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Notes: The material in this catalogue is for general information. For specific performance data and proper material selection, consult your IFC representative. Although every attempt has been made to ensure that the information contained in this catalogue is correct IFC Inc. reserves the right to change designs, materials and/orspecifications without notice.
Products:➢ Standard line of Temporary, Tee, Y, Basket and Duplex strainers.➢ Custom strainers to meet individual space or performance requirements.➢ Automated self-cleaning strainers/systems.➢ Screens and baskets.
Parts List and Standard MaterialsPart Carbon Steel 304 Stainless Steel
Ring A36 A240-304
Handle A36 A240-304
Perforated Plate A36 A240-304
Mesh (1) A276-304 A276-304
(1) When required and when used.
General:1. Strainers suitable for large differential pressures are available.
Please see page 30 for standard ratings.2. Mesh lined strainers manufactured for unidirectional
flow cannot be used for bi-directional flow.Please specify the bi-directional flow requirement when ordering.
3. Please specify if handles are to be stamped with tagnumbers when ordering.
Standard Construction Details
Standard Features➢ Standard sizes from 3/4” - 48”.➢ Used primarily for new pipeline start-up or where solid loading is minimal.➢ Filtration as fine as 40 microns available.➢ Available in conical, basket and plate configurations.➢ Available flat faced, raised face or RTJ with or without face serrations.➢ All 304 SS construction is standard. Construction in other materials is
available (i.e carbon steel, monel, hastelloy, titanium, etc.).➢ May be installed in horizontal or vertical pipelines with cone pointed
upstream or downstream.➢ Strainer size and pressure rating is stamped on handle.
General:1. For further optional features see pages 21-22. 2. Other perforations and screen materials available.
Please see page 24.
3. For pressure loss information see page 25.4. For ordering information please see page 38.5. Dimensions shown are subject to change.
Contact factory for certified prints when required.
Dimensional DataSize A (O.D.) B (I.D.) C D (Basket Length) E (Cone Length) F (2) Weightin in in in in in in Lb.(mm) (mm) (mm) (mm) (mm) (mm) (mm) (Kg.)
Parts List and Standard Materials (Flanged End)Part Carbon Steel Stainless Steel (1)Shell & Nozzles A53 E/B / A106-B A312Reinforcement Pads (3) A516-70 A240Flanges A105 A182Coupling/threadolets: A105 A182Plug A105 A182Screen Retainer Ring A36 A240Screen (2) 304 SS 304 SSGasket (2) 304 SS Spiral Wound 304 SS Spiral WoundStud A193-B7 A193-B8-1Nut A194-2H A194-8(1) 304 SS strainers use 304 grade material. 316 SS strainers use 316 grade
material. Dual rated material may be used.(2) Recommended Spares.(3) When required and when used.
Parts List and Standard Materials (Grooved End)Part Stainless SteelShell & Nozzles A312-304Flanges A36 Zinc PlatedPlug B584 BrassCover Sizes 2-1/2” - 5” & 12”: Ductile Iron
Sizes 6” - 10”: 304 SSScreen (1) 304 SSGasket (1) EPDMBolts B633Nuts B633(1) Recommended Spares.(2) Lead-free construction complies with California Prop. 65
andproposed Federal Government lead-free standards.
(3) Single, two-bolt, grooved style cover provides quick andeasy access to screen.
Standard Features➢ Standard sizes from 2” - 24”.➢ Available with RF or RTJ flanged (ASME B16.5), Buttweld (ASME
B16.9) or grooved end connections.➢ Standard thru bolt or grooved cover design.➢ Custom modifications are available.➢ May be installed in horizontal or vertical pipelines.➢ All welders are qualified to ASME Section IX.➢ Strainers designed to meet the requirements of ASME B31.1 and/or ASME B31.3.➢ 304 SS perforated screens are standard.➢ Drains connections are standard and are furnished with plug.➢ Vents, differentials and special covers are optional.
Upper Pressure Limits (Non-Shock) and Lower Temperature Limits (Unless otherwise specified)IFC Model Body Material Size Range Maximum Design Low Temperature Limit –
in. (mm) Pressure psig (Bars)(1) M.D.M.T. – °F (°C)
Y150FSS4LBW / Y150FSS6LBW 304L / 316L SS 2” - 12” (50 - 300 mm) 230 (15.86) (3) -20 (-28.9)(1) All strainers will be designed to the maximum design pressure unless an alternative design pressure / temperature combination is
specified. In many cases a cost savings will result if lower design pressures are acceptable.(2) M.A.W.P. at 150°F.(3) M.A.W.P. at 100°F.
General:1. For further optional features see pages 21-22. 2. Other perforations and screen materials available.
Please see page 24.
3. For pressure loss information see page 26.4. For ordering information please see page 38.5. Dimensions shown are subject to change.
Contact factory for certified prints when required.
IFC Series Y125, Y150 and YG125SS4GW Dimensions
SERIESY150F
SERIESY125G
Standard ScreensFlanged End Grooved End
Size Range Opening Size range Opening2”- 8” (50 mm - 200 mm) 0.125 in. (3.2 mm) 2.5”-5” (65 mm - 125 mm) 0.063 in. (1.5 mm)10”- 12” (250 mm - 300 mm) 0.125 in. (3.2 mm) 6”-8” (150 mm - 200 mm) 0.125 in. (3.2 mm)14”- 24” (350 mm - 600 mm) 0.188 in. (4.8 mm) 10”-12” (250 mm - 300 mm) 0.188 in. (4.8 mm)
Parts List and Standard MaterialsPart Carbon Steel Low Temp.CarbonSteel (-50°F) Stainless Steel (1)Body A234-WPB A420-WPL6 A403-WPFlanges A105 A350-LF2 A182Screen (2) 304 SS 304 SS 304 SSInternal support ribs: Carbon Steel 304 SS 304 SSCoupling/threadolets A105 A350-LF2 A182Plug (3) A105 A350-LF2 A182Gasket (2) 304 SS Spiral Wound 304 SS Spiral Wound 304 SS Spiral WoundStud A193-B7 A193-B7 A193-B8-1Nut A194-2H A194-2H A194-8(1) 304SS strainers use 304 grade material. 316SS strainers use 316 grade material. Dual rated material may be used.(2) Recommended Spares.(3) When required and when used.(4) NACE MR01-75 qualification available upon request. Material specifications will change.(5) Also available in other alloys.
Upper Pressure Limits (Non-Shock) and Lower Temperature Limits (Unless otherwise specified)IFC Model (RF Flanged) Body Material Maximum Design Pressure – Lower Temperature Limit –
at 100°F – psig (Bars) (1) M.D.M.T. – °F (°C)T150FSBW Carbon Steel 285 (19.65) -20 (-28.9)T150FLCBW Low Temp. Carbon Steel 285 (19.65) -50 (-45.6)T150FSS4BW / T150FSS6BW 304 / 316 SS 275 (18.96) -20 (-28.9) Optional -425 (-253.9)T150FSS4LBW / T150FSS6LBW 304L / 316L SS 230 (15.86) -20 (-28.9) Optional -425 (-253.9)T300FSBW Carbon Steel 740 (51.02) -20 (-28.9)T300FLCBW Low Temp. Carbon Steel 740 (51.02) -50 (-45.6)T300FSS4BW / T300FSS6BW 304 / 316 SS 720 (49.64) -20 (-28.9) Optional -425 (-253.9)T300FSS4LBW / T300FSS6LBW 304L / 316L SS 600 (41.37) -20 (-28.9) Optional -425 (-253.9)T600FSBW Carbon Steel 1480 (102.04) -20 (-28.9)T600FLCBW Low Temp. Carbon Steel 1480 (102.04) -50 (-45.6)T600FSS4BW / T600FSS6BW 304 / 316 SS 1440 (99.28) -20 (-28.9) Optional -425 (-253.9)T600SS4LBW / T600FSS6LBW 304L / 316L SS 1200 (82.74) -20 (-28.9) Optional -425 (-253.9)(1) All strainers will be designed to the maximum design pressure at 100°F unless an alternative design pressure / temperature combination is specified.(2) Lower and higher M.D.M.T.s are available upon request.
Standard Features➢ Standard Sizes from 2” - 24”. Larger sizes available upon request.➢ Available with RF or RTJ flanged (ASME B16.5) or Buttweld (ASME
B16.9) end connections.➢ Standard thru bolt cover design.➢ Three flow configurations are available.➢ 304 SS perforated screens are standard.➢ Upstream and downstream screen supports allow for bi-directional flow (1).➢ May be installed in horizontal or vertical pipelines.➢ All welders are qualified to ASME Section IX.➢ Strainers designed to meet the requirements of ASME B31.1, ASME
B31.3 and/or ASME Section VIII, Div. 1.➢ Drains, vents, differentials and special covers are optional.
(1) This requirement must be specified for strainer screens requiring mesh lining.
IFC Series B125, B150, B300 and B600 Fabricated Basket Strainers
Parts List and Standard MaterialsPart Carbon Steel LowTemp.CarbonSteel (-50° F) Stainless Steel (1)Shell A53 E/B / A106-B A333-6 A312Nozzles A53 E/B / A106-B A333-6 A312Reinforcement Pads (3) A516-70 A516-70 A240Flanges A105 A350-LF2 A182Heads A234-WPB / A516-70 A420-WPL6 A403-WPCoupling/threadolets A105 A350-LF2 A182Plug A105 A350-LF2 A182Basket (2) 304 SS 304 SS 304 SSGasket (2) 304 SS Spiral Wound 304 SS Spiral Wound 304 SS Spiral WoundStud A193-B7 A193-B7 A193-B8-1Nut A194-2H A194-2H A194-8(1) 304SS strainers use 304 grade material. 316SS strainers use 316 grade material. Dual rated material may be used.(2) Recommended Spares.(3) When required and when used.(4) NACE MR01-75 qualification available upon request. Material specifications will change.(5) For strainers designed to ASME Section VIII, Div. 1 the “A” designation becomes “SA”.
Standard Features➢ Standard sizes from 2” - 24”. Larger sizes available upon request.➢ Available with RF or RTJ flanged (ASME B16.5) or Buttweld (ASME
B16.9) end connections.➢ Standard thru bolt cover design.➢ Custom designs are available.➢ Perforated screens are standard.➢ May be installed in horizontal pipelines.➢ All welders are qualified to ASME Section IX.➢ Strainers designed to meet the requirements of ASME B31.1, ASME
B31.3 and/or ASME Section VIII, Div. 1.➢ Drain is standard and is complete with plug.➢ Vents, differentials and special covers are optional.
Upper Pressure Limits (Non-Shock) and Lower Temperature Limits (Unless otherwise specified)
IFC Model (Flanged) Body Material Maximum Design Pressure Lower Temperature Limit -at 100°F psig (Bars) (1) M.D.M.T. °F (°C)
B125FSBW5 Carbon Steel - Epoxy Coated 175 psi Water -20 (-28.9)B150FSBW Carbon Steel 285 (19.65) -20 (-28.9)B150FLCBW Low Temp. Carbon Steel 285 (19.65) -50 (-45.6)B150FSS4BW / B150FSS6BW 304 / 316 SS 275 (18.96) -20 (-28.9) Optional -425 (-253.9)B150FSS4LBW / B150FSS6LBW 304L / 316L SS 230 (15.86) -20 (-28.9) Optional -425 (-253.9)B300FSBW Carbon Steel 740 (51.02) -20 (-28.9)B300FLCBW Low Temp. Carbon Steel 740 (51.02) -50 (-45.6)B300FSS4BW / B300FSS6BW 304 / 316 SS 720 (49.64) -20 (-28.9) Optional -425 (-253.9)B300FSS4LBW / B300FSS6LBW 304L / 316L SS 600 (41.37) -20 (-28.9) Optional -425 (-253.9)B600FSBW Carbon Steel 1480 (102.04) -20 (-28.9)B600FLCBW Low Temp. Carbon Steel 1480 (102.04) -50 (-45.6)B600FSS4BW / B600FSS6BW 304 / 316 SS 1440 (99.28) -20 (-28.9) Optional -425 (-253.9)B600FSS4LBW / B600FSS6LBW 304L / 316L SS 1200 (82.74) -20 (-28.9) Optional -425 (-253.9)(1) All strainers will be designed to the maximum design pressure at 100°F unless an alternative design pressure / temperature
combination is specified. In many cases a cost savings will result if lower design pressures are acceptable.(2) Lower and higher M.D.M.T.s are available upon request.
General:1. For further optional features see pages 21-22. 2. Other perforations and screen materials available.
Please see page 24.
3. For pressure loss information see page 27.4. For ordering information please see page 38.5. Dimensions shown are subject to change.
Contact factory for certified prints when required.
IFC Series B125 and B150 Dimensional Data
Standard ScreensSeries 150B - Style 1 Series 125B - Style 5
Size Range Opening Size Range Opening2”- 8” (50 mm - 200 mm) 0.125 in. (3.2 mm) 3”- 10” (80 mm - 250 mm) 0.25 in. (6.4 mm)10”- 12” (250 mm - 300 mm) 0.125 in. (3.2 mm)14”- 24” (250 mm - 600 mm) 0.188 in. (4.8 mm)
IFC Series DB125 Pressure Temperature Chart (Using IFC BI125W/L Butterfly Valves)
Upper Pressure Limits (Non-Shock)Size M.A.W.P.
5” - 12” (125 - 300 mm) 200 psig.
Lower Temperature LimitsBody Material Lower Limit °F (°C)
A126-B -20 (-28.9)
Design Features➢ Inlet/outlet connections are FF flanged in accordance with
ASME B16.1.➢ Four individual operated butterfly valves (IFC series
BI125W/L) are used to divert and isolate flow.➢ 304 SS perforated screens are standard.➢ Cast components.➢ Quick opening clamp covers (MAWP 50 psig) are optional.➢ Drain connections furnished with plug as standard.➢ Inexpensive construction and quick delivery.
Parts List and Standard MaterialsPart Description Specifications
Basket Strainers x 2 IFC Model B125FIB1 or B125FIC1 ASTM A126-BScreen (1): Type 304 SSCover Gasket (1): Graphite
Butterfly Valves x 4 IFC Series BI125W/L ASTM A126-BSeat: EPDM or Buna-NDisc: 316 SS, Bronze or
Ductile Iron.
Flanged Fittings x 4 Cast Iron ASTM A126-B
Hardware: Carbon Steel ASTM A193-B7,A194-2H
Gaskets Rubber
(1) Recommended Spares.(2) Consult the IFC “Simplex Basket Strainer” and “Butterfly Valve”
brochures for detailed information on these items.
IFC Series DB150 Pressure Temperature Chart (Using IFC BI125W/L Butterfly Valves)
Design Features➢ Standard sizes from 6” - 24”.➢ Available with RF or RTJ flanged (ASME B16.5) or Buttweld
(ASME B16.9) end connections.➢ Standard thru bolt cover design.➢ Custom modifications are available.➢ May be installed in horizontal pipelines.➢ All welders qualified to ASME Section IX.➢ Strainers designed to meet the requirements of ASME B31.1,
ASME B31.3 and/or ASME Section VIII, Div.1.➢ Four individual operated butterfly valves (IFC series
BI125W/L) are used to divert and isolate flow. Ball, gate andother isolation valve types may be used if requested.
➢ 304 SS perforated screens are standard.➢ Drains and differential connections are standard and are
furnished with plug.➢ Vents and special covers are optional (See pages 21-22).
Parts List and Standard MaterialsPart Description Specifications
Carbon Steel Stainless Steel (1)Basket Strainers x 2 IFC Series B150 (2) Fabricated Carbon Steel Fabricated Stainless Steel
Screen (3): Type 304 SS Type 304 SSCover Gasket (3): 304 SS Spiral Wound 304 SS Spiral Wound
Butterfly Valves x 4 IFC Series BI125W/L (4) ASTM A126-B (5) ASTM A126-B (5)Seat: EPDM or Buna-N EPDM or Buna-NDisc: 316 SS, Bronze or Ductile Iron. 316 SS, Bronze or Ductile Iron.
Gaskets 304 SS Spiral Wound 304 SS Spiral Wound(1) 304 SS strainers use 304 grade material, 316 SS strainers use 316 grade material, etc.(2) See page 13 for detailed information.(3) Recommended Spares.(4) Consult the IFC “Butterfly Valve” brochure for detailed information.(5) Non-wetted.(6) For strainers designed to ASME Section VIII, Div. 1 the “A” designation becomes “SA”.
(2) Dimensions can be modified to suit the customers requirements. Please consult factory.(3) Legs and other supports are available. Please contact factory.(4) Vents are optional.
(2) Dimensions can be modified to suit the customers requirements. Please consult factory.(3) Legs and other supports are available. Please contact factory.(4) Vents are optional.
General:1. For further optional features see pages 21-22. 2. Other perforations and screen materials available.
Please see page 24.
3. For pressure loss information see page 27.4. For ordering information please see page 38.5. Dimensions shown are subject to change.
Contact factory for certified prints when required.
Dimensional Data (Style 3)Size (1) A B C D E F G NPT H NPT Weight Lb. (kg.)in in in in in in in in in(mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) Cover Unit
(2) Dimensions can be modified to suit the customers requirements. Please consult factory.(3) Legs and other supports are available. Please contact factory.(4) Vents are optional.
Standard ScreensSize Range Opening Gauge Thickness
2”- 8” (50mm-200mm) 0.125 in. (3.2 mm) 2210”- 12” (250mm-300mm) 0.125 in. (3.2 mm) 1614”- 24” (350mm-600mm) 0.188 in. (4.8 mm) 11
The quick release covers and cover removal aids available on IFC fabricated strainers aredistinguished by their compact size and functional design. Materials of construction are inaccordance with ASME specifications and manufacturing complies with the applicable rules ofthe ASME Code for Pressure Piping and with the ASME Boiler and Pressure Vessel Code.
The Davit assembly is used to enable the user toswing the cover away from the strainer in orderto facilitate basket or screen removal forcleaning. It’s primary use is for larger sizedstrainers where cover removal is difficult. Thedavit assembly is an inexpensive alternative toquick release covers, especially when operatingconditions require a bolted cover to be utilized.
The T-bolt hinged cover is used for nominalpressure applications while being the mostinexpensive closure available on IFC fabricatedstrainers. The T-bolt hinged cover is openedquickly and easily using an O-Ring as a seal. Theoperator merely loosens the T-bolts until theyclear the holding lugs and allow the head to beswung open on it’s hinge. Camlock and Break-over Wrench assemblies are also available thateliminate the need for a wrench.
The yoke hinged closure is a true ANSI ratedclosure. Used primarily on high pressureapplications, yoke hinged covers are availablewith 150#, 300#, 600#, 900#, and 1500# ANSIratings. Yoke hinged covers available on IFCfabricated strainers are available with a widerange of operating aids ranging from single-lever chain and sprocket drives to complete-ly automated types. O-rings are utilized as thesealing member.
The threaded cover closure consists of a capwhich fastens to a hub that has been welded tothe strainer body. The female cap is threadedonto the male hub and an O-Ring is utilized tomake the seal. The placement of this O-Ringprevents corrosion of the closure threadsallowing for long, trouble free service. Thethreaded closure can be utilized on bothnominal and high pressure applications.
Closure Type
Comparison Bolted Bolted with davit Swing Bolt Hinged Yoke ThreadedItem Type B Type BD Type H Type Y Type T
Design Features:IFC designs and manufactures baskets for all makes of basket andduplex strainers. The range of materials and size of units is unlimited.
IFC is able to provide baskets manufactured from:
➢ Perforated Plate➢ Mesh or Mesh/Perf. combination➢ Wedge Wire➢ Electron Beam Small Hole Perforated Plate
Using the above processes or combination thereof, IFC can providescreens and baskets suitable for a wide range of applications.
B
D
E
A
C
C
D
B
FE
A
Performance Requirements
Description Customers Requirement
Required Level of Filtration
Material of Construction
Minimum Specified Burst Pressure
Flow Direction
Other
Screen/Basket ChecklistKindly photocopy this page and fill out the pertinent information.
Engineering DataScreen Openings for Basket StrainersFACTORS TO CONSIDER
1. PurposeIf the basket strainer is being used for protectionrather than direct filtration, IFC’s standard screenswill suffice in most applications.
2. ServiceWith services that require extremely sturdy screens,such as high pressure/ temperature applications or ser-vices with high viscosities, IFC recommends thatperforated screens without mesh liners be used. Ifmesh is required to obtain a certain level of filtra-tion, then IFC recommends a trapped perf/mesh/perfcombination.
3. Filtration LevelWhen choosing a perf. or a mesh/perf. combina-tion attention should be given to ensure overstrainingdoes not occur. As a general rule the specifiedlevel of filtration should be no smaller than half thesize of the particle to be removed. If too fine a fil-tration is specified the pressure drop through thestrainer will increase very rapidly, possibly causingdamage to the basket.
1/4”
Dia
. -
40%
O.A
.
3/16
” D
ia.
- 50
% O
.A.
5/32
” D
ia.
- 58
% O
.A
1/8”
Dia
. -
40%
O.A
.
3/32
” D
ia.
- 39
% O
.A
1/16
” D
ia.
- 37
% O
.A.
3/64
” D
ia.
- 36
% O
.A.
1/32
” D
ia.
- 40
% O
.A.
0.02
7” D
ia.
- 23
% O
.A.
20 M
esh
- 49
% O
.A.
0.03
5” O
pen
ings
30 M
esh
- 45
% O
.A.
0.02
2” O
pen
ings
40 M
esh
- 41
% O
.A.
0.01
6” O
pen
ings
60 M
esh
- 38
% O
.A.
0.01
0” O
pen
ings
80 M
esh
- 36
% O
.A.
0.00
8” O
pen
ings
100
Mes
h -
30%
O.A
.0.
006”
Op
enin
gs
Notes: 1. Screen openings other than those shown above are readily available. IFC inventoriesvarious mesh sizes as fine as 5 micron and perforated plate as coarse as 1/2” Dia.
2. Screens are available in a wide range of materials. IFC inventories various screen material incarbon steel, stainless steel (304, 316), alloy 20, monel 400, hastalloy C and titanium grade 2.
3. Custom manufactured screens are available upon request. Please consult factory.
Engineering DataTemporary Strainer Pressure Drop - Liquids
TEMPORARY STRAINER PRESSURE DROP - LIQUIDS(SIZES 3/4" - 5")
FLOW RATE (GPM)
1
0.1
10
1
10 100 1000
PRES
SURE
DRO
P (P
SID)
3/4 1
1 1/
41
1/2
2
2 1/
2
3 4 5TEMPORARY STRAINER PRESSURE DROP - LIQUIDS
(SIZES 6" - 48")
FLOW RATE (GPM)
100
0.1
10
1
1000 10000 100000
PRES
SURE
DRO
P (P
SID)
6 8 10 12 14 16 18 20 24 30 36 42 48
Notes: 1. Pressure drop curves are based on water flow with standard screens. See page 28 for correction factors to be used with other fluids and/or screen openings.
Engineering DataFabricated Y and Tee Strainer Pressure Drop - Liquids
FABRICATED Y- STRAINER PRESSURE DROP - LIQUIDS(SIZES 2" - 24")
FLOW RATE (GPM)
10
0.1
10
1
100 1000 10000
PRES
SURE
DRO
P (P
SID)
2 3 4 5 6 8 10 12 14 16 18 20 24
TEE STRAINER PRESSURE DROP - LIQUIDS(SIZES 2" - 24")
FLOW RATE (GPM)
10
0.1
10
1
100 1000 10000
PRES
SURE
DRO
P (P
SID)
2 3 4 5 6 8 10 12 14 16 18 20 24
Notes: 1. Pressure drop curves are based on water flow with standard screens. See page 28 for correction factors to be used with other fluids and/or screen openings.
Engineering DataFabricated Basket and Duplex Strainer Pressure Drop - Liquids
FABRICATED BASKET STRAINER PRESSURE DROP - LIQUIDS(SIZES 2" - 24")
FLOW RATE (GPM)
10
0.1
10
1
100 1000 10000
PRES
SURE
DRO
P (P
SID)
2 3 4 5 6 8 10 12 1414 16 18 2024
FABRICATED DUPLEX STRAINER PRESSURE DROP - LIQUIDS(SIZES 5" - 24")
FLOW RATE (GPM)
0.1
10
1
100 1000 10000
PRES
SURE
DRO
P (P
SID)
10 12 14 16 18865 20 24
Notes: 1. Pressure drop curves are based on water flow with standard screens. See page 28 for correction factors to be used with other fluids and/or screen openings.
How to Use:1) Determine the pressure drop (P1) through the strainer with water flow and standard screens.2) If non-standard screens (i.e. 40 mesh, etc.) are being used, apply factors in chart #1 to determine
corrected pressure drop (P2).3) Multiply P1 or P2 (if used) by the specific gravity of the fluid actually flowing through the strainer to get P3.4) Using chart #2 multiply P3 by the appropriate Component Factor (CF) to get P4.5) Let P5 = P3 - P4.6) Multiply P4 by the appropriate Body Loss Factor (BF) in chart #3 to get P6.7) Multiply P5 by the appropriate Screen Loss Factor (PF or MF) in chart #3 to get P7.8) Total pressure drop P8 = P6 + P7.
Chart #1
A) Using figure 5 the pressure drop is determined to be 2.0 psid with IFC’sstandard screen.
B) Looking at page 26 we find that the % Open area of 100 mesh is 30%.C) Using chart 1 we read the correction factor to be 1.2 for 100 mesh lined
1/8” perf.D) Total pressure drop equals 2.0 x 1.2 = 2.4 psid clean.
Notes: 1. See page 24 for % Open Areas of IFC inventoried perforated plate.2. Standard screens for sizes 3/4” to 1-1/2” is approximately a 30% open area screen media.3. Standard screens for sizes 2” and larger is approximately a 40% open area screen media.
Chart #2 Chart #3
Size ComponentRange factor
(CF)
3/4” - 1-1/2” 0.25
2” - 48” 0.35
Size SCREEN OPENINGSRange Perforated Plate Mesh lined standard screens
% Screen Material Open Area % Screen Material Open Area60% 50% 40% 30% 20% 50% 40% 30%
Notes: A) See page 35 for the ratio of free area to pipe area for IFC Strainers equipped with standard screens.B) For screens other than IFC’s standard, use the following formula to calculate the ratio free area to pipe area:
where; R = Ratio free area to pipe areaAg = Gross screen area, sq. in. (See page 35)OA = Open area of screen media, % (See page 24, i.e. 1/8” perf. = 40%)Ap = Nominal area of pipe fitting, sq. in. (See page 35)
Engineering DataIFC Series TB Strainer Burst Pressure
STRAINER SIZE (In.) BURST PRESSURE (PSID)
20 25 50 75 1002 4 6 8 10 12 14 16 18 040
32 GAUGE
20 GAUGE
16 GAUGE
11 GAUGE
26 GAUGE32 GAUGE
20 GAUGE
16 GAUGE
11 GAUGE
26 GAUGE
60%50%40%30%20%
60%50%40%30%20%
➢ Locate Strainer size.➢ Follow vertical line to gauge thickness.➢ Follow horizontal line to required perforation open area.➢ Follow vertical line downwards to read burst pressure.➢ Burst pressure equals 27 psid.
Example:
Strainer Size: 10”
Screen Thickness: 11 gauge
Screen Material Open Area: 20%
2. The above chart is based on IFC’s standard dimensions. Higher burst pressure ratings are available. Please contact factory.
3. The above chart is based on a screen material of stainless steel. No safety factor is incorporated. It is the responsibility of the user to determine an acceptable safety factor.
4. See page 24 for % Open Areas of IFC’s inventoried perforated plate.
SOURCE: ASME Section VIII, Div. 1., UG-34.
t = Thickness of perforated plate, in.d = Dimension B (See page 4), in.P = Burst Pressure, psiS = Reduced allowable stress, psi
Notes:1. The above chart is to be used for strainers manufactured from perforated plate and is based on the formula:
Engineering DataIFC Series TC Strainer Burst Pressure
➢ Locate Strainer size.➢ Follow vertical line to gauge thickness.➢ Follow horizontal line to required perforation open area.➢ Follow vertical line downwards to read burst pressure.➢ Burst pressure equals 41 psid.
Example:
Strainer Size: 10”
Screen Thickness: 26 gauge
Screen Material Open Area: 30%
STRAINER SIZE (In.) BURST PRESSURE (PSID)
10 20 30 25 50 75 1001 2 3 4 5 6 8 040
32 GAUGE
20 GAUGE
16 GAUGE
11 GAUGE
26 GAUGE32 GAUGE
20 GAUGE
16 GAUGE
11 GAUGE
26 GAUGE
60%50%40%30%20%
60%50%40%30%20%
2. The above chart is based on IFC’s standard dimensions. Higher burst pressure ratings are available. Please contact factory.
3. The above chart is based on a screen material of stainless steel. No safety factor is incorporated. It is the responsibility of the user to determine an acceptable safety factor.
4. See page 24 for % Open Areas of IFC’s inventoried perforated plate.
SOURCE: ASME Section VIII, Div. 1., Appendix 1.
P = Burst Pressure, psi.S = Reduced allowable stresst = Thickness of perforated plate, in.D = Dimension B (See page 4), in.
= 15 degree
Notes:1. The above chart is to be used for strainers manufactured from perforated plate and is based on the formula:
➢ Locate Strainer size.➢ Follow vertical line to gauge thickness.➢ Follow horizontal line to required perforation open area.➢ Follow vertical line downwards to read burst pressure.➢ Burst pressure equals 56 psid.
Example:
Strainer Size: 10”
Screen Thickness: 16 gauge
Screen Material Open Area: 60%
2. The above chart is based on IFC’s standard dimensions. Higher burst pressure ratings are available. Please contact factory.
3. The above chart is based on a screen material of stainless steel. No safety factor is incorporated. It is the responsibility of the user to determine an acceptable safety factor.
4. See page 24 for % Open Areas of IFC’s inventoried perforated plate.
SOURCE: ASME Section VIII, Div. 1., Appendix 1.
P = Burst Pressure, psiS = Reduced allowable stress, psit = Thickness of perforated plate, in.R = Outside radius of screen, in.
Notes:1. The above chart is to be used for strainers manufactured from perforated plate and is based on the formula:
➢ Locate Strainer size.➢ Follow vertical line to gauge thickness.➢ Follow horizontal line to required perforation open area.➢ Follow vertical line downwards to read burst pressure.➢ Burst pressure equals 20 psid.
Example: #1
Strainer Size: 8”
Screen Thickness: 11 gauge
Screen Material Open Area: 40%
3. The above chart is based on IFC’s standard dimensions. Higher burst pressure ratings are available. Please contact factory.
4. The above chart is based on a screen material of stainless steel. No safety factor is incorporated. It is the responsibility of the user to determine an acceptable safety factor.
5. See page 24 for % Open Areas of IFC’s inventoried perforated plate.
SOURCE: ASME Section VIII, Div. 1., UG-34.
t = Thickness of perforated plate, in.d = Basket Diameter, in.P = Burst Pressure, psiS = Reduced allowable stress, psi
Notes:1. The above chart is to be used for strainers manufactured from perforated plate and is based on the formula:
Engineering DataBasket and Duplex Strainer Basket Burst Pressure
STRAINER SIZE (In.) BURST PRESSURE (PSID)
10 20 30 25 50 75 1001 2 3 4 5 6 8 040
60%50%
40%30%20%
60%50%
40%30%20%
SOLID BOTTOM
SOLID BOTTOM
32 GAUGE
20 GAUGE
16 GAUGE
11 GAUGE
26 GAUGE32 GAUGE
20 GAUGE
16 GAUGE
11 GAUGE
26 GAUGE
➢ Locate Strainer size.➢ Follow vertical line to solid thickness.➢ Follow horizontal line to solid bottom curve.➢ Follow vertical line downwards to read burst pressure.➢ Burst pressure equals 19 psid.
Example: #1
Strainer Size: 8”
Basket Type: Perforated screen with 11gauge solid flat bottom
Screen Material Open Area: 20% - 60%
2. As standard, IFC supplies baskets with perforated bottoms.3. The above chart is based on IFC’s standard dimensions. Higher burst pressure ratings are available.
Please contact factory.3. The above chart is based on a screen material of stainless steel. No safety factor is incorporated.
It is the responsibility of the user to determine an acceptable safety factor.5. See page 24 for % Open Areas of IFC’s inventoried perforated plate.
SOURCE: ASME Section VIII, Div. 1., UG-34.
t = Thickness of perforated plate, in.d = Basket Diameter, in.P = Burst Pressure, psiS = Reduced allowable stress, psi
Notes:1. The above chart is to be used for strainers manufactured from perforated plate and is based on the formula:
t = d 0.3PS
➢ Locate Strainer size.➢ Follow vertical line to gauge thickness.➢ Follow horizontal line to 40% Open Area curve.➢ Follow vertical line downwards to read burst pressure.➢ Burst pressure equals 44 psid.
Example: #2
Strainer Size: 4”Basket Type: 11 gauge perforated screen with
Engineering DataFabricated Strainer Screen Effective Areas
Notes: 1. Values shown are approximate. Contact factory for exact ratios.2. Values shown are for strainers with standard screens.3. The ratio free area to pipe area may be increased by changing perf. stagger or by using heavy wire mesh.
Nominal Gross RatioStd. Area of Sch. Screen Free Free Area
Strainer Pipe Opening 40 / Std. Pipe Area Area to PipeType Size (In.) (in.) (Sq. In.) (Sq. In.) (Sq. In.) Area
(size) inlet/outlet connections. The end connections shall be
(flanged, threaded etc.) and the body shall be complete with
a (bolted, quick-opening, etc.) cover
assembly. The strainer shall be suitable for
PSIG operating pressure at °F operating
temperature. The body shall be constructed of
(body material) while the screen shall be constructed of
(basket or screen material). A mesh lining
of (size of mesh) is required,
allowing a maximum pressure drop of
psig. The strainer shall be equipped with a
(gasket material) gasket and the strainer screen shall be able
to withstand psig differential pressure
without any deformation.
Strainers shall be IFC Model #
or approved equivalent.
Check List and Suggested SpecificationsFor ISLIP Flow Controls Inc.
Name
Company
Address
City/Town
State Zip Code
Telephone ( )
Fax ( )
Strainer Check List: When selecting a strainer, please take the factors listed below into account.This will assist us when recommending a strainer to suit your specific requirements. Please photocopythis page and fill out the pertinent information.
Installation and Maintenance Instructionsfor IFC Fabricated Strainers
Maintenance Instructions
Trouble Shooting Guidesand Diagnostic Techniques
Limited Warranty
Strainer Installation Instructions
➢ After pressurizing, inspect cover and other joints forleakage. Gasket replacement or cover tightening isnecessary if leakage occurs.
➢ If the required filtration is not taking place, ensure thescreen is installed in the correct position, that beingflush to the screen seating surfaces.
➢ Ensure all machined surfaces are free of defects andthat the inside of the strainer is free of foreign objects.
➢ For horizontal and vertical pipelines, the strainershould be installed so that the drain connection ispointed downwards.
➢ For flanged end strainers, the flange bolting should betightened gradually in a back and forth clockwise motion.
➢ Threaded end strainers should use an appropriate sealant.➢ Once installed, increase line pressure gradually and
check for leakage around joints.➢ If the strainer is supplied with a start-up screen,
monitor pressure drop carefully.All products are warranted to be free of defects inmaterial and workmanship for a period of one year fromthe date of shipment, subject to the limitations below:If the purchaser believes a product defective, thepurchaser shall:(a) Notify the manufacturer, state the allegeddefect and request permission to return the product.(b) If permission is given, return the product withtransportation prepaid. If the product is accepted forreturn and found to be defective, the manufacturer will,at its discretion, either repair or replace the product,f.o.b. factory, within 60 days of receipt, or refund thepurchase price.Other than to repair, replace or refund describedabove, the purchaser agrees that themanufacturer shall not be liable for any losses,costs, expenses or damages of any kind arisingout of the product, its use, installation orreplacement, labeling, instructions, informationor technical data of any kind, description ofproduct use, sample or model, warnings or lackof foregoing. No other warranties, written ororal, expressed or implied, including thewarranties of fitness for a particular purpose andmerchantability, are made or authorized. Noaffirmation of fact, promise, description ofproduct use or sample or model shall create anywarranty from the manufacturer, unless signedby the president. These products are notmanufactured, sold or intended for personal,family or household purposes.
For maximum efficiency, determine the length of time ittakes for the pressure drop to double that in theclean condition. Once the pressure drop reaches anunacceptable value, shut down line (For Duplex Strainersdivert flow to other chamber) and follow the “ScreenRemoval Instructions” above.A pressure gauge installed before and after the strainerin-line will indicate pressure loss due to clogging andmay be used to determine when cleaning is required.
Screen Removal Instructions(Y, Basket, T and Duplex)➢ Drain piping (For Duplex Strainers, isolate required chamber).➢ Vent line to relieve pressure.➢ Loosen cover and open to access screen.➢ Remove, clean and replace screen in original position
(Note: In some instances, a high pressure water jet orsteam may be required for effective cleaning)
➢ Inspect cover gasket for damage. If necessary, replace.(Note: If spiral wound gaskets have been used, theymust be replaced and can not be used again).
➢ Tighten cover. The strainer is ready for line start-up.CAUTION SHOULD BE TAKEN DUE TO POSSIBLEEMISSION OF PROCESS MATERIAL FROM PIPING.ALWAYS ENSURE NO LINE PRESSURE EXISTSWHEN OPENING COVER.