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3GEORGE FISCHER
General Information 4Working with plastic pipes and fittings
5
INSTAFLEX technical information 7
Flange connections/unions 13 FIRESTOP Firesleeves 14
Specification guide for consultants 15
Standards & Regulations 20
Product Range 21Pipe 22
Pipe supports and brackets 24Accessories 25
Armaflex Insulation 26
Firestop 26
Fittings for Socket Fusion Jointing 27Unions 32
Flange Jointing (Socket Fusion) 36
Fittings for Electrofusion Jointing 37
Manifold Plus Compression Jointing System 43
Flange Jointing - Electrofusion 50
Valves 51INSTAFLEX (PB) Valves 51PB to PVC-C Quarter Turn Valve
54
Metal Butterfly Valves Type 037 55
INSTAFLEX Installation Quick Reference Guide 56
Contents Page
The technical data given in thispublication are for
generalinformation purposes only andare subject to change.
Theyimply no warranty of whateverkind. Please consult our
GeneralConditions of Supply.
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4 GEORGE FISCHER
PB PolybutylenePE PolyethylenePP Polypropylened Pipe outside
diameterEPDM Ethylene propylene rubbers Wall thickness of the
pipedCu Copper pipe outside diameterDN Nominal bore DiameterLK Hole
circleSW Dimension across flats (A/F)G Pipe thread, not pressure
tight in
the thread (with flat seat) to ISO228
R Taper male thread, pressure tightin the thread to ISO 7
Rp Parallel female thread, pressuretight in the thread to ISO
7
M Metric thread to ISO 261m MeterSP Items per standard packg
Gramme
Explanation of signs
Dimensions
All dimensions are given in mm andare intended as nominal or
averagesizes. Subject to alteration resultingfrom modifications in
design.
For compressed air applications with air containing mineral oil,
EPDMgaskets must be replaced by NBR units.
This mainly concerns unions and flange connections.
NBR gaskets are not contained in this Product Range. Please
contact theGeorge Fischer sales consultant or sales support office
assigned to yoursales area.
and INSTAFLEX are registered trademarks.
Always protect plastic pipes and fittings from external
influences.Direct sunlight and the effects of impact and pressure
shoud be avoided.Always leave the pipes and fittings in its
packaging until ready to use. Donot storage outside.
General Information
!
n.b. inch o.d. metric n.b. metric
3/8 16 101/2 20 153/4 25 20
1 32 25
11/4 40 32
11/2 50 40
2 63 50
21/2 75 65
3 90 80
4 110 100
4 125 110
5 140 125
6 160 150
6 200 180
8 225 200
Inch - Metric Equivalents
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5GEORGE FISCHER
Working with plastic pipes and fittings
W R O N G R I G H T
Transport and storage of plastic pipes
Plastics are materials sensitive toimpact and crushing at
lowtemperatures.The temperature limit depends on therelevant
material.
PP-RPVC-C +5 C
PB 10 C
VPE 20 C
Below these temperatures pipes andfittings would have to be
protectedparticularly from impacts, crushingand other external
mechanicalstresses.
Plastic pipes and plastic fittings must be protected in
principle from externalinfluences. Direct sunlight, impacts and
compressive stresses should beavoided. The pipes and fittings must
be left in their packing until used. Theyshould not be stored out
of doors.
Safety instruction
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6 GEORGE FISCHER
INSTAFLEX
The modern versatile piping system
A full range of pipe and fittings makes the INSTAFLEX system
highly versatile.
Allowing prefabrication and beinglightweight make the
installation of anINSTAFLEX system highly cost effective.
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7GEORGE FISCHER
What is INSTAFLEX?
The versatile pressure pipingsystem for building services
For use on:
Hot & cold water services
Heating systems
Chilled water
Compressed airlines
The INSTAFLEX system has beendesigned for use as a
completebuilding services piping system whichprovides a solution to
the problemsfaced by traditional materialsnamely:
No corrosion
No encrustation/limescale
No noise emmission
Long service life
High flexibility
Fast assembly
Lightweight
Launched in 1980 into mainlandEurope and into the UK in 1995
thissystem has provided installers anddesigners with a flexible
system whichmeets the stringent demands ofmodern building design
andconstruction.
MaterialManufactured from polybutylene(PB), a high performance
plasticsmaterial, which was specificallydeveloped for use in piping
systemsfor potable water. Its inherentcharachertistics make it
ideal for thispurpose and for other buildingservices
applications.
RangeA full range of pipe and fittings areavailable with
adaptors to join ontoother piping system components.
Pipe & fittings 16 -110mm Pipe-in-sleeve Accessories &
jointing equipment Valves
Jointing & installationThe INSTAFLEX system utalises
threecomplimentary jointing techniques:
socket fusion
electrofusion
compression fittings
Each of which have advantagesdepending on the installation
inquestion. Most installation tend toincorporate more than one type
ofjointing method.Due to the flexibility of the system andthe
material's lightweight significantsavings can be made on
installationtime and costs.
Technical advice & supportGeorge Fischer's expertise
andtechnical knowledge in the pipingsystem field is recognised
worldwide.In order to assist designers andinstallers in the optimum
use of theINSTAFLEX system the followingsupport is available :
On-site support & advice Design take-offs Certificated
jointing training courses Technical support CAD Custom products
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8 GEORGE FISCHER
Polybutylene is a thermoplastic fromthe polyolefine family. It
is a semi-crystalline material. Its density is in therange of other
thermoplastics such asPE or PP. It has good mechanicalproperties
and chemical resistancemaking polybutylene an importantmaterial for
piping systems.
PB is created by polymerizingbutylene (C4H8) and is, therefore,
anecologicaly safe hydrocarbonproduct.
The material which we use, may beused with foodstuffs due to its
safestabilizing agent. The fittings andpipes are odourless and
tasteless aswell as physiologically safe. It isperfect for use in
drinking waterinstallations.
Like PE and PP, PB belongs to thegroup of co-valent materials,
whosesurfaces do not swell and are notsoluable. Solvent cementing
is,therefore, not possible without specialsurface treatment. PB is,
however,easily fused. Compression, socketfusion and electrofusion
jointing canbe used.
Flexibility, even at low temperatures,high thermal stability
makepolybutylene a modern material. Notonly for hot and coldwater
distribu-tion but also in industrial applications and com-pressed
air.
George Fischer are able to supplymetric socket and electro
fusion pipe,fittings and valves as well as mechan-ical joints in
the following size range.
socket fusion 16mm - 110mm o.d. electro fusion 16mm - 110mm
o.d.
Property PB Unit
Density 0.93 g/cm3
Melt flow index MFI @90/5 0.4 g/@0 min
Yield strength 17 N/mm2
Elongation at fracture >125 %
Bending-creep modulus (@ min.) 800 N/mm2
Impact strength 23 C no failure mJ/mm2
Impact strength 20 C 40 mJ/mm2
Crystalline fusion temperature 0.013 C
Coefficient of linear expansion 0.13 mm/mC
Thermal conductivity at 20 C 0.22 W/m . K
Surface resistance 0.007 W
Normal working temperature range -15 to 95 C
Properties of Polybutylene
Testingspeed@25 mm/min
The physical values shown in the table beloware to be treated as
guide values.
What is Polybutylene (PB)?
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9GEORGE FISCHER
Time in hours
Creep behaviourCreep behaviour is an importantfactor in plastic
construction. It mustbe given special consideration withjointing
and fastening techniques.It can be seen from the adjacentgraph that
with a creep test, where aweight is hung from a piece of PB
itscreep is slower than PEX
Tensile strength 8 MPa (8 N/mm2)Temp. 20 C
PEX
PB
10-3 103100
10
20
Cre
ep
%
Creep is the extension of amaterial in relation to timeunder
constant load andconstant temperature.
The E-modulus is the ratioof stress to strain in theelastic
range of thematerial.
Determining the expansionloop according toCEN/TC. 155/WG 5C
for:PB 10PEX 12PE 27PVC-C 34PP-R 30Steel 94Cu 54Stl.Steel 61
Expansion loop comparison
Although the coefficient ofexpansion for PB is not the lowestdue
to the material's flexibility (i.e.it's modulus of elasticity is by
farthe lowest), the ability to cater forany expansion or
contraction ismost favourable
Using a typical example, withvalues
Temp difference t = 50CPipe diameter d = 40mmPipe length =
10m
The expansion of L of thedifferent materials is as follows:
PB L = 65mmPEX L = 100mmPVC-C L = 40mmPP - R L = 90mmSteel L =
6mmCopper L = 9mmStl. Steel L = 9mm
using the formula
LLLLLBSBSBSBSBS = C x = C x = C x = C x = C x L x dL x dL x dL x
dL x dwhere LBS = expansion loop leg
L = primary pipeexpansion
d = outside dia.. of pipeC = factor
expansion
L
10m
LBS
Therefore, under the sameconditions the expansion legrequired
for the different materialswould be as follows:
Material Expansion leg LBS
PB 510PEX 760PVC-C 1360PP-R 1800Steel 1450Cu 1030Stl. Steel
1150
As can be seen from the above theexpansion leg required for PB
isconsiderably less than all the othermaterials.
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10 GEORGE FISCHER
Minimum breaking strength The minimum breaking strength isgiven
as the hoop stress .
Comparison of minimum breakingstrengths of PB, PEX, PP-R,
PVC-C,applying to a material life expectan-cy of one year at
different tempera-tures.
Long-term BehaviourThe long-term behaviour is therelationship
between the hoop stress,the temperature and the lifeexpectancy of a
material.Allowable permanent internalpressure in bar:
P perm =
Hoop stress is based on a servicelife of 50 years and a
constantoperating temperature of 70 C,without considering the
safety factorfor:PB 7.5PEX 5.3PP-R 3.1PVC-C 7.5
Ho
op
stress
in M
Pa
100
100908070
50
40
30
60
20
2
3
4
5
1098
6
7
20 9030 8070605040
Temperature in C
MPa
50
40
30
20
Ho
op
str
ess
in M
Pa
1098
7
6
4
5
3
2
10.9
0.5
0.6
0.70.8
0.1 101 102 103 104 105 106
Time in hours
} {R
PEX
Long-term behaviour of pipes at 70C
= Sigma/Break
The hoop stress in the pipewall is the result of
internalpressure. If this pressure iscontinuous the pipe
willfracture with time
Safety against breakagedue to stress from internalpressure is
given with therelationship between pipewall stress to hoop
stress.
1 MPa = 1 N/mm2
PVC-CPB
PP
PEX
PVC-CPB
PP
50 years
Pperm Internal pressures Pipe wall thicknessd Pipe outer-SF
Safety factor
RMinimum breakingstrength (R =
Rupture)
20 s 6R
(d-s) SF
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11GEORGE FISCHER
In reference to the 70Ccurve with a service life of50 years and
safety factorincluded.
Comparison of potablewater pipes used indomestic
installations.
Comparision of flow characteristicsThe pipe wall thickness is
determinedby the hoop stress, the pipe outerdiameter and the
allowableoperating pressure at 20C.
Pipe Material PB PEX PP-R PVC-C
Pipe dimension d 40 x 3.7 5.5 6.7 4.5 mm
Pipe inner diameter 32.6 29.0 26.6 31.0 mm
Pipe inner surface area 834 660 555 754 mm2
Nominal pressure PN 16 PN 20 PN 20 PN 25
Flow velocity at = 2.0 l/s 2.4 3.0 3.6 2.7 m/s
Pressure drop at = 2.0 l/s 18.4 32.5 49.5 23.6 mbar/m
v = Velocity
Example for pipes 40mm o.d., with DVGW/SVGW approval
Because at any given size the wallthickness of PB pipe is less
than theother materials the flow velocity andpressure drop will be
best.
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12 GEORGE FISCHER
Temperature/Pressure ratingThe George Fischer INSTAFLEX system
ismanufactured from polybutylene which isa thermoplastic material.
As the namethermoplastic suggests, it is affected bytemperature.
When the temperature ofthe liquid in the pipeline rises thematerial
will soften and its ability towithstand pressure
reducescorrespondingly. To calculate thepressure rating at any
given temperaturethe well known "vessel" formula is usedin
conjunction with the long termregression curves of the
material.
SF for non-dangerousliquids = 1.5SF for dangerousliquids
=2.0
Design life 50 years.
Safety Factor 1.5
Note:Size 16 & 20mm is25 bar25 to 110mm is16 bar.
Temperature/Pressure chart
P = x 20 x s
SF x (d-s)
SF = x 20 x s
P x (d-s)or
where P = pressure in bar = hoop stress of material atany given
temp. in M Pas = pipe wall thickness in mmd = pipe o.d. in mmSF =
safety factor
Example
What is the maximum pressure for a110mm pipe carrying water at
70Cwith a working life of 50 years?
s = for 110mm INSTAFLEX pipe is 10mm
SF = 1.5
d = 7.5 MPa taken from long term regression curve opposite.
P = x 20 x s
SF x (d-s)
P =7.5 x 20 x10
1.5 x (110-10)
P = 10 bar
26
24
22
20
18
16
14
12
10
8
6
4
2
0
ma
xim
um a
llow
ab
le p
ress
ure r
atin
g i
n b
ar
Temperature in C
0 10 20 30 40 50 60 70 80 90 100
16 & 20mm o.d. pipe
25 & 110mm o.d. pipe
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13GEORGE FISCHER
Pipe external diameter mm 16 20 25 32 40 50 63 75 90 110
Torque Nm 3 3 4 5 10 12 15 18 20 22
Connection:plastic/plastic
Flange connections/unions
O-ring sealing unions or flangeconnections should be used in
principlefor detachable connection of plasticpipes or adaptors
between plastic pipesand metal pipes or metal fittings
(valves,pumps). Unions up to d 63 Flange connections up to d
110
High screw tightening forces are notrequired for making flange
connectionswith O-rings. It is recommended to usetorque wrenches to
prevent excessivetightening of screws.Nominal values for the screw
fixing offlange connections with O-Ring:
Connection:plastic/metal
Flange seals are normally used inflange connections for the
transitionfrom plastic to metal, since the jointingfaces of the
metal flange are usuallyserrated.
The screws should also be tightenedwith a torque wrench for
flange
Pipe external diameter mm 16 20 25 32 40 50 63 75 90 110
Nominal internal diameter DN mm 10 15 20 25 32 40 50 65 80
100
Torque Nm 6 7 9 10 20 25 30 35 40 45
Commercially available screws, nuts,washers.Washers should be
used in general
connections with flange seals, in orderto prevent damage to
flanges orflange adaptors. The table belowshows nominal values of
torquesrequired for the various pipediameters.
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14 GEORGE FISCHER
Firestop Firesleeves
Product Specification
Firestops are a one piece, onelength stainless steel sleeve
completewith closure tabs and slots, having anintumescent lining
running the full lengthof the unit with 3 bands of AccousticFoam
adhered to the bore.The units are wrapped around theplastic pipes
by hand and slid into thewalls/partitions.In the event of a close
proximity fire thePacifyre fire sleeve lining of
intumescentactivates at 140C and expands to over16 times its own
volume to create a fireproof seal between the pipe and thewall
which prevents the spread of the firebetween building
compartments.The foam, whilst creating a smoke andaccoustic seal
against the pipe, allowsfor pipe expansion and buildingmovement and
is also an anti-vibratorymaterial.Firestops can be fitted to
eitherhorizontal or verical pipework andalthough they can be freely
moved intoposition, they will remain in place evenon vertical
pipework.
Firestops do not give off toxic fumes orsmoke in the event of a
fire
Firestops are asbestos free and do notcontain any hazardous
materials andthere are no special precautionsrequired for handling
or installing theunits.
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15GEORGE FISCHER
Specification Guide for Consultants
General
The polybutylene system shall be byGeorge Fischer, Telephone 024
76535535, Fax 024 7653 0450.
Requirements specific to the design ofPB pipework systems are
contained inthis section. Polybutylene (PB) pipeworksystems shall
be used for theconveyance of heating, LTHW andpotable cold water
for use in alldomestic cold water services, chilledwater, hot water
services andcompressed air should comply with therequirements
specified in BS 7291(Parts 1 and 2) Class 'S' or DIN16968/DIN
16969.
The whole of the PB pipeworkinstallations should be tested
inaccordance with the requirements asset out in BS Code of Practice
312:and installed in accordance with BS6700 and the relevant
manufacturer'sinstructions.
Care should be exercised whilstoffloading, storing, transporting
aboutthe site and whilst installing thepipework and fittings to
ensure that noaccidental damage occurs to thepipework or fittings.
Also, the pipeworkand fittings should not be stored wherethey be
exposed to the effects of ultra-violet radiation including
daylight.
Pipes
All PB piping should be to BS 7291:Part 182 or DIN 16968/DIN
16969.
Pipe Fittings and Valves
Unless specified otherwise, allassociated pipe fittings (viz.
Manifolds,unions and flanges) should be of PBmanufacture generally
in accordancewith BS 7291: Parts 1 and 2 and brassfittings
manufactured generally inaccordance with BS 864, Part 2 andbe fully
compatible with the pipesystem they are to be installed with.
Polybutylene (PB) Pipework System
Valves for PB pipework should be fullycompatible with the
pipework system towhich they are to be connected,comprising
variously:
(i) PB gate valves for pipe sizes up toand including 63mm
outside diameter,allowing bi-directional flow with directsealing of
slide in valve bodyoperating at 90 to direction of pumpflow with
non raising valve spindle.
(ii) PVC-C ball valves for pipe sizes upto and including 63mm
outsidediameter, meeting the resistance topressure requirement of
DIN 3441,allowing bi-directional flow withfloating ball and
complete with doublesocket disconnecting ends andremovable
seals.
(iii) PVDF flanged butterfly valves forpipe sizes over 63mm
outside diameter,allowing bi-directional flow or overalldimensions
complying with DIN 3441:Part 5 or ISO 7508 and having valvebody
holes to allow connection toflanges drilled in accordance with
BS8063: Part 4, ISO 2536 or BS 10; tableD or E.
(iv) Brass valves should be suitable forconnection with PB pipe
directly orwith adaptors to flanged or threadedconnectors.
(v) Only pipe cleaner and sealantspecifically approved by the
pipe andfittings manufacturer should be used.
The above valves should be used forbalancing and regulation
purposes.Unless otherwise indicated on thedrawings, draw-off
isolating valvesshould be of approved constructionwith female
threaded enda suitable forPB threaded adaptors.
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16 GEORGE FISCHER
Selection of PB Pipe Systems
The selection is based on the followingdiameters:
The installed system shall be theGeorge Fischer PB pipework
systemand shall have the following diameterpipework.
Outer Diameter Inner Diameter
16 11.620 14.425 20.432 26.040 32.650 40.863 51.475 61.490
73.6
100 90.0
All PB pipework sizes stated on thedrawings refer to outside
diameters.
Workmanship, Finish & Appearance
The finished tube shall be smooth, freeof internal and external
mechanicalimperfections and internally shall havea smooth
appearance.
Packaging & Transportation
The pipes should be delivered in coilsor straight lenghts and
the tubes shallbe bundled by size in suitable bags orcardboard
boxes, clearly marked withthe purchase order number,
materialdesignation, size, total length or piececount and name of
supplier.
Pipe Joints
The pipes and fittings should beentirely compatible with each
otherand the jointing should be carried outin strict accordance
with themanufacturer's printed instructions.
Unless indicated otherwise, the pipejoints in PB pipework should
be madeby socket fusion, electrofusion orcompression. The assembly
of theseshould be carried out in strictaccordance with the
manufacturer'sinstructions. Only fully trainedinstallers should be
used for
assembling PB pipe systems. Trainedand certified by George
Fischer.
(i) Socket FusionUtilising the correct tools for
assembly,heating and jointing times inaccordance with the
manufacturer'sinstructions. This shall only be carriedout at a work
bench, with the heatingelement securely fixed to the workbench.
(ii) ElectrofusionUtilising correct tools for assembly,heating
and jointing times inaccordance with the
manufacturer'sinstructions.
(iii) Brass CompressionFittings to include internal pipe
sleeveas integral part of fitting with grip ringto hold pipe in
place. Assembly inaccordance with the manufacturer'sinstructions.
This method shall only beused to connect to items of plant or
tometallic pipework sections.
Where directed, to enabledisconnections to be undertaken,
socketunions should be fitted on pipes up toand including 63mm
outside diameter.Above 63mm outside diameter, flangedjoints should
be used.
Note: Locations for demountableunions and flanges shall be as
shownon the drawings.
Screwed adaptor fittings should beused at screwed joints to
appliancesup to 2" nominal bore. PB flangeadaptors having
dimensions inaccordance with BS 4504, should beprovided for
connection to pumps,tanks or equipment above 2" nominalbore.
Pipework System
The piping contractor should providesamples of the following for
approval:- PB Piping- PB pipework regulation and isolation valves-
PB Pipework bends, tees and tap connectors- PB cleaner and jointing
equipment or (if applicable) compression fittings for use with
PB.
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17GEORGE FISCHER
Orders for the pipework system shouldnot be confirmed, nor
should the theconstruction of the installation of thesystem proceed
until these sampleshave been approved in writing.
The approved samples should beretained on site for comparison
withthe work as actually installed.
The connections to taps on sinks,worktops etc should be
installed withthe manufacturer's suitable outletconnectors.
Arrangements should bemade to ensure that the fittings andthe PB
pipe to which it is joined areguarded and secured in such a wayas
to be protected from undue impactor excessive torque.
PB pipework can be connected to anyheat source (for example
domestic hotwater storage calorifier or direct gasfire water
heater).
Cleaning
In general the pipe should be flushedwith mains cold water after
finishingthe installation.
Disinfection
Disinfection shall be carried out inaccordance with Section 218
and themanufacturer's guidelines.
Fire Sleeves
Fire sleeves should be used wheresingle PB pipes of 20mm
outsidediameter and above or multiple banksof pipes penetrate fire
barriers. Theyshould generally comply with therequirements of the
local fire authority.
(i) They should be constructed with anintumescent lining.
(ii) Casings should accommodate theexpansion of intumescent
linings duringfire conditions.
(iii) Intumescent linings should expandinwards at a temperature
of about140C and completely seal theopenings against the passage
offlames, fumes and smoke. Such liningsshould also be in accordance
with thepipe manufacturer's requirements.
Note: The pressure of the expandingintumescent lining may crush
PB pipes.
(iv) Individual sleeves mounted onvertical pipework should:- be
of construction suitable for surfacemounting- be installed on the
pipe immediatelybelow the barrier (the collar should besecurely
fixed to the sleeves, the sleeveand the flanged collar butted
upagainst the fire barrier and the flangebolted into position) or
similar.
Installing the pipework system
The contractor should:
(i) Check that the exterior of the pipingis marked at intervals
not exceedingone metre with the manufacturer'sname, type of
material, pipe size andstandard with which it complies.
(ii) Check that all the piping andfittings supplied are uniform
in colourdensity.
(iii) Exercise particular care in theirstorage, handling and
installation toavoid deterioration due to ultravioletlight and
impact damage.
The piping manufacturer's printedinstructions should be rigidly
adheredto in all respects of storage, stacking,handling and
installation. The pipeworkshould be supported as indicated uponthe
drawings and as detailed withinthe contract documents.
It is essential that cleaners are correctlyapplied to the pipe
ends and socketsprior to fusion and electrofusion jointingwith
cleaning pads changed regularlyin accordance with
manufacturer'sinstructions. After fusion jointing, a ringof
Polybutylene will be visible on theoutside of the pipe as evidence
that ajoint has been completed. Afterelectrofusion an indicator pip
will raiseabove the surface of the fitting asevidence that a joint
has beencompleted.
Great care should be taken to ensurethat only the manufacturer's
installationprocedures are followed and inparticular that the full
cooling period is
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18 GEORGE FISCHER
maintained before any joint isconsidered to be complete.
No pipework, or section thereof, shallhave water pressure
applied until themanufacturer's stipulated setting periodhas
elapsed (a minimum of at leastone hour after the last fusion
joint).
Where an existing heat source has tobe maintained, with pipes
eitherrunning parallel or crossing each other,thermal insulation
should be applied.
On no account should ladders,scaffold or other building items
bepropped up against the PB installation.
Changes in direction can be achievedusing the pipe's flexibility
inaccordance with the manufacturer'sinstructions. No thermally
inducedbending of PB pipes through theapplication of local heating
should bepermitted.
All PB pipes should be supported bypipe clips or support
brackets, thespacing of which should not exceedthe maximum
intervals as advised andconfirmed by the pipe manufacturer.
Where a pipe clip or support bracketis being used to support a
number ofpipes of different materials and sizes,the spacing
interval between such clipsand brackets should not exceed
thesmallest of the 'maximum intervals'stated or advised for each of
the pipesbeing supported.
PB pipework in exposed positions (orwhere distortion is likely
to occur)should be supported using the pipingmanufacturer's
standard pipe clip orsupport pipe carriers.
Where PB piping is supported usingother than the standard PB
pipe clips,the supports should comprise steel splitpipe rings with
rubber insert, nipplingrod nuts and washers with backplateas
required, either fixed to rail supportor building fabric.
The test pressure should be maintainedthroughout the period of
time of notless than one hour and not less thanone and a half times
working pressure.
There should be no loss of pressureabove that detailed in
themanufacturer's handbook, to allow forthe expansion and the
seting in periodof PB pipes, during the period the testis being
carried out. The results of thepressure test should be recorded on
alog sheet.
Expansion
Expansion loops or changes in thepipe direction should be
allowed for atregular intervals in accordance withmanufacturer's
guidelines.
Where expansion loops and changesin direction are impractical,
fixed pointassembly may be used on pipes up to75mm diameter to
prevent the PB pipesfrom expanding or contracting, inaccordance
with manufacturer'sguidelines.
Warning: Not all PB piping systemsare suitable for fixed point
assembly toresist the effects of expansion. Pleaseconsult the
manufacturer beforeconsidering the use of this method.
If fixed point brackets are being usedto avoid longitudinal
expansion of PBpipes, the installation instructions ofbothe the
pipe and bracketmanufacturers should be adhered to.Fixed point
brackets should be locatedat fittings and must grip the pipe onboth
sides of the fittings or accordingto manufacturer's
instructions.
Fixed point supports should be locatedat fusion or electrofusion
fittings andmeet the manufacturer's requirements toabsorb forces
and transfer them to thestructure. Fixed points should not
belocated more than a maximum of 6mapart.
Pipe support carriers shall be of semicircular shape to closely
match theoutside diameter of the pipe.Manufactured from galvanised
or sizeplated steel. The coating inside andoutside are to be of the
samestandard. The finish is to be smoothalong the surfaces and
edges toprevent damage to the pipes. When
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19GEORGE FISCHER
cut the edges of the carrier are to befiled smooth. The carrier
is to beattached to the pipe by approvedcable ties suitable to
support theforces, at intervals recommended bythe manufacturer
(never more than500mm). The carrier is not to be runover fittings,
but to terminate 10 -15mmshort both sides with adequate
supportthrough cable ties and brackets.
Only installers carrying a GeorgeFischer training certificate
shall beused for assembling George FischerPolybutylene pipe
systems.
Water Treatment
On completion of installation, thewhole of the heating and
primary hotwater system is to be filled and after asatisfactory
pressure and heat test isachieved, emptied and flushed cleanof all
foreign matter.
When a clean water condition isproven, the system is to be dosed
withan approved and recognised chemicalscale and corrosion
inhibiting agent.
The dosing operation is to be carriedout by an approved
specialist and oncompletion certificates are to besubmitted
indicating the chemical used(and its characteristics) the
percentagedosage introduced and all otherrelevant details required
to maintainsatisfactory protection.
Immediately upon completion of thedosing process, notices are to
beposted in plant rooms indicating thatthe system has been treated,
thechemical used, the percentageconcentration etc and
particularlyrelevant information required by theHealth & Safety
at Work regulations.
Prior to the dosing processcommencing, the Contractor is
tosubmit details of the company it isproposing to engage to perform
theoperation, complete with all relavantinformation regarding the
type ofchemicals to be used and the method.
Dosing by the mechanical contractoror any other organisation not
aspecialist will not be permitted.
-
20 GEORGE FISCHER
Standards and Regulations
The standards and regulations specific toeach country are the
Bible of theWater Installation Specialist.
The actual standards for waterinstallations are intended for
bothmechanical services designers and alsofor manufacturers. This
is to ensure theycomply with the requirements for partsand for
materials.
Until uniform European TechnicalRegulations for Water
Installation areestablished, the specific country'sRecognized
Technical Guidelinesare valid.
Technical Regulations for WaterInstallation are in:
UK Water Byelaws &British StandardsBS & WRAS
Germany DVGWDIN 1988 (TRWI)
Switzerland SVGWGuidelines W3
Austria Standard in preparationbased on DIN 1988
With these regulations in mind, the legalrequirements for
hygienic and technicalsuitability of parts and materials have tobe
met. For the purposes of productidentification, the manufacturer
isrequired to label his products and theinstaller is required to
use only clearlymarked products.
For the construction of water systems, thefollowing standards
and regulations mustbe considered:
United Kingdom BS & WRAS BS 5955 Specification for the Pt 8
installation of thermo-
plastic pipes andassociated fittingsfor use in domestic hotand
cold waterservices and heatingsystems.
BS 7291 Thermoplastic pipesClass S and associatedfittings for
hot and coldwater for domesticpurposes and heating,chilled water
andcompressed airinstallations inbuildingsPart 1:
GeneralrequirementsPart 2: Specifications forpolybutylene (PB)
pipesand associated fittings.
UK Water Fittings Scheme Listing
Germany DVGW DIN 1988 (TRWI) DIN 4109 Noise protection in
buildings DIN 4102 Behaviour of construction
materials in fire HeizAnlV Heating installation
regulation
Switzerland SVGW W3 Guidelines for the
installation of watersystems
SIA 181 Noise protection inresidential buildings
-
21GEORGE FISCHER
INSTAFLEXProduct Range
-
!" !
"
! " ! " !
#
! ! "
$#%&$# '()#&
-
" *
! "! ! ! !! !
!
! " ! "
"" *
! " ! " !"" ! !"
!" "
!" ! !" " " !! ""
! ! !" !!
$#%&$# '()#&
-
+ , -,
!" ,. / +-- 0 1 1"
" ! " ! ! " ! " !! !
" "!
" " "" " " " " " "
$#%&$# '()#&
-
2
!" 3,
4
! ""
!! + 5,6
4
3 3 3 3 3 3
! " ! !! " ! "! !
!
L
-
4
" !
2, (752'4#83)
"3 4
" "" " "
$#%&$# '()#&
-
26 GEORGE FISCHER
760 305 000760 305 001760 305 002760 305 003760 305 004
760 305 005760 305 006
Code
9mm Insulation Tube for chilled & cold water
applications
od
1620253240
5063
Armaflex Insulation
760 305 010760 305 011760 305 012760 305 013760 305 014
760 305 015760 305 016760 305 017760 305 018760 305 019
Code
13mm Insulation Tube for heating & hot water
applications
od
1620253240
50637590
110
/m
0.690.870.951.101.26
1.802.54
/m
0.921.051.351.491.74
2.182.794.345.256.75
SP L (m)
2020202020
2020
22222
22
SP L (m)
2020202020
2020202020
22222
22222
760 856 250760 856 251760 856 252760 856 253760 856 254
760 856 255760 856 256760 856 257760 856 258760 856 259
Code
Fire Protection Sleeves
od
1620253240
50637590
110
Firestop
13.7114.3920.6222.3924.68
27.2030.6133.7537.5342.73
SP g
1212121212
1212888
5965
124141167194237272315368
60 85 62
60 30 50
New
-
' 9 '+ :
#-; !
-
" #-; +,.
4 =
" "! " " "! " "" "
"
" " " "
"
" !
5 !< +.
"33
" !" " " !" " " !" " " !" " !"
" !"! " ! " !" " " ! " " ! "
" !
" ! " ! " ! " " " " ! "
$#%&$# '()#&
-
"33 4" 4 4 =" = =
#>+, .
4 =
" ! " " " " "" " "
" !
" "! " " " " "
" !
&+ -+*.
3" 4 =
" " " " "!
" "!
" "" " ""
" "
" "
" ! " " " ! " !
" ! " ! " " "
" ! " ! " " " " " "
"
" ! "
$#%&$# '()#&
-
# ,.
4
" ! " " " " "
" "
" "
"
"
" +.
*
" ! "" " !!
$#%&$# '()#&
-
31GEORGE FISCHER
PIL 000 032PIL 000 033PIL 000 034
Code
Undrilled Reducing Bush
d
75
90
110
Socket Fusion Block Reducers
10.8013.4517.26
SP Kg
0.200
0.250
0.400
761 069 500761 069 501761 069 502761 069 503761 069 504761 069
505
Code
Pre-drilled Reducing Bush 75mm-
16
20
25
32
40
50
18.0018.0018.0018.0018.0018.00
SP Kg
0.200
0.200
0.200
0.200
0.200
0.200
761 069 506761 069 507761 069 508761 069 509761 069 510761 069
511
Code
Pre-drilled Reducing Bush 90mm-
16
20
25
32
40
50
20.0020.0020.0020.0020.0020.00
SP Kg
0.250
0.250
0.250
0.250
0.250
0.250
New
761 069 512761 069 513761 069 514761 069 515761 069 516761 069
517
Code
Pre-drilled Reducing Bush 110mm-
16
20
25
32
40
50
22.0022.0022.0022.0022.0022.00
SP Kg
0.400
0.400
0.400
0.400
0.400
0.400
-
?
?. 3
! "#$ %&' ( &) *&(
4 =" = $
" !" !! " ! " + " ! "" + " ! "
" ! +
" ! ! + " ! +
2, + 3, *,
! "#$ %&' ( &) *&(
3& 4 * = $
+ " ! + " !! ! ++ " "" + " " "
+ " +
+ " ! + " " +
2, +. 39, *,
! "#$ %&' ( &) *&(
3& 4 =" = $
+ " ! + " ++ " ! + " "
+ " ! " +
+ " " + " "" +
$#%&$# '()#&
-
! 2, +. 39, *, ! "#$ %&' ( &) *&(
3& 4 = * $
+ " ! ++ " ! ! + " !! "
$#%&$# '()#&
-
34 GEORGE FISCHER
101010
10101010
5 5 5
1 1 1
2 3 4 5
6 8 16
d Code SP g
16 20 25
32 40 50 63
75 90 110
5080 O-Ring, EPDM quality for potable wateri D b
3.53.53.5
3.55.35.35.3
5.35.37.0
D i
b
748 410 000748 410 001748 410 007
748 410 002748 410 003748 410 012748 410 013
748 410 014748 410 015748 410 016
18.6 23.4 28.2
36.1 43.8 53.3 69.2
81.9 101 120
25.7 30.5 35.2
43.2 54.5 64.0 79.9
92.5111.6134
0.750.750.88
1.041.171.291.47
1.712.883.43
484001 Flat Gaskets for all pipe materials
for all Flange Adaptors No. 5030 etc.Material: EPDMHardness: 65
Shore approx.
D Inch g i D b
16 3/8 16 027 2020 1/2 20 032 2025 3/4 25 039 2032 1 32 048 2040
11/4 40 059 3
050 11/2 50 071 3063 2 63 088 3075 21/2 75 104 3090 3 90 123
3110 4 110 148 4
Code
748 400 014748 400 015748 400 016748 400 017748 400 018
748 400 019748 400 020748 400 021748 400 022748 400 023
0.270.350.380.440.48
0.691.161.181.472.00
761 066 739761 066 740761 066 993761 066 994
1010
5
155190220305
g
*16*20*25*32
zhH DG
62627076
42424751
5555
111/411/22
41505669
SPCodedH
zh
G d Dd
Union, socketspigot, PB pipe to PB fittingincluding EPDM O-Ring,
(suitable for potable water)
5034
10.4611.4312.2015.00
5032
Gd
H
h z
zhH DG1gSPCoded-G
Adaptor union, spigot, PB fitting with metal female BSP
threadincluding EPDM O-Ring (suitable for potable water)
290290390
707074
47 47 51
11 11 11
11/211/22
52 52 64
761 066 998761 066 999761 066 288
*25-3/4*25-1*32-1
G1
D
9.7010.9014.10
-
35GEORGE FISCHER
24 70 16
l
d Code
20 25 32 40 50
63 75 90 110
SP g D
95105115140150
165185200220
a
28 34 42 51 62
78 92110133
k
65 75 85100110
125145160180
b l
1515151515
18181818
Dk
a
b
r
r11111
1111
724 701 606724 701 607724 701 608724 701 609724 701 610
724 701 611724 701 612724 701 613724 700 014
2203204108201040
1220140015301840
7 7 7 8 8
10101010
suitable for PB flange adaptors (cat. no. 5030 & 5031 pages
10 & 11)Galvanised mild steel drilled to BS 4504: 1969
NP10/16
Galvanised steel backing flange
44444
4488
bolts
M12 x 55M12 x 60M12 x 60M16 x 70M16 x 75
M16 x 80M16 x 85M16 x 90M16 x 95
boltholes
4.494.665.205.306.55
9.2512.7014.0518.20
761 066 980761 066 971761 066 972761 066 973761 066 974
761 066 975761 066 976
1010101010
102
0,1200,0900,1100,1300,180
0,2100,280
kg
16-120-11/425-11/232-240-21/2
50-2 3/463-31/2
SPCoded-G
Unionsuitable for flange adaptor and union
5081
2.422.823.424.548.00
9.2012.50
-
', : / '+0
', ,, 9,
,&) ( & (
4 * " =
" " " " " " " "
"!
" !
" " " " " " " !
" ', ,, ;* ,&) ( & ( ! "#$ %&' ( &) *&(
4 " =
" "
" " "
" "!
"
"
" " " "" " "! " ! !
, 9, 7 "
,&) ( & &&($&(&- '(' *. , ,(,
" ) 24 ;
" ! $ " ! $ " ! $
" ! ! $ " ! "" $
" ! " $ " ! " $ " !! $ " !! $
$#%&$# '()#&
-
' 9 #9+ :
#9+ +.
$ , & ) )(/
4
" ! " ! " " ! " !
" !
" ! "" " ! "
" ! "! " ! " !
" #9+ ,,. 0 ( ,/ ,
3 4 *
" ! " ! " " ! ! ! " ! " "
" ! ""
" ! " " ! " ""
#9+ -; !
-
#9+ +. ,/,
"3 * =
" ! " ! " ! ! " !
" !
" ! "
" !
" ! !
" ! " !
" ! " " ! " ! " ! " !
" ! " ! " ! " ! ""
" ! "!
" ! " ! !
" ! ! " " ! !"
#-; !< 3.
4 * =
" ! " ! " ! ! " ! !
" !
" ! ! ""! " ! "
$#%&$# '()#&
-
#9+ ,.
4
" ! " ! " " ! !" " !
" !
" ! " " " ! "!
2, 5 !< ;* , *,
3&3 4 * =
+ " ! " " ! " "!
#9+ -;
-
#-; < 3.
4 * =
" !
" ! " " ! !
" !
" ! "
" ! " " ! "!
#9+ 5 !< +.
"33 4" 4 4 =" = =
" ! ! " ! " ! " " ! " !
" ! " !
" ! " !
" ! ! "
" ! "
" ! " " ! " " " ! " " ! " " ! "
#9+ 5 !< >+,.
4 =
" ! " " ! " ! ! " " !
" ! " ""
" ! "" " ! " " ! " ! " ! !
$#%&$# '()#&
-
41GEORGE FISCHER
761 066 250761 066 251761 066 252761 066 253761 066 254
Code
5062
d-d1
25-1625-2025-1625-1625-16
Electrofusion Manifold in Polybutylene d25 (DN20)
7.859.45
13.2518.4024.30
SP Kg
d-d1 L L1 h
singlesingledoubletriple4 fold
11111
0,0310,0410,0620,0920,121
25-1625-2025-1625-1625-16
h1 H z z1 z2
31 - 63 32 60 45 36 1339 - 78 39 64 60 35 2131 45 108 32 60 90
36 1331 45 153 32 60 135 36 1331 45 198 32 60 180 36 13
Connection left Connection right
singlesingledoubletriple4 fold
-
42 GEORGE FISCHER
Special Block Reducers (Prices available on request)Order
form
d2
d1
d1
d2
d1
d
2
Rp
d
16 20 25 32 40 50
75
90
110
d2
d1
16 20 25 32 40 50
75
90
110
d2
d1
16 20 25 32 40 50
75
90
110
d2
d1
1/2
3/4
1
75
90
110
Rpd
StraightFemale electrofusion socket
90 ElbowFemale electrofusion socket
45 ElbowFemale electrofusion socket
Adaptor UnionMale/female BSP thread
-
43GEORGE FISCHER
762 501 016762 501 020
Code
Flexalino Thin Wall PB Pipe in Coilsfor compression fittings
only in Manifold Plus Range (not suitable for fusion)
od
16 x 1.520 x 1.9
Manifold Plus Compression Jointing System
/m
1.201.60
SP L (m)
60m60m
762 500 016762 500 020
Code
Flexalino Thin Wall PB Pipe in Protective Pipe in Coilsfor
compression fittings only in Manifold Plus Range (not suitable for
fusion)
od
16 x 1.520 x 1.9
/m
1.852.30
SP L (m)
60m60m
760 856 380
767 856 393
Code
ManifoldsCaps and plugs required to close future connection
od
3/4 x 15/16/202-port3/4 x 15/16/203-port
8.50
12.50
SP Kg
760 305 120
Code
Bracketing for ManifoldsSet of two
od
3/4
4.25
SP Kg
760 305 124760 305 125
Code
Plugs and Caps for Manifolds
od
3/4 Plug3/4 Cap
1.101.10
SP Kg
For final flexible connection from manifold ports to
services.
For final flexible connection from manifold ports to
services.
For connection from manifold ports to services in either 15mm,
16mm or 20mm.
-
44 GEORGE FISCHER
760 305 151760 305 153760 305 152
Code
Manifold AdaptorBody only - adaptor fitting required for PB/Cu
connection
od
15/16/20 x 3/422 x 3/425 x 3/4
1.701.952.10
SP L (m)
760 305 102
Code
Equal TeeBody only - adaptor fitting required per
inlet/outlet
od
15/16/20
1.60
SP Kg
e.g. use 15mm or 16mm adaptor fittings to reduce on a branch
760 305 104
Code
Elbow 90Body only - adaptor fitting required per
inlet/outlet
od
15/16/20
1.50
SP Kg
e.g. use 15mm or 16mm adaptor fittings to reduce
760 305 127
Code
Radiator Duckfoot BendBody only - adaptor fitting required per
inlet/outlet
od
15/16/20
2.55
SP Kg
e.g. for use with 15mm Cu or 16/20mm PB
To connect copper or INSTAFLEX to manifolds.
760 305 148
Code
Back Plate ElbowBody only - adaptor fitting required for PB/Cu
connection
od
RBM x 1/2 BSP
2.45
SP Kg
e.g. right angle connection of either 15mm Cu or 16/20mm PB to
1/2" BSP
New
New
New
-
45GEORGE FISCHER
760 305 138760 305 146
Code
INSTAFLEX Female AdaptorBody only - adaptor fittings required
for INSTAFLEX side
od
15/16/20 x 1/2 25 x 3/4
1.352.10
SP Kg
e.g. use 16mm adaptor fittings to reduce on a branch
760 305 140760 305 146
Code
INSTAFLEX Male AdaptorBody only - adaptor fittings required for
INSTAFLEX side
od
15/16/20 x 1/225 x 3/4
1.352.10
SP Kg
e.g. use 16mm adaptor fittings to reduce on a branch
760 305 132760 305 133
Code
Tap ConnectorsBody only - adaptor fittings required for
INSTAFLEX side
od
15/16/20 x 1/215/16/20 x 3/4
2.953.50
SP Kg
e.g. use to connect 16mm or 20mm PB pipe to BSP male thread tap
connection
761 856 385769 856 398
Code
Ball Valve (1/4 turn)Body only - adaptor fittings required for
INSTAFLEX side
od
15/16/2025
3.004.20
SP Kg
762 856 387760 305 150760 305 147
Code
INSTAFLEX to Copper connectorsBody only - adaptor fittings
required for PB/Cu connection
od (PB x Cu)
16/20 x 15 16/20 x 22
25 x 22
1.152.703.00
SP Kg
e.g. use to connect PB pipe to Cu tube
New
New
-
46 GEORGE FISCHER
761 856 384761 305 126
Code
Adaptor Fittingsfor FLEXALINO thin wall PB pipe
od
16 x 1.520 x 1.9
1.201.20
SP Kg
760 856 382760 856 383760 856 390
Code
for INSTAFLEX PB pipe
od
16 x 2.220 x 2.825 x 2.3
1.201.203.50
SP Kg
760 305 154
Code
for Copper, Chromed Brass, etc (universal)
od
15 x Cu
1.60
SP Kg
760 305 128
Code
Washing Machine ValveBody only - adaptor fittings required per
inlet/outlet
od
15/16/20
2.40
SP Kg
760 305 126760 305 149
Code
for copper pipe
size
15 x Cu22 x Cu
1.152.40
SP Kg
New
760 305 143
Code
Spanner for RBM fittings
size
RBM
5.70
SP Kg
e.g. to allow tightening of fittings onto manifold
New
-
2, / *,0
" 2, ;* , *,
, ( (, & .(&
3& *
+ " !
+ " ! + " ! + " ! " ! !
" ! !
+ " ! !" ,+ " ! ! , " ! ! ,
" 2, ;* 9, *,
, ( (, & .(&
3& =
+ " !
+ " ! " + " ! + " ! " !
" ! "!
+ " ! ,
+ " ! , " ! ,
" 2, ;* + +. 9, ,
, ( (,& .(& & ,& "#$
3$ =
+ " ! !
" ! " + " ! " ! !
+ " ! !
" ! ""!
+ " ! ""!
$#%&$# '()#&
-
" 2, ;* + +. 9, ,. ;* , ( (, & .(& &,/ &(
#12
3$ =
+ " ! + " !
$#%&$# '()#&
-
?
2, +
0 ( (, & .(&1 ! "#$ %&' ( &) *&(
3& ) * *" $
+ " ! ! + " ! " " + + " ! " + " ! "
+ " !
+
+ " ! + " ! " +
"
L
h
d
z
DGRp
2, +0 ( (, & .(&1 ! "#$ %&' ( &) *&(
3& ) * = $
+ " ! ! + " ! ! + + " ! ! " + " ! " "
+ " ! ""
+
+ " ! " + " ! " +
$#%&$# '()#&
-
', : /#9+0
! ', ,, 9, ;* , 99+,&) ( & ( ! "#$ %&' ( &)
*&(
&3&&) &, &, ,/ ,
* "
" ! !
" ! "
" ! "" " ! " " ! " "
" ! " " " ! "
" ', ,, 9, ;* 9 9+
,&) ( & (
4 &3&&) &, &, ,/ ,
* "
" ! " " ! " "! " ! " " !
" ! "
" !
" ! ! " ! " " ! ! " ! !
$#%&$# '()#&
-
@,
(752'4#8 /0 @,
$, @, . 9+5&,/- "#$ %&' ( &) *&(6&*.
&.(& *. (+( .&3( ,/
7 , &, (& 3&34
/70 ) 4 =
74 " 74 " ! 74 " !!
74 " ! 74 " ! !! 74 " !"
$, @, ;* $ " A 9 , / 9+0( ,/ ,5&,/- "#$ %&' ( &)
*&(6&*. &.(& *. (+( .&3( ,/, , + - ,,6
7 , &, (& 3&34
/70 ) 4 =
74 " 74 "
74 "
74 " 74 " " 74 " "
$#%&$# '()#&
-
$, @, , / 9+0( ,. ,( ,/ ,5&,/- "#$ %&' ( &)
*&(6&*. )' .(,7 , &, (& 3&34
/70
74 " 74 " ! 8( ,, , 74 " ! 3&3
"" $, @, /9+05&,/- "#$ %&' ( &) *&(6&*.
&(& *. (+( .&3( ,/
7 , &, (& 3&34
/70 ) 4 =
74 " !
" 74 " !
" " 74 " !
!
74 " !
" 74 " !
" 74 " !
$#%&$# '()#&
-
$, @, ;* $" A 9 , /9+05&,/- "#$ %&' ( &)
*&(6&*. &(& *. (+( .&3( ,/#(& 3&3 , )
(( ,(&'
7 , &, (& 3&34
/70 ) 4 =
74 " ! !
74 " ! ! 74 " ! !
74 " ! ! " 74 " ! ! 74 " ! !!
" $, @, , /9+05&,/- "#$ ( &) *&(
7 , &, (& 3&34
74 " ! ! 74 " ! ! 8( ,, , 3&3 74 " !
, , , +
$
+ "
$#%&$# '()#&
-
54 GEORGE FISCHER
761 066 946761 066 947761 066 948
761 066 949761 066 950761 066 951
Code
5079d
202532
405063
PB to PVC-C Quarter Turn Valves
23.7027.9034.00
46.8051.5065.00
SP Kg
111
111
0,1000,1600,240
0,3900,6101,120
Type 346 with PB Union AdaptorsDN L H z D
152025
324050
101119130
150163195
506070
8091
109
364367
8297
119
465667
8297
119
The Temperature/Pressurediagram (right) shows atwhat pressure
andtemperature the PVC-CType 346 valve will safelyoperate when
incontinuous use - allowinga 1 .5 safety factor.
Technical Data19
10 20 30 40 50 60 70 80 90 100
3
5
7
9
11
13
15
17
1
20 Year Life Expectancy
50 Year Life Expectancy
Pre
ssu
re (b
ar)
Temperature (C)
Valves
-
55GEORGE FISCHER
Metal Butterfly - Type 037
Type 037 M, Butterfly Valve with hand lever
Dimensions
Prices for this valve are available on application.
-
56 GEORGE FISCHER
16 2.0 15 6 15 4
20 2.0 15 7 15 4
25 2.3 18 7 15 4
32 3.0 20 10 20 4
40 3.7 22 14 20 4
50 4.6 25 18 30 4
63 5.8 28 22 30 6
75 6.8 31 26 60 6
90 8.2 36 30 75 6
110 10.0 42 35 90 6
INSTAFLEX
InstallationQuick Reference GuideFor full details refer to full
INSTAFLEX Training Manual
Socket Fusion Jointing1. Chamfer pipe ends
2. Clean pipe & fittings
3. Check heater bushes temperature
4. Check and clean heater bushes
5. Set timer to correct heating time
6. Mark fusion depth with gauge
7. Make joint but Do Not Twist after insertion only
adjust for squareness
8. Hold pipe & fitting together for required holding
time
9. Carefully put pipe and fitting down for cooling time
For 16 to 110mm Pipe & FittingsPolybutylene (PB) Socket
Fusion Jointing
Pipe outside Wall thickness Welding Heating Holding
Coolingdiameter minimum length time time timeo.d. (mm) mm L (mm) t
(sec) t1 (sec) t2 (min)
ContentsGeneral InformationWorking with plastic pipe &
fittingsINSTAFLEX technical informationFlange Connections/UnionsGF
Firestop sleevesSpecification Guide for consultantsStandards &
regulations
Product RangePipePipe supports & bracketsAccessoriesGF
Armaflex insulationGF FirestopFittings for socket fusion
jointingUnionsFlange jointing (socket fusion)
Fittings for electrofusion jointingManifold Plus Compression
Jointing systemFlange jointing (electrofusion)ValvesINSTAFLEX PB
valvesPB to PVC-C quarter turn valvesMetal butterfly valves Type
037
INSTAFLEX installation quick reference guide