ANAMERICANNATIONALSTANDARDASMEB16.5-2009(RevisionofASMEB16.5-2003)PipeFlangesandFlangedFittingsNPS1/2ThroughNPS24Metric/InchStandardCopyright2009bytheAmericanSocietyofMechanicalEngineers.NoreproductionmaybemadeofthismaterialwithoutwrittenconsentofASME.cCopyrightedmateriallicensedtoStanfordUniversitybyThomsonScientific(www.techstreet.com),downloadedonOct-05-2010byStanfordUniversityUser.Nofurtherreproductionordistributionispermitted.UncontrolledwhenprintedASMEB16.5-2009(RevisionofASMEB16.5-2003)PipeFlangesandFlangedFittingsNPS1⁄2ThroughNPS24Metric/InchStandardANAMERICANNATIONALSTANDARDCopyright2009bytheAmericanSocietyofMechanicalEngineers.NoreproductionmaybemadeofthismaterialwithoutwrittenconsentofASME.cCopyrightedmateriallicensedtoStanfordUniversitybyThomsonScientific(www.techstreet.com),downloadedonOct-05-2010byStanfordUniversityUser.Nofurtherreproductionordistributionispermitted.UncontrolledwDateofIssuance:June30,2009ThenexteditionofthisStandardisscheduledforpublicationin2012.Therewillbenoaddendaissuedtothisedition.ASMEissueswrittenrepliestoinquiriesconcerninginterpretationsoftechnicalaspectsofthisStandard.InterpretationsarepublishedontheASMEWebsiteundertheCommitteePagesathttp://cstools.asme.orgastheyareissued.ItemsapprovedaserratatothiseditionarepublishedontheASMEWebsiteunderCommitteePagesathttp://cstools.asme.org.ASMEistheregisteredtrademarkofTheAmericanSocietyofMechanicalEngineers.ThiscodeorstandardwasdevelopedunderproceduresaccreditedasmeetingthecriteriaforAmericanNationalStandards.TheStandardsCommitteethatapprovedthecodeorstandardwasbalancedtoassurethatindividualsfromcompetentandconcernedinterestshavehadanopportunitytoparticipate.Theproposedcodeorstandardwasmadeavailableforpublicreviewandcommentthatprovidesanopportunityforadditionalpublicinputfromindustry,academia,regulatoryagencies,andthepublic-at-large.ASMEdoesnot“approve,”“rate,”or“endorse”anyitem,construction,proprietarydevice,oractivity.ASMEdoesnottakeanypositionwithrespecttothevalidityofanypate...