requires brazing or flanging.

A) Flaring

I) Vise block and flaring pin — 37° flare (page N30)— impact type flaring tool for copper, aluminum,fully annealed steel and stainless steel. Requiresseparate set for each tubing size — 1/4" O.D.through 1-1/2" O.D.

II) 210A combination flaring tool — 37° flare (pageN30) — impact type flaring tool for copper, alumi-num, fully annealed steel and stainless steel.Flares 7 sizes — 1/8" O.D. through 5/8" O.D.

Fig. A26 — Correct Fig. A27 — Incorrect

Fig. A28 — Correct Fig. A29 — Incorrect


Fig. A30 — Recommended Clamping for Dampening Vibration

Tube ClampsTube line supports are mainly for dampening vibration. Fatiguefailure due to mechanical vibration accounts for the majority oftube line failures. Use a clamping system such as Parker’sParKlamp and space the clamps according to the Table A34Recommended Tube Clamp Spacing. Proper clamping of thetube also reduces system noise.

Table A34 — Recommended TubeClamp Spacing

Tube O.D.

A(in.)

B(ft.)

C(in.)

1/4"5/16" 2" 3' 4"3/8"1/2"5/8"3/4" 4" 5' 8"7/8"1"

1 1/4"1 1/2" 6" 7' 12"

2"

A40FluidConnectors



Assembling O-Ring PortStuds (Ends)The three common types of port ends used in the United Stateswith tube fittings, pipe fittings and hose fittings are: 1) SAEstraight thread O-ring, 2) National Pipe Thread, and 3) SAECode 61 and Code 62 4-Bolt Split Flange.

Fig. A31 — SAE Straight Fig. A32 — SAE StraightThread O-ring Port Thread O-ring Port Assembly

Parker straight thread inch base fittings shown in this catalogare for connection with the SAE straight thread port as shownon page A19. When properly assembled, they provide the bestleak free port connection there is. Metric Seal-Lok fittings arefor connection with ISO 6149-1, the metric ISO straight threadO-ring port.

Basic port dimensions for SAE straight thread port are given onpage A19. For counterbores and taps to machine this port, seepage N50. O-rings used with this port are shown on pages A19and B45.

Basic port dimensions for ISO 6149-1 port are given on pageA18. For counterbores and taps to machine this port, seepages N52 and N53. O-Rings for this port are shown on pagesA18 and I35. Assembly procedure for this port is the same asthat for SAE straight thread port. For assembly torques, seepage A45.

The SAE port is the same as MS 16142. It is also similar to, butdimensionally not the same as, MS 33649 and AND 10050.

The male and female ends of an SAE Straight Thread O-ringPort connection have UN/UNF straight threads; an elastomericO-ring is fitted to the male end. On assembly, the O-ring isfirmly sandwiched between the angular sealing surface of thefemale port and the shoulder of the male end. Sealing is thuseffected and maintained by the O-ring compression whichresults from the clamping force generated by the tighteningaction. The straight threads do not offer sealing action; theyprovide the resistance (holding power) for service pressure.


III) Rolo-Flare — 37° or 45° flare (page N31) manualrotating cone type flaring tool for copper andaluminum tube. Flares 8 sizes — 1/8" O.D. through3/4" O.D.

IV) Hydra-Tool — 37° or 45° flare (page N31) —hydraulically operated, axial piston type. Flares(inch or metric) sizes 1/4" (6mm) through 2"(50mm) O.D.

V) Parflange 1040 (page N26) — For high speedprecision flanging for Seal-Lok and 37° flaring forTriple-Lok from 1/4" (6mm) to 2" (50mm) O.D.tubing.

VI) Parflange 1025 (page N27) — for precision flang-ing and flaring of 1/4" (6mm) to 1 1/2" (38mm)O.D. tubing.

VII) 1015 — 37° or 45° flare (page N35) hydraulicaxial piston. Machine flares inch or metric 1/4"(6mm) through 1 1/2" (38mm) O.D.

B) Pre-setting

I) Ferulset Pre-setter (page N37) — Hand tool withcontour similar to a fitting body but made ofspecially hardened material for individual sizes1/8" O.D. through 2" O.D.

II) Hyferset (page N39) — Hydraulically operatedtool capable of presetting sizes 1/4" through 2" O.D.

III) Hydra-Tool (page N31) — The Hydra Tool isequipped with pre-setting accessories whichmakes it a hydraulic pre-setting tool capable ofpre-setting sizes 1/4" through 2" O.D.

C) BrazingI) Single Point Torch — Torch uses acetylene and

air for brazing 1/4" through 5/8" steel or stainlesssteel Seal-Lok fittings.

II) Multi-point torch (page N29) — Torch uses acety-lene and air to achieve wrap-around flame forbrazing 1/4" through 2" Seal-Lok fittings.

D) Flanging

I) Parflange 1040 (page N26) — For high speedprecision flanging for Seal-Lok and 37° flaring forTriple-Lok from 1/4" (6mm) to 2" (50mm) O.D.tubing.

II) Parflange 1025 (page N27) — for precision flang-ing and flaring of 1/4" (6mm) to 1 1/2" (38mm)O.D. tubing.

Other tools such as taps and counterbores, for making SAE &ISO straight thread ports, and IN-EX deburring tools are alsoavailable (pages N50 through N53, and N6 respectively).


A41FluidConnectors


ASAE, ISO and JIS Adjustable EndAssembly

Fig. A34 — Locknut Backed Fig. A35 — Threaded intoOff Prior to Assembly Port Until Back-up Washer

Contacts Port Face

1. Inspect to ensure that both mating parts are free of burrs,nicks, scratches or any foreign particles.

2. Install O-ring on port end of fitting, if it is not pre-installed,taking care not to nick the O-ring.

Fig. A36 — Fitting Backed Fig. A37— Fitting TightenedOff for Alignment in Final Position

3. Lubricate O-ring with light coat of system fluid or compat-ible oil.

4. Back off lock nut as far as possible. Make sure back-upwasher is not loose and is pushed up as far as possible.

5. Screw fitting into port until the back-up washer contactsthe face of the port. Light wrenching may be necessary.

6. To align the tube end of fitting to accept incoming tube orhose assembly, unscrew by required amount, but notmore than one full turn.

7. Using two wrenches, hold fitting in desired position andtighten locknut to the appropriate torque value shown inthe appropriate Assembly Torque table.

8. Inspect to ensure that O-ring is not pinched and back-upwasher seats flat on face of port.

Fig. A33 — Fitting withAdjustable StraightThread O-ring End


* Use 310 in. lbs. for size 4 straight fittings.

Table A36 — Port End Assembly Torques for SAE J1926 Studswith Seal-Lok Fittings

Note: Always lubricate threads and mating surfaces. Valuesin chart are for steel fittings in steel ports. For stainless steelfittings, use upper limit of torque range. For brass fittings,decrease torque by multiplying value given in table by 0.65.

For ISO 6149 port assembly torques, see Table A42.

For JIS B2351 port assembly torques, contact Tube FittingsDivision.

Table A35 — Port End Assembly Torques for SAE J1926 Studswith Triple-Lok and Ferulok Adjustable Fittings

SAE J1926 with Triple-Lok and Ferulok Adjustable Fittings

SAE Thread Assembly Torque (+10% -0)Dash Size

Size (UN/UNF) in. lbs. ft. lbs. N-m

2 5/16 - 24 60 5 7

3 3/8 - 24 120 10 13.5

4 7/16 - 20 155 13 17.5

5 1/2 - 20 250 21 28

6 9/16 - 18 300 25 34

8 3/4 - 16 480 40 55

10 7/8 - 14 — 60 80

12 1 1/16 - 12 — 75 100

14 1 3/16 - 12 — 100 135

16 1 5/16 - 12 — 110 150

20 1 5/8 - 12 — 215 290

24 1 7/8 - 12 — 240 325

32 2 1/2 - 12 — 310 420

SAE J1926 with Seal-Lok Straight and Adjustable Fittings

SAE Thread Assembly Torque

Dash Size (+10% -0)


4 7/16 - 20 180* 15 20

5 12-20 360 30 40

6 9/16 - 18 420 35 46

8 3/4 - 16 — 60 80

10 7/8 - 14 — 100 135

12 1 1/16 - 12 — 135 185

14 1 3/16 - 12 — 175 235

16 1 5/16 - 12 — 200 270

20 1 5/8 - 12 — 250 340

24 1 7/8 - 12 — 305 415

32 2 1/2 - 12 — 375 510


A42FluidConnectors



Pipe Thread Ports

Fig. A39 — Pipe Thread Port

The variety of thread forms available under Pipe Threadinclude:

NPT - American Standard Taper Pipe Thread (ANSI B1.20.1)NPTF - Dryseal American Standard Taper Pipe Thread (SAEJ476, ANSI B1.20.3)

NPSF - Dryseal American Fuel Internal Straight Pipe Thread(SAE J476, ANSI B1.20.3)NPSM - American Standard Straight Pipe Thread for FreeFitting Mechanical Joints (ANSI B1.20.1)PTF - Dryseal/SAE Short Taper Pipe Thread (SAE J476, ANSIB1.20.3)

ANPT - Aeronautical National Pipe Thread (Mil-P-7105A)

The majority of Parker Tube Fittings Division’s standard pipethread fittings are machined with the NPTF thread form. NPTFthread is also referred to as Dryseal Pipe Thread.

The NPTF male and female threads have a diametral taperof 3/4" per 12" of length (or approximately 1 degree and 47

SAE, ISO and JIS Non-AdjustableEnd Assembly (Straight Fitting)

Fig. A38 — Straight Fitting Assembled to SAE Port

1. Inspect components to ensure that male and female portthreads and sealing surfaces are free of burrs, nicks, andscratches, or any foreign material.

2. If O-ring is not pre-installed to fitting port end, install propersize O-ring.

3. Lubricate O-ring with light coating of system fluid orcompatible oil.

4. Screw fitting into port until the hex flat contacts the portface. Light wrenching may be necessary.

5. Tighten to given torque for the size from appropriate table.


Table A38 — Port Assembly Torques for SAE J1926 StraightThread O-ring Plugs


Table A37 — Port End Assembly Torques for SAE J1926 Studswith Triple-Lok and Ferulok Non-Adjustable Fittings


For ISO 6149 port assembly torques, see Table A42.

For JIS B2351 port assembly torques, contact Tube FittingsDivision.

SAE J1926 with Triple-Lok and Ferulok Non-Adjustable Fittings

SAE Thread Assembly Torque (+10% -0)Dash Size


2 5/16 - 24 85 7 9.5

3 3/8 - 24 155 13 17.5

4 7/16 - 20 205 17 23

5 1/2 - 20 250 21 28

6 9/16 - 18 300 25 34

8 3/4 - 16 540 45 60

10 7/8 - 14 — 85 115

12 1 1/16 - 12 — 105 140

14 1 3/16 - 12 — 140 190

16 1 5/16 - 12 — 155 210

20 1 5/8 - 12 — 215 290

24 1 7/8 - 12 — 240 325

32 2 1/2 - 12 — 310 420

SAE J1926 with Straight Thread O-Ring Plugs

SAE Thread Assembly Torque (+10% -0)

Dash Size Hollow Hex Head (HP5ON) Hex Head (P5ON)

Size (UN/UNF) in. lbs. ft. lbs. N-m in. lbs. ft. lbs. N-m

2 5/16 - 24 30 2.5 3.5 85 7 9.5

3 3/8 - 24 55 4.5 6 155 13 17.5

4 7/16 - 20 120 10 13.5 300 25 35

5 1/2 - 20 170 14 19 360 30 40

6 9/16 - 18 410 34 46 410 34 46

8 3/4 - 16 — 60 80 — 60 80

10 7/8 - 14 — 100 135 — 100 135

12 1 1/16 - 12 — 135 185 — 135 185

14 1 3/16 - 12 — 175 235 — 175 235

16 1 5/16 - 12 — 200 270 — 200 270

20 1 5/8 - 12 — 250 340 — 250 340

24 1 7/8 - 12 — 305 415 — 305 415

32 2 1/2 - 12 — 375 510 — 375 510



A43FluidConnectors


Aminutes angular taper). NPTF (Dryseal) thread has controlledtruncation at the crest and root to assure metal to metal crest-root contact prior to, or just as the male-female thread flanksmake hard contact. Upon tightening further, the thread crestsflatten out and allow the flanks to make contact. This full threadprofile contact is supposed to give the NPTF threads self-sealing ability. However, variations in condition of matingthreads, fitting and port materials, assembly procedures andoperating conditions make self-sealing highly improbable.

It should be noted that in addition to affecting a seal, the pipethread also provides holding power for service pressure. Forthis, as well as other reasons, the pipe threaded fittings are notrecommended for high dynamic pressure systems. The SAEstraight thread O-ring fitting/port is a preferred choice.

Suggested Applications forPipe Thread Fittings and Adapters

In light of its sealing mechanism, assembly restrictions anddesign limitations, pipe thread components are suitable whenthe following conditions exist:1. Minimum hydraulic shocks or vibration2. The fitting is limited to one or two re-uses

3. The system utilizes low pressure; or few operatingcycles (static condition) for higher pressure service

4. Skilled workers trained in the pros and cons of pipefitting assembly are present

Type of Sealant/Lubricant

Sealant/Lubricants assist in sealing and provide lubricationduring assembly, reducing the potential for galling. Pipe threadsealants are available in various forms such as dry pre-applied,tape, paste and anaerobic liquid.

Pre-applied sealants, such as “Vibraseal” (registered trade-mark of Loctite Corporation) and powdered PTFE are usuallyapplied to connectors by the manufacturer. Connectors withsome of these sealants may be remade a few times withoutneeding additional sealant. Vibraseal may also help reduceloosening due to vibration.

PTFE tape, if not applied properly, can contribute to systemcontamination during assembly and disassembly. In addition,because of PTFE’s high lubricity, fittings can be more easilyover tightened; and it does not offer much resistance toloosening due to vibration.

Paste sealants can also contribute to system contamination, ifnot applied properly. They are also messy to work with; andsome types require a cure period after component installation,prior to system start up.

Anaerobic liquids are available from several manufacturersand perform sealing as well as thread locking functions. Theyare applied to the connectors by the user and require a cureperiod prior to system start up. Some are soluble in commonhydraulic fluids and will not contaminate the system. For properperformance they need to be applied to clean and dry compo-nents, carefully following the manufacturer’s directions.

For proper application of the sealants see the following assem-bly section and follow the manufacturer’s recommendation.


Assembly

Fig. A40 — Elbow fitting assembled to pipe port

The proper method of assembling pipe threaded connectors isto assemble them finger tight and then wrench tighten furtherto the specified number of turns from finger tight (T.F.F.T.)given in Table A39. The assembly procedure given below isrecommended to minimize the risk of leakage and/or damageto components.1. Inspect port and connectors to ensure that threads on both

are free of dirt, burrs and excessive nicks.2. Apply sealant/lubricant to male pipe threads. For stainless

steel fittings, the use of Parker Threadmate sealant/lubri-cant is strongly recommended. (Pre-applied dry sealantsare preferred over other sealants). With any sealant, thefirst one to two threads should be left uncovered to avoidsystem contamination. If PTFE tape is used it should bewrapped 1 1/2 to 2 turns in clockwise direction whenviewed from the pipe thread end.

Caution: More than two turns of tape may causedistortion or cracking of the port.

3. Screw the connector into the port to the finger tight posi-tion.

4. Wrench tighten the connector to the appropriate T.F.F.T.values shown in Table A39, making sure that the tube endof a shaped connector is aligned to receive the incomingtube or hose assembly. Never back off (loosen) pipethreaded connectors to achieve alignment.

5. If leakage persists after following the above steps, checkfor damaged threads and total number of threads en-gaged.

If threads on the fitting are badly nicked or galled, replace thefitting. If port threads are damaged, re-tap, if possible, orreplace the component. If the port is cracked, replace thecomponent.

Normally, the total number of threads engaged should bebetween 3 1/2 and 6. Any number outside of this rangeindicates either under or over tightening of the joint or out oftolerance threads. If the joint is under tightened, tighten itfurther but no more than one full turn. If it is over tightened,check both threads, and replace the part which has out-of-tolerance threads.

Pipe Thread SizeNPTF T.F.F.T.

1/8 - 27 2 - 31/4 - 18 2 - 33/8 - 18 2 - 31/2 - 14 2 - 33/4 - 14 2 - 3

1 - 11 1/2 1.5 - 2.51 1/4 - 11 1/2 1.5 - 2.51 1/2 - 11 1/2 1.5 - 2.5

2 - 11 1/2 1.5 - 2.5

Table A39 — AssemblyTurns From FingerTight (T.F.F.T) ValuesFor Steel, StainlessSteel and BrassFittings

A44FluidConnectors



Table A41 — Code 62 Bolt Size & Assembly Torques

Table A40 — Code 61 Bolt Size & Assembly Torques

Fig. A42 — Recommended Bolt Torque Sequence

As a general rule, pipe threaded fittings should not be as-sembled to a specific torque because the torque required for areliable joint varies with thread quality, port and fitting materi-als, sealant used, and other factors. Where many of thesefactors are well controlled, such as particular jobs on anassembly floor, a torque range that produces the desiredresults may be determined by test and used in lieu of turnscount for proper joint assembly.

SAE Code 61 and Code 624-Bolt Split FlangeLarge threaded port connections, such as SAE straight thread,require very high torque to assemble in high pressure applica-tions. This makes assembly very difficult, especially wherewrench clearance is limited. Split flange adapters solve thisproblem by dividing the hydraulic load among four bolts eachrequiring much less torque and smaller wrench clearance.

The 4-Bolt Split Flange Adapter consists of four main compo-nents: a body, an O-ring, two flange clamps and four bolts.

The four bolt port is simply a flow passage surrounded by apattern of four tapped holes for accepting the clamping bolts.The flat surface of the port compresses the O-ring contained inthe groove in the flange head when the clamp bolts are torqueddown. The bolts, through the clamp halves, clamp down theflange head on to the flat surface of the port compressing andtrapping the O-ring in the groove and leaving no gap for it toextrude under pressure. The hydraulic pressure is thus sealedby the compressed O-ring as long as the bolts are tightenedenough to maintain solid metal to metal contact between theflange head at the outside diameter of the O-ring and the top ofthe port.

Fig. A41 — 4-bolt split flange connection

Assembly1. Make sure sealing surfaces are free of burrs, nicks,

scratches or any foreign particles.2. Lubricate the O-ring.3. Position flange and clamp halves.4. Place lock washers on bolts and bolt through clamp

halves.5. Hand tighten bolts.6. Torque bolts in diagonal sequence in small increments

to the appropriate torque level listed in Table A40 orA41.


Code 61 Flange Adapter Recommended Bolt Torque

Dash Flange Bolt Torque

Size Size Thread Size in. lbs. ft. lbs.

12 3/4 3/8-16 300 ± 50 25 ± 4.5

16 1 3/8-16 375 ± 50 31 ± 4.5

20 1 1/4 7/16-14 488 ± 62 41 ± 5

24 1 1/2 1/2-13 625 ± 75 52 ± 6

32 2 1/2-13 725 ± 75 60 ± 6

Code 62 Flange Adapter Recommended Bolt Torque

Dash Flange Bolt Torque

Size Size Thread Size in. lbs. ft. lbs.

12 3/4 3/8-16 300 ± 50 30 ± 4.5

16 1 7/16-14 375 ± 50 46 ± 4.5

20 1 1/4 1/2-13 825 ± 75 69 ± 6

24 1 1/2 5/8-11 1500 ± 100 125 ± 8


A45FluidConnectors


A

1) M30X2 will be added to ISO 6149 standards at nextrevision.

2) M38X2 is not covered in ISO 6149 standards.3) These torques are for steel fittings, assembled

lubricated.4) For cartridge valves only.

Table A42 — Assembly Torques for ISO 6149-2 and 6149-3Stud Ends

ISO 6149 Port AssemblyISO 6149 port and stud ends are similar in design to SAEstraight thread port and stud ends, respectively. Therefore, theassembly procedure for adjustable and non-adjustable studends is the same as that for SAE straight thread ends shownon pages A41 and A42.


JIS Parallel Pipe Thread O-Ring Port(JIS B2351, Type “O”) AssemblyThe sealing concept of this O-ring port, shown on page A17, isthe same as that of SAE straight thread O-ring port. Therefore,the assembly procedure for the adjustable and non-adjustablestud ends is the same as shown on pages A41 and A42.

For assembly torques, please contact the Tube Fittings Divi-sion.

ISO 1179 (BSPP, Flat Face) PortAssemblyIn ISO 1179 port, the sealing takes place, via several differentsealing methods, on the top flat face of the port as seen on pageA21. Assembly procedure for all non-adjustable stud ends isthe same as the SAE non-adjustable stud end as shown onpage A42, except for different sealing methods. The adjustablestud ends (seal type “H”) can be assembled using the proce-dure shown on page A41. Recommended assembly torquesare given in Table A43.

ISO 9974 (Metric Parallel Thread, FlatFace) Port AssemblyThis port is similar to ISO 1179 port except with metric threads.It employs similar sealing methods as seen on page A22. Usethe same assembly procedure as ISO 1179. Assembly torquesare given in Table A44.

N.m. ft. lbs. N.m. ft. lbs.

M8X1 10 7.5 8 6

M10X1 20 15 15 11

M12X1.5 35 26 25 18

M14X1.5 45 33 35 26

M16X1.5 55 41 40 30

M18X1.5 70 52 45 33

M20X1.54) 80 59 — —

M22X1.5 100 74 60 44

M27X2 170 125 100 74

M30X21) 235 175 130 95

M33X2 310 230 160 120

M38X22) 320 235 185 135

M42X2 330 145 210 155

M48X2 420 310 260 190

M60X2 500 370 315 230

ISO 6149 / DIN 3852-T3 Port Assembly — Metric ISO Thread "M"

Metric Thread M Size

Assembly Torque (+10% -0)3)

ISO 6149-2 Stud Ends (S-Series)

(Seal-Lok, EO & VSTI-OR Plugs)

ISO 6149-3 Stud Ends (L-Series)

(Triple-Lok, EO, Ferulok & Pipe Adapters)


A46FluidConnectors


4300 Catalog General TechnicalRouting and Assembly

Note: Lubricate threads before assembly! Tightening torques are for steel fittings assembled in steel components.Table A43 — Assembly Torques for ISO 1179-1 Port

Note: Lubricate threads before assembly! Tightening torques are for steel fittings assembled in steel components.Table A44 — Assembly Torques for ISO 9974-1 Port

ISO 1179-1 / DIN 3852-T2 Form X Port Assembly — BSPP Thread “G”

ISO 9974-1 / DIN 3852-T1 Form X Port Assembly — Metric ISO Thread “M”

Assembly Torque Nm +10% -0

Straight Male Stud Fittings

Non-Return Valves

RHV / RHZ Banjo FittingsPlugs

VSTI-ED

Straight and Adjustable

Fittings

SeriesTube O.D.

BSPP Thread G Size

Form A for Sealing

Washer

Form B with Cutting

Face

Form E with ED- Sealing

Form E with ED- Sealing WH / TH SWVE


O-Ring with Retaining Ring

and Bonded Washer

6 G 1/8A 9 18 18 18 18 18 13 188 G 1/4A 35 35 35 35 45 40 30 35

10 G 1/4A 35 35 35 35 45 40 3512 G 3/8A 45 70 70 50 70 65 60 70

L 15 G 1/2A 65 140 90 85 120 90 80 9018 G 1/2A 65 100 90 65 120 90 9022 G 3/4A 90 180 180 140 230 125 140 18028 G 1A 150 330 310 190 320 200 31035 G 1 1/4A 240 540 450 360 540 450 45042 G 1 1/2A 290 630 540 540 700 450 540

6 G 1/4A 35 55 55 45 45 40 358 G 1/4A 35 55 55 45 45 40 35

10 G 3/8A 45 90 80 60 70 65 7012 G 3/8A 45 90 80 60 70 65 70

S 14 G 1/2A 65 150 115 145 120 90 9016 G 1/2A 65 130 115 100 120 90 9020 G 3/4A 90 270 180 145 230 125 18025 G 1A 150 340 310 260 320 31030 G 1 1/4A 240 540 450 360 540 45038 G 1 1/2A 290 700 540 540 700 540

Assembly Torque Nm +10% -0

Straight Male Stud Fittings

Non-Return Valves

RHV / RHZ Banjo FittingsPlugs

VSTI-ED

Straight and Adjustable

Fittings

SeriesTube O.D.

Metric Thread M Size

Form A for Sealing

Washer

Form B with Cutting

Face


Form E with ED- Sealing WH / TH SWVE


O-Ring with Retaining Ring

6 M 10 x 1 9 18 18 18 18 18 12 158 M 12 x 1.5 20 30 25 25 45 35 25 25

10 M 14 x 1.5 35 45 45 35 55 50 35 3512 M 16 x 1.5 45 65 55 50 80 60 55 40

L 15 M 18 x 1.5 55 80 70 70 100 80 65 4518 M 22 x 1.5 65 140 125 125 140 120 90 6022 M 27 x 2 90 190 180 145 320 130 135 10028 M 33 x 2 150 340 310 210 360 225 16035 M 42 x 2 240 500 450 360 540 360 21042 M 48 x 2 290 630 540 540 700 360 260

6 M 12 x 1.5 20 35 35 35 45 35 358 M 14 x 1.5 35 55 55 45 55 50 55

10 M 16 x 1.5 45 70 70 55 80 60 7012 M 18 x 1.5 55 110 90 70 100 80 90

S 14 M 20 x 1.5 55 150 125 100 125 110 80 12516 M 22 x 1.5 65 170 135 125 135 120 13520 M 27 x 2 90 270 180 135 320 135 18025 M 33 x 2 150 410 310 210 360 31030 M 42 x 2 240 540 450 360 540 45038 M 48 x 2 290 700 540 540 700 540


A47FluidConnectors


ATube Fittings Pressure DropIn hydraulic systems, pressure drop represents loss of energyand therefore should be kept to a minimum. Pressure loss instraight tubing and hose is mainly caused by the frictionalresistance of the walls, while in fittings it is mainly caused bychanges in the magnitude or direction of the fluid velocity.Mathematical analysis of pressure drop, even though pos-sible, may not be exact because of the interrelationship offactors such as fluid density, velocity, flow area and frictionalco-efficients.

The following pressure drop charts were derived from actualtest data and may be used as a guide for determining pressure

Examples:

drops at various flow rates through fittings for fluid indicated. Todetermine pressure drop for a given flow, trace a vertical line upfrom the flow axis to the desired size line then trace a horizontalline from this intersection over to the pressure drop axis.

Example: A size 8 CTX, with oil, similar to the test fluid, flowingthrough it at 4 gallons per minute, would cause a pressure dropof approximately 2.3 psi. Conversions will have to be made forfluids which are not similar to test fluid.

The Tube Fittings part numbers are listed below the PressureDrop Chart to which they apply.

Fig. A43 — Pressure Drop Chart for 90° Fittings or Branch Path Through a Tee or Cross Fitting (Triple-Lok)

Seal-Lok/Metric Seal-Lok* Triple-Lok Ferulok* Pipe*

AEL6, CL, C5L, C6L, CTX, C5X, C6X, CU, C5U, C6U, AEG, CD, CR,EL, JL, KL, R5L, R6L ETX, JTX, KTX, EU, JU, KU, DD, KMMOO, MMO,S5L, S6L, CML, C87ML, RTX, R5X, R6X, RU, R5U, R6U, MMS, MRO, RRSC6ML, EML, JML, KML, STX, S5X, S6X SU, S5U, S6UR87ML, R6ML, S87ML,S6ML

*These pressure drop curves were established with Triple-Lok fittings. The pressure drop values can be adjusted forother fittings of the same size by multiplying the value from the chart by the ratio of Triple-Lok flow diameter to that ofthe other fitting, raised to the 4th power.

Example: Find pressure drop for 6C5L at 5 gallons per minute flow rate:From the chart, the pressure drop for 6C5X is 10 psi.Also, the ratio of 6C5X to 6C5L flow diameters is 0.297/0.264, or 1.125.Therefore, the pressure drop for Seal-Lok = 10 x (1.125)4 = 16 psi.

Reference Material

A48FluidConnectors



Examples:

Fig. A44 — Pressure Drop Chart for Straight Fittings and Run Legs of Tees and Crosses (Triple-Lok)


FL, F5L, HL, JL, KL, R5L, FTX, F5X, HTX, JTX, FU, F5U, HU, FF, FG, F5GR6L, S5L, S6L, F87ML, HML, KTX, LHTX, RTX, R5X, JU, KU, RU, R5U,JML, KML, R87ML, R6ML, R6X, STX, S5X, S6X R6U, SU, S5U, S6US87ML, S6ML

Example:

Fig. A45 — Pressure Drop Chart for 45° Elbow Fittings (Triple-Lok)


V5L, V6L,V87ML, V6ML VTX, V5X, V6X VU, V5U, V6U CD45, DD45

Reference Material

*See footnote on Page A46.


A49FluidConnectors


A

Monel

Monel ferrulesare marked with“NA1”.

Stainless Steel

Stainless steelferrules have aknurl and a “P”as shown.

Product Identification Markings

Ferulok Ferrules

All Materials

Parker “P” appears on Fittings with the Parkerone wrench flat. “P” in a circle indicate

metric flats.

“316” Stainless Steel and “NA1” Monel

Material is identified on the flat Heat code is stamped onopposite the Parker “P” on stain- the hex flat for heat traceableless steel and monel forgings. parts.

Steel

Carbon steelferrules haveno knurl.

NutsTriple-Lok Fittings

Barstock Parts

All Materials

Barstock fittings have the Parker The Parker “P” appears in a“P” and material symbol, for all circle, on parts with metricmaterials other than standard flats.steel, marked on hex flats. Heatcode is stamped on one of theflats of heat traceable parts.

Steel — Barstock

Parker “P” and size aremarked on flats.

Steel — Headed

Parker “P”, size and name aremarked on back faceof nut.

Steel — Barstock

Parker “P”, size and nameare marked on hex flats.

Fig. A45 — Marking and Identification (continued on the next page)

Steel — Headed

Parker “P” and size aremarked on back face of nut.

Ferulok Fittings

Parker “P” Appears on Every Forging

Reference Material

Stainless, Brass and Monel Nuts

Parker “P”, material symbol and size are marked on theflats of barstock nuts; and on the back face of headednuts. Heat code is marked on flats of stainless steel andMonel barstock nuts.

Stainless and Monel Nuts

Barstock nuts: Parker “P”, material symbol and size aremarked on the flats of barstock nuts.Cold formed nuts: Parker “P” or “Parker” and 6BU-SS aremarked on the back face of stainless steel nuts.Heat code is marked on flats of stainless steel and Monelbarstock nuts.

A50FluidConnectors



Seal-Lok Fittings

High Strength Steel — Barstock

Parker “P”, material, size and nameare marked on hex flats.

*Indicates high strength nut for usewith copper braze tube assembly.

Steel — Barstock

Parker “P”, size and name aremarked on hex flats.

Steel — Headed

Parker “P”, and size are markedon back face of nut

Seal-Lok Sleeves

Flange Style

INCH TUBING METRIC TUBING

Sleeves have “Parflange®” or“Parflange® Patented” roll marked onthe small diameter.

Braze Style

INCH TUBING METRIC TUBING

Stainless

Parker “P”, material symbol, size,heat code and name are marked onthe hex flats.

Fig. A45 (Cont'd.) — Marking and Identification

Conformance Standards For TFD Productsby Product Type or Subject

Fittings:Bleed Adapters: None (meet SAE J1453 require-

ments)“EO” Bite Type: ISO 8434-1, DIN 3861 (tube con-

nection), DIN 2353 (configurations)Ferulok: SAE J514, MIL-F-188663)

Flange Adapters: Flange end conforms to SAE J518Tube/Hose ends conform to SAEJ514 and SAE J1453

Intru-Lok: NoneJIS Adapters: JIS B8363 (hex sizes and some

center to end dimensions do notconform)

K4 Adapters: BS 5200Metric Seal-Lok: SAE J1453-11) and -21), ISO 8434-3Metric Triple-Lok: ISO 8434-2Pipe Fittings: SAE J514Pipe Plugs: SAE J531Seal-Lok: SAE J1453Straight Thread Plugs: SAE J514Triple-Lok: SAE J514, MIL-F-188663)

07 Adapters: SAE J514

Platings:Carbon Steel —Zinc Phosphate: DOD - P - 16232, Class 1Carbon Steel — ZincWith Yellow Chromate: ASTM B633 Type II FE/ZN5,

Federal QQ-Z-325C - Type IIClass 3, MIL-STD - 171(latest revision), JIS 8610Class 2 Grade 4

Stainless Steel Passivation: QQ-P35 Type VI, ASTMA380

Test Methods:Leak, Burst, Impulse, OverTorque and Repeated Assembly: SAE J1644, NFPA

T3.8.32) and ISO8434-51)

Vibration: NFPA T3.8.32), ISO 7257

Table A46 — Conformance Standards by Product Type or Subject

1) To be published. 2) Inactive.

3) Some Ferulok and Triple-Lok parts do not conform to MS518XX and MS515XX requirements under MIL-F-18866,respectively. Please contact the Tube Fittings Division for conformance details.

Reference Material



A51FluidConnectors


A

ASTM A269 Seamless and welded type 316 StainlessSteel tubing

ASTM B633 Zinc platingASTM F1387 Mechanically attached fittings —

Triple-Lok, Ferulok and Seal-LokDIN 2353 24° cone compression (bite-type) fitting

range (configurations)DIN 3852-1 Metric parallel thread port (ISO 9974-1)DIN 3852-2 BSPP parallel thread port (ISO 1179-1)DIN 3861 24° cone machining and sleeve for com-

pression (bite-type) fittingsDIN 3865 24° cone nipple with O-ringDIN 3859 Technical delivery conditions for compres-

sion fittingsDIN 1630 Seamless steel tubeDIN 2391 Seamless precision steel tubesDIN 17458 Stainless steel tubesISO 11791) BSPP, flat face port and stud ends – same

as DIN 3852 - Part 2ISO 6149 Metric straight thread O-ring port and stud

ends – same as SAE J2244 and DIN 3852,Part 3

ISO 6162 Four bolt split flange connections – inch andmetric bolts (inch bolt, Part II – same asSAE J518)

ISO 8434-1 24° cone bite type fittings (EO fittings)ISO 8434-2 Metric 37° flare fittings (Metric Triple-Lok)ISO 8434-3 Metric face seal fitting with ISO 6149 port

end – (Metric Seal-Lok)ISO 8434-4 24° cone bite type fittings with weld nipple

(EO Fittings)ISO 8434-5 Test methods for threaded fluid connectorsISO 9974 Metric flat face port and stud ends – same

as DIN 3852 - Part 1JIS B8363 60° cone (male and female) hose adaptersMIL-16142 UN/UNF straight thread O-ring port – same

as SAE J1926-1MIL-F-18866 37° flare and flareless tube fittings – Triple-

Lok and Ferulok (dimensionally similar toSAE J514)

MIL-33649 Straight thread O-ring port – different fromSAE J1926-1

Applicable Standards For TFD Productsby Standard Number

NFPA T3.8.32) Test methods for steel separable tube fittingsSAE J343 Tests and procedures for hose and hose

assemblies (impulse test applies to fittings)SAE J356 Welded and flash controlled low carbon steel

tubingSAE J512 Automotive tube fittings

- 45° flare type- Inverted flare type- Tapered sleeve compression type

SAE J514 Hydraulic tube fittings- 37° flare (Triple-Lok)- Flareless – 24° bite type (Ferulok)- O-ring plugs- Pipe fittings- Adapter unions (pipe swivel – “07” adapters)

SAE J515 Hydraulic O-rings (SAE straight thread, faceseal, four-bolt split flange, and metric O-ringport)

SAE J518 Code 61 and 62 four-bolt split flangeconnections – (same as ISO 6162 Type IIflange connection)

SAE J524 Seamless low carbon steel tubingSAE J525 Welded and cold drawn low carbon steel

tubingSAE J527 Brazed double wall steel tubingSAE J528 Seamless copper tubeSAE J531 Automotive pipe, filler and drain plugs (HP

and HHP plugs)SAE J533 Flares for tubing – 37° and 45° single and

double flaresSAE J846 Coding system for identification of fluid

connectorsSAE J9623) Formed tube ends for hose connectionsSAE J1065 Pressure ratings for hydraulic tubingSAE J1231 Beaded tube hose fittingsSAE J1453 O-ring face seal fitting with SAE port end –

(Seal-Lok)SAE J1644 Test methods for fluid connectorsSAE J1926 SAE straight thread O-ring port and stud

ends – same as ISO 11926SAE J2244 Metric straight thread O-ring port and stud

ends – same as ISO 6149

Table A47 — Applicable Standards by Standard Number

1) Being revised. 2) Inactive. 3) Superceded by J1231.

Reference Material

A52FluidConnectors



Thread Designations and Standardsfor Threads Used in Fluid Connectors

Abbreviation Description Applicable Std.

Straight Pipe

NPSC American Standard Straight Pipe Threads in Pipe Couplings ANSI B1.20.1Couplings FED-STD-H28/7

NPSF Dryseal American Standard Fuel Internal Straight Pipe Threads (generally SAEJ476used in soft or ductile materials to mate with NPTF external taper threads) ANSI B1.20.3

FED-STD-H28/8

NPSI Dryseal American Intermediate Internal Straight Pipe Threads (for brittle or SAE J476hard materials; intended to mate with PTF-SAE short external taper threads) ANSI B1.20.3

FED-STD-H28/8

NPSM American Standard Straight Pipe Threads for Free-Fitting Mechanical Joints ANSI B1.20.1for Fixtures (these threads fit freely over NPTF threads. They are used in FED-STD-H28/7swivel nuts of 07 adapters)

Taper Pipe

ANPT Aeronautical National Taper Pipe Threads (similar to NPT with various MIL-P-7105additional requirements in gaging)

NPT American Standard Taper Pipe Threads for General Use ANSI B1.20.1FED-STD-H28/7

NPTF Dryseal American Standard Taper Pipe Threads (used in all of our steel and SAE J476brass fittings) ANSI B1.20.3

FED-STD-H28/8

PTF — Dryseal SAE Short Taper Pipe Threads (mainly used in low pressure pneumatic SAE J476SAE Short and fuel applications) ANSI B1.20.3

FED-STD-H28/8

PTF — Dryseal Special Short Taper Pipe Threads ANSI B1.20.3SPL Short1)

PTF — Dryseal Special Extra Short Taper Pipe Threads ANSI B1.20.3SPL Extra Short1)

Unified Threads

UN Unified Constant Pitch Threads (standard series: 4, 6, 8, 12, 16, 20, 28, 32) ANSI B1.1FED-STD-H28/2

UNC Unified Coarse Threads ANSI B1.1FED-STD-H28/2

UNEF Unifed Extra Fine Threads ANSI B1.1FED-STD-H28/2

UNF Unified Fine Threads ANSI B1.1FED-STD-H28/2

UNS Unified Special Pitch Threads ANSI B1.1FED-STD-H28/3

UNJ Unified Controlled Root Radius Threads ANSI B1.15FED-STD-H28/4

Table A48 — Thread Designations and Standards for Threads Used in Fluid Connectors (continued on the next page)

1) Used in some pneumatic components where shortened thread depth is required because of lack of enough materialdue to component size limitations.

Reference Material


A53FluidConnectors


AThread Designations and Standards for Threads Used in Fluid Connectors (Continued)

Abbreviation Description Applicable Std.

Metric Threads

M Metric Screw Threads — M profile ISO 261ANSI B1.13MFED-STD-H28/21

M — Keg Metric Taper Threads (mainly used in Germany) DIN 158

British StandardPipe Threads

R (BSPT) British Standard Taper Pipe Threads, External BS 21ISO 7/1

Rc (BSPT) British Standard Taper Pipe Threads, Internal BS 21ISO 7/1

Rp or G (BSPP) British Standard Pipe (Parallel) Threads BS 2779ISO 228/1

Japanese StandardPipe Threads

PF1) JIS Parallel Pipe Threads JIS B202ISO 228/1

PT1) JIS Taper Pipe Threads JIS B203ISO 7/1

PS JIS Parallel Internal Pipe Threads (to mate with PT threads) JIS B203

Table A48 (Cont'd) — Thread Designations and Standards for Threads Used in Fluid Connectors

1) PF and PT threads are functionally interchangeable with BSPP and BSPT threads, respectively.These are old designations. They are being replaced with G (for PF) and R and Rc (for PT) as documents are revised.

Document Sources for Connector SpecificationsANSI American National Standards Institute

11 West 42nd Street, 13th FloorNew York, New York 10036-8002Phone: 212-642-4900Fax: 212-398-0023www.ansi.org/public/std_info.html

BSI British Standards Institution389 Chiswick High RoadLondon, W4 4ALUnited KingdomPhone: 44-181-996-9000Fax: 44-181-996-7400www.bsi.org.uk/bsis/index.htm

British Standards are also available from ANSIDIN Deutsches Institut Fur Normung

(German Institute for Standards)Burggrafenstrasse 6Postfach 1107D - 1000 Berlin 30, Germanywww.beuth.de/beuth.htm/?datenbankenEnglish translations of some GermanStandards can be obtained from:ANSI— or —Global Engineering Documents15 Inverness Way EastEnglewood, CO 80112-9660Phone: 1-800-854-7179

FED-STD Federal StandardDepartment of Defense Single Stock PointCommanding OfficerNaval Publications and Forms Center5801 Taber AvenuePhiladelphia, PA 19120-5099

ISO International Organization for StandardizationCase Postale 56I, Rue de VarembeCH - 1211 Geneve 20Switzerlandwww.iso.ch/infoe/catinfo.htmlISO Documents are also available from ANSI

JIS Japanese Industrial StandardsPublished by Japanese Standards Association1-24 Akasaka 4Minto-ku, Tokyo 107-8440JapanPhone: 81-3-3583-8000Fax: 81-3-3586-2014English translations of some JapaneseStandards can be obtained from ANSI

SAE SAE International400 Commonwealth DriveWarrendale, PA 15096-0001Phone: 412-776-4841Fax: 412-776-0002www.sae.org/prodserv/stds/stdsinfo/standard.html

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A-GenTech

Documents

port threadiso nptf4

tap drill depths

maximum flow rate

minor surface imperfections

operating temperature range

brass cuni cupro

port tapping tools

maximum operating pressure