LargeMetallicValvesforGasDistributionManuallyOperated,NPS21/2(DN65)toNPS12(DN300),125psig(8.6bar)MaximumANAMERICANNATIONALSTANDARDASMEB16.38-2007[RevisionofANSI/ASMEB16.38-1985(R2005)]Copyright2008bytheAmericanSocietyofMechanicalEngineers.NoreproductionmaybemadeofthismaterialwithoutwrittenconsentofASME.cCopyrightedmateriallicensedtoStanfordUniversitybyThomsonScientific(www.techstreet.com),downloadedonOct-05-2010byStanfordUniversityUser.Nofurtherreproductionordistributionispermitted.UncontrolledwhenprintedASMEB16.38-2007[RevisionofANSI/ASMEB16.38-1985(R2005)]LargeMetallicValvesforGasDistributionManuallyOperated,NPS21⁄2(DN65)toNPS12(DN300),125psig(8.6bar)MaximumANAMERICANNATIONALSTANDARDThreeParkAvenue•NewYork,NY10016Copyright2008bytheAmericanSocietyofMechanicalEngineers.NoreproductionmaybemadeofthismaterialwithoutwrittenconsentofASME.cCopyrightedmateriallicensedtoStanfordUniversitybyThomsonScientific(www.techstreet.com),downloadedonOct-05-2010byStanfordUniversityUser.Nofurtherreproductionordistributionispermitted.UncontrolledwDateofIssuance:February4,2008ThenexteditionofthisStandardisscheduledforpublicationin2012.Therewillbenoaddendaissuedtothisedition.ASMEissueswrittenrepliestoinquiriesconcerninginterpretationsoftechnicalaspectsofthisStandard.InterpretationsarepublishedontheASMEWebsiteundertheCommitteePagesathttp://cstools.asme.orgastheyareissued.ASMEistheregisteredtrademarkofTheAmericanSocietyofMechanicalEngineers.ThiscodeorstandardwasdevelopedunderproceduresaccreditedasmeetingthecriteriaforAmericanNationalStandards.TheStandardsCommitteethatapprovedthecodeorstandardwasbalancedtoassurethatindividualsfromcompetentandconcernedinterestshavehadanopportunitytoparticipate.Theproposedcodeorstandardwasmadeavailableforpublicreviewandcommentthatprovidesanopportunityforadditionalpublicinputfromindustry,academia,regulatoryagencies,andthepublic-at-large.ASMEdoesnot“approve,”“rate,”or“endorse”anyitem,construction,proprietarydevice,oractivity.ASMEdoesnottakeanypositionw...