【英文标准名称】:StandardSpecificationforCured-in-PlacePipeLiningSystemforRehabilitationofMetallicGasPipe
【原文标准名称】:金属输气管道复原用硫化固定内部管道系统的标准规范
【标准号】:ASTMF2207-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:F17.60
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:燃气管;金属的;管衬;管道系统;固定;复原
【英文主题词】:composite;cured-in-place;flexibletubing;gaspiperenewal;inversion;rehabilitation
【摘要】:1.1Thisspecificationcoversrequirementsandmethodoftestingformaterials,dimensions,hydrostaticburststrength,chemicalresistance,adhesionstrengthandtensilestrengthpropertiesforcured-in-place(CIP)pipelinersinstalledintoexistingmetallicgaspipes,3/4to48in.nominalpipesize,forrenewalpurposes.Themaximumallowableoperatingpressure(MAOP)ofsuchrenewedgaspipeshallnotexceedapressureof300psig(2060kPa).Thecured-in-placepipelinerscoveredbythisspecificationareintendedforuseinpipelinestransportingnaturalgas,petroleumfuels(propane-airandpropane-butanevapormixtures),andmanufacturedandmixedgases,whereresistancetogaspermeation,groundmovement,internalcorrosion,leakingjoints,pinholes,andchemicalattackarerequired.1.2Themediumpressure(upto100psig)cured-in-placepipeliners(SectionA)coveredbythisspecificationareintendedforuseinexistingstructurallysoundorpartiallydeterioratedmetallicgaspipeasdefinedin.Thehighpressure(over100psigupto300psig)cured-in-placepipeliners(SectionB)coveredbythisspecificationareintendedforuseonlyinexistingstructurallysoundsteelgaspipeasdefinedin.CIPlinersareinstalledwithlimitedexcavationusinganinversionmethod(airorwater)andareconsideredtobeatrenchlesspipelinerehabilitationtechnology.Theinvertedlinerisbondedtotheinsidewallofthehostpipeusingacompatibleadhesive(usuallyanadhesiveorpolyurethane)inordertopreventgasmigrationbetweenthehostpipewallandtheCIPlinerand,also,tokeepthelinerfromcollapsingunderitsownweight.1.2.1Continuedgrowthofexternalcorrosion,ifundetectedandunmitigated,couldresultinlossofthehostpipestructuralintegritytosuchanextentthatthelinerbecomesthesolepressurebearingelementintherehabilitatedpipelinestructure.TheCIPlinerisnotintendedtobeastand-alonepipeandreliesonthestructuralstrengthofthehostpipe.Theoperatormustmaintainthestructuralintegrityofthehostpipesothatthelinerdoesnotbecomefreestanding.1.3MPLCIPliners(SectionA)canbeinstalledinpartiallydeterioratedpipeasdefinedin.Evenforlowpressuregasdistributionsystems,whichtypicallyoperateatlessthan1psig,MPLCIPlinersarenotintendedforuseasastand-alonegascarrierpipebutrelyonthestructuralintegrityofthehostpipe.Therefore,thesafeuseofcured-in-placepipeliningtechnologyfortherehabilitationofexistingcastiron,steel,orothermetallicgaspipingsystems,operatingatpressuresupto100psig,iscontingentonatechnicalassessmentoftheprojectedoperatingconditionofthepipefortheexpected30to50yearlifeoftheCIPliner.Cured-in-placepipelinersareintendedtorepair/rehabilitatestructurallysoundpipelineshavingrelativelysmall,localizeddefectssuchaslocalizedcorrosion,weldsthatareweakerthanrequiredforservice,orloosejoints(castironpipe),whereleaksmightoccur.1.3.1HPLCIPliners(SectionB)areintendedforuseonlyinexistingstructurallysoundsteelgaspipeasdefinedin.HPLCIPlinersarenotintendedforuseasastand-alonegascarrierpipebutrelyonthestructuralintegrityofthehostpipe.Therefore,thesafeuseofcured-in-placepipeliningtechnologyfortherehabilitationofexistingsteelgaspipingsystems,operatingatpressuresupto300psig,iscontingentonatechnicalassessmentoftheprojectedoperatingconditionofthepipefortheexpected30to50yearlifeoftheCIPliner.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.
【中国标准分类号】:H62;P94
【国际标准分类号】:23_040_15
【页数】:20P.;A4
【正文语种】: