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ASMEB16.10-2009(RevisionofASMEB16.10-2000)Face-to-FaceandEnd-to-EndDimensionsofValvesANAMERICANNATIONALSTANDARDCopyrightASMEInternationalProvidedbyIHSunderlicensewithASME Soldto:INFORMATIONHANDLINGSERVICES,01779770NoreproductionornetworkingpermittedwithoutlicensefromIHS NotforResahs,2009/11/1219:39:39GMTDateofIssuance:October28,2009ThenexteditionofthisStandardisscheduledforpublicationin2014.Therewillbenoaddendaissuedtothisedition.ASMEissueswrittenrepliestoinquiriesconcerninginterpretationsoftechnicalaspectsofthisStandard.InterpretationsanderrataarepublishedontheASMEWebsiteundertheCommitteePagesat(s)orperson(s)affiliatedwithindustryisnottobeinterpretedasgovernmentorindustryendorsementofthiscodeorstandard.ASMEacceptsresponsibilityforonlythoseinterpretationsofthisdocumentissuedinaccordancewiththeestablishedASMEproceduresandpolicies,whichprecludestheissuanceofinterpretationsbyindividuals.Nopartofthisdocumentmaybereproducedinanyform,inanelectronicretrievalsystemorotherwise,withoutthepriorwrittenpermissionofthepublisher.TheAmericanSocietyofMechanicalEngineersThreeParkAvenue,NewYork,NY10016-5990Copyright©2009byTHEAMERICANSOCIETYOFMECHANICALENGINEERSAllRightsReservedPrintedinU.S.A.CopyrightASMEInternationalProvidedbyIHSunderlicensewithASME Soldto:INFORMATIONHANDLINGSERVICES,01779770NoreproductionornetworkingpermittedwithoutlicensefromIHS NotforResale,2009111/1219:39:39GMTCONTENTSForeword ivCommitteeRoster CorrespondenceWiththeB16Committee vi1 Scope 12 Definitions 23 FacingsofFlangedValves 34 VariationsofLengthWithinaClassofValves 35 Tolerances 4Figures1 FlangeFacingsandTheirRelationships 52WeldingEnds 6Tables1 Class125CastIronFlangedandClass150SteelFlangedandButtweldingEndValves,Face-to-FaceandEnd-to-EndDimensions 72 Class250CastIronFlangedandClass300SteelFlangedandButtweldingEndValves,Face-to-FaceandEnd-to-EndDimensions 103 Class600SteelFlangedandButtweldingEndValves,Face-to-FaceandEnd-to-EndDimensions 134 Class900SteelFlangedandButtweldingEndValves,Face-to-FaceandEnd-to-EndDimensions 155 Class1500SteelFlangedandButtweldingEndValves,Face-to-FaceandEnd-to-EndDimensions 166 Class2500SteelFlangedandButtweldingEndValves,Face-to-FaceandEnd-to-EndDimensions 187 Classes125and250CastIronandClasses150to2500SteelWaferTypeValves,Face-to-FaceDimensions 198 Classes25and125CastIronandClasses150to600SteelButterflyValves,Face-to-FaceDimensions 209 DeterminationofFace-to-FaceandEnd-to-EndDimensionsofFlangedValvesHavingVariousFlangeFacings 2110 Classes150to2500SteelValvesHavingEndFlangesWithRingJointFacings,End-to-EndDimensions 22MandatoryAppendixI Face-to-FaceandEnd-to-EndDimensions:U.S.CustomaryUnits 25NonmandatoryAppendixA References 42iiiCopyrightASMEInternationalProvidedbyIHSunderlicensewithASME Soldto:INFORMATIONHANDLINGSERVICES,01779770NoreproductionornetworkingpermittedwithoutlicensefromIHS NotforResale,2009/1111219:39:39GMTFOREWORDIn1921,theAmericanEngineeringStandardsCommittee,latertheAmericanStandardsAssociation(ASA),organizedSectionalCommitteeB16tounifyandfurtherdevelopnationalstandardsforpipeflangesandfittings(and,later,forvalves,gaskets,andvalveactuators).CosponsorsoftheB16CommitteewereTheAmericanSocietyofMechanicalEngineers(ASME),theHeatingandPipingContractorsNationalAssociation[nowtheMechanicalContractorsAssociationofAmerica(MCAA)],andtheManufacturersStandardizationSocietyoftheValveandFittingsIndustry(MSS).Cosponsorswerelaterdesignatedascosecretariatorganizations.Pioneerworkonstandardizationofend-to-enddimensionsofvalvesbeganin1917underthedirectionofJ.A.Stevens.ItwasputasideattheendofWorldWarIandinterestdidnotreviveuntil1926.ASAandASMEagreedtoincludethetopicinthescopeoftheB16Committee,andSubcommittee5(nowSubcommitteeE)wasestablishedforthepurpose.Workbeganin1928andcoveredferrousflanged-endgate,globe,angle,andcheckvalves.Developmentofanationalstandardwashinderedbythediversityofexistingpracticesandbyadverseeconomicconditionsintheearly1930s.Aproposed