1、5SOInternationa1.StandardISO44371Secondedition2024-02P1.asticspipingsystemsforthesupp1.yofgaseousfue1.s一Po1.yethy1.ene(PE)一触阴叫Systemesdecana1.isationsenp1.astiquepourIadistributiondecombustib1.esgazeuxPo1.yethy1.ene(PE)一Panic1:Genira1.itisReferencenumberISO4437-1:2024(en)COPYRIGHTPROTECTEDDOCUMENTIS
2、O2024WintGhcdBdHUWwdotherwiseCrW4WMrtiwcmbxtt11)ni(WkJhrtRinkHimftWr1.9Htumcnpyip?IHdiCnticnma),theinternetoranintranet,withoutpriorwrittenpermission.Permissiononber?qucste(a(*M(*(*t*t4(4*(*MWta4.2 AbbreviatedtermsMateria1.Materia1.ofthecomponentsCompound1.1.2 AdttiiIReSandpigncnts81.1.3 Characteris
3、ticsB5.3 Fusioncompatibi1.ity12时庠触ftWfi丽驯designation.巴巴法一.135.6 Changeofcompoundformu1.ation13Annex A (informative)Additiona1.informationre1.atedtotheinsta1.1.ationofPE100-RCsystems14Annex B (informative)1.PGandmanufacturedgas16Annex C (informative)Resistancetorapidcrackpropagation(RCP)17131bI】Ogra1
4、)hy1ForewordISO(theInternationa1.OrganizationforStandardization)isaWOHdwidefederationofnationa1.standardsIMdIiest触UimatbnnbtidM明岷IWnribefPrbPdNMEtetfndtiOna1.Staudd三硼鼾抽a船ythe郸曾瞅限0。例蛔由摘砧鼐耨神Reets，practicesorcodes.2 NormativereferencesThefo1.1.owingdocumentsarereferredtointhetextinsuchawaythatsomeora1
5、1.oftheircontentconstitutesrteqiiremoJiotbfsthe(tafurenntFdociaii11refipMgandductingsystemsP1.asticspipesandfittingsMethodforexposuretodirect酎单削鸵代即叔由扁fb/ff驿卿ipingsystemsDeterminQtiOnOfStrainHardeningModu1.usin出Wq皑岫卬88曲附画【P钙网胞怖胡f揶砌图if4sDeterminationOfresistancetos1.owcrackgrowthi,09ff9/fHVWiWJitsthe
6、assessmentofthedegreeofpigmentorcarbonb1.ackdispersioninpo1.yo1.efinpipes.content3 Termsanddefinitionsapp1.y.ISOOn1.inebrowsingp1.atform:avai1.ab1.eat4UfHrvw4fKMH=g4p3.1 Termsre1.atedtogeometry3.1.1nomina1.sizeDN/OD(mm),1.toisentry:app1.icab1.ecomponentsdesignateu1.a：andthemechanica1.characteristics
7、oftheMOPPossib1.etoserviceResearch1.east1.ong-termperformancePredictionandpo1.yethy1.enegasdistributionsystemsshowsa3.4.3referencetemperaturesystemforoperatingtemperaturesdifferentfurtherca1.cu1.ationtemperature(seepiping4437-5).orpartsofapiping3.4.4manufacturedgassyntheticgastypica1.tonatura1.Manuf
8、actured(synthetic)foundCanatypica1.proportionsasamountscasechemica1.speciesgases,arenota) compositionProPerties;SynthetiCorsubstitutenatura1.gases,andthatc1.ose1.ymatchtruenatura1.gasesinbothsa1.1.owab1.estressforagivenapp1.icationat20thauderivedfromtheminimumrequiredstrength.MRS(3.3.2)rbydividingit
9、bythedesigncoefficient,C(3.3.3)MRSNote21entry：Itisexpressedinmegapasca1.s(MPa).va1.uere1.atingtotheviscosityofthemo1.tenmateria1.ataspecifiedtemperatureand1.oad3.4toentrr:Itistoingramsper10fue1.whichISingaseousstateatatemperatureof15atatmosphericpressure(H2),1toistheThereofongoingtoinjectmaximumeffe
10、ctivepressureoftheuidinthepipingsystemwhichisa1.1.owedincontinuoususeNote1ofaItissystem,isbar.IttakesIntotheaccountthephysica1.切S20Note2entryJifeofaton100years；seeReferences14,15of16).temperatureforwhichthepipingsystemisdesignedNote1toentry:ItisusedthebaseforfromthereferencewhendesigningaISOsystemga
11、swhichhasbeentreatedandcancontaincomponentsthatarenottypica1.ofnatura1.gasNote1ofcntrr:gasesorcommonspeciesgasesinCOntainsubstantia1.intheofofwetandsourthatNote2toentry:Manufacturedgasesfa1.1.intotwodistinctcategories,asfo1.1.ows:thosethatareandintendedasb) thosethat,whetherornotintendedtorep1.aceor
12、enhancenatura1.gasinservice,donotc1.ose1.ymatchnatura1.gasesincomposition.Caseb)Inc1.udesgasessuchastowngas,cokeovengas(undi1.uted),and1.PG/airmixtures.Noneofwhich1$compositiona1.1.ysimi1.artoatruenatura1.gas(eventhough,inthe1.attercase,itcanbeoperationa1.1.yinterchangeab1.ewithnatura1.gas).SOURCE:I
13、SO14532:2014,2.1.1.4)3.5Termsre1.atedtojoints3.5.1buttfusionjointjointmadebyheatingthep1.anedendsofpipesorspigotendfittings(3.5.6)rthesurfacesofwhicharefusedtogetherbyho1.dingthemagainstaf1.atheatingp1.ateunti1.thepo1.yethy1.enemateria1.reachesfusionggerature,removingtheheatingp1.atequick1.yandpushi
14、ngthetwosoftenedendsagainstoneanotherfusioncompatibi1.itygyOftw。SimHarordissimi1.arpo1.yethy1.enecompounds(3.2.1)tobefusedtogethertoformajointe1.ectrofusionjointjointbetweenapo1.yethy1.114u4ecroi5onsocketfitting(3.S.4)ore1.ectrofusionsadd1.efitting(3.S.5)andapipeorspigotendfitting(3.5.6),madebyheati
15、ngthee1.ectrofusionfittingbytheJou1.eeffectoftheheatingQiuifctnbiBGOirmMed皿SeIheirjointingsurfaces,causingthemateria)adjacenttothemtome1.tandthepipe-503.5.4e1.ectrofusionsocketfittingpo1.yethy1.ene(PE)fittingwhichcontainsoneormoreintegratedheatinge1.ementsthatarecapab1.eoftransforminge1.ectrica1.ene
16、rgyintoheattorea1.izeafusionjointwithaspigotendorapipe3.5.5e1.ectrofusionsadd1.efittingpo1.yethy1.ene(PE)fittingwhichcontainsoneormoreintegratedheatinge1.ementsthatarecapab1.eoftransforminge1.ectrica1.energyintoheattorea1.izeafusionjointontoapipe3.5.6spigotendfittingpo1.yethy1.4PEjfittingwheretheout
17、sidediameterofthespigotendisequa1.tothenomina1.outsidediameter(3.1.2)ofthecorrespondingpipe4Symbo1.sandabbreviatedterms4.1 Symbo1.sForthepurposesofthisdocument,thefo1.1.owingsymbo1.sapp1.y.Cdesigncoefficientnomina1.outsidediameter%,wa1.1.thickness(atanypoint)ofafittingandva1.vebodyewa1.1.thickness(atanypoint)aroundtheCirCumferenCeofacomponentminimumwa1.1.thickness(atanypoint)6minCnnomina1.wa1.1.thicknessstrainhardeningmodu1.usKcritica1.pc.h1.1.s01.ccritica1.pressureobtainedinfu1.1.-sca1.etestcritica1.pressureobtainedinS4-testtpipeseriesOtimetemperaturekOidfsigO1.P1.1.owerc
