01
SPECIFICATIONSFORCSPTFE LINEDPIPE,
FITTINGSANDVALVES
This specification covers factorymade PTFE linedmetal pipe, fittings & valves primarily intended for conveying
corrosive fluids. All the technical specificationsof our PTFE /PFA / FEP linedpiping systems generallyexceeds the
relevantASTMF1545-95Standard specifications. This specificationcoversANSI 150# PTFE linedpipe& fittings in
nominaldiameterfrom25NBto400NB.
MaterialofConstruction:
CSPTFE/PFA/FEP lined
Pipe&Fittingsmaterial :
ASTMA106Gr.B, incompliancewithANSIB36.10.Accordingtoschedule40 from25NBto
150NB,schedule30from200NBto250NB&schedule20for300NB.
FlangeMaterial :
IS2062plateflangesANSIB16.5,ASA150#fordrilledholes,ASTMA105COLLARTYPE150#
Valve BodyMaterial :
WCB casting as per ASTMA 216WCB SS304 casting as per ASTMA 351Grade Cf8 SS316
castingasperASTMA351GradeCF8M
PTFE liner forpipes :
IsostaticallyMoulded /PasteExtrudedorRamExtruded linerwithevenpressure throughout
the length,moldedfromstandardresinasperASTMD1457,Whitecolor
LinedFittings :
Fittingsare linedwithRAMextrudedPipesmadefromfromstandardresinasperASTMD1457.
LinedValves :
Valvesare linedwithPTFE/PFA/FEP.
LiningMaterial-ResinType
StandardResinSpecification
PTFEPolytetrafluoroethylene
ASTMD1457
White
PFAPerfluoro[Alkoxyalkane]copolymer
ASTMD3307
Natural
FEPPerfluoro[Ethylene-Propylene]copolymer
ASTMD2116
Natural
StandardLinerColor
LiningThickness:
3to8mmfrom25NBupto400NBdependson size& location
Standard forPipe :
Collared ends with backing flange as perANSI B16.5ASA150#, oneend loose flangeand
otherendfixedflange.
Standardforfittings :
All fittingsarewithfixedweldedflanges, looseflangescanbeofferedonextracost.
Ventsholes :
Eachpipehavingtwoventholesthatwillreleaseanypressurebetweenthe linerandthehousing.
Toleranceforpipe length :
±3.2mm.
Toleranceforflangebolthole :
±1.6mm
Inspectionand testing :
Pipesand fittingsare testedwithanon-destructivehighvoltage testeratanoutputvoltage
of10KVandhydrostaticpressuretestat10Kg/cm2,ballvalvesaretestedatairpressureof2Kg/cm2.
PressureRating:
Vacuumeto06kg/cm2
Temperature.Rating :
-29°Cto260°C
ExternalFinish :
Pipesand fittingsarepaintexternallybyredoxide primerandvalvesarepaintexternallywith two
coatsofpaint
