PipelineTransportationSystemsforLiquidHydrocarbonsandOtherLiquidsASMECodeforPressurePiping,B31ANAMERICANNATIONALSTANDARDASMEB31.4-2009(RevisionofASMEB31.4-2006)Copyright2010bytheAmericanSocietyofMechanicalEngineers.NoreproductionmaybemadeofthismaterialwithoutwrittenconsentofASME.cCopyrightedmateriallicensedtoStanfordUniversitybyThomsonScientific(www.techstreet.com),downloadedonOct-05-2010byStanfordUniversityUser.Nofurtherreproductionordistributionispermitted.UncontrolledwINTENTIONALLYLEFTBLANKCopyright2010bytheAmericanSocietyofMechanicalEngineers.NoreproductionmaybemadeofthismaterialwithoutwrittenconsentofASME.cCopyrightedmateriallicensedtoStanfordUniversitybyThomsonScientific(www.techstreet.com),downloadedonOct-05-2010byStanfordUniversityUser.Nofurtherreproductionordistributionispermitted.UncontrolledwASMEB31.4-2009(RevisionofASMEB31.4-2006)PipelineTransportationSystemsforLiquidHydrocarbonsandOtherLiquidsASMECodeforPressurePiping,B31ANAMERICANNATIONALSTANDARDCopyright2010bytheAmericanSocietyofMechanicalEngineers.NoreproductionmaybemadeofthismaterialwithoutwrittenconsentofASME.cCopyrightedmateriallicensedtoStanfordUniversitybyThomsonScientific(www.techstreet.com),downloadedonOct-05-2010byStanfordUniversityUser.Nofurtherreproductionordistributionispermitted.UncontrolledwDateofIssuance:March24,2010ThenextEditionofthisCodeisscheduledforpublicationin2013.Therewillbenoaddendaissuedtothisedition.ASMEissueswrittenrepliestoinquiriesconcerninginterpretationsoftechnicalaspectsoftheCode.PeriodicallycertainactionsoftheASMEB31CommitteemaybepublishedasCodeCases.CodeCasesandinterpretationsarepublishedontheASMEWebsiteundertheCommitteePagesathttp://cstools.asme.orgastheyareissued.ASMEistheregisteredtrademarkofTheAmericanSocietyofMechanicalEngineers.ThiscodeorstandardwasdevelopedunderproceduresaccreditedasmeetingthecriteriaforAmericanNationalStandards.TheStandardsCommitteethatapprovedthecodeorstandardwasbalancedtoassurethatindividualsfromcompetentandconcernedinterestshavehadanoppo...