1、AN AMERICAN NATIONAL STANDARDASME B16.24-2021(R evision of ASME B16.24-2016)Cast Copper Alloy PipeFl anges,Fl angedFittings,and ValvesCl asses 150,300,600,900,1500,and 2500A SMEB16.24-2021(Rev isionofA SMEB16.2 4-2016)CastCopperA lloyPipeFlanges,FlangedFittings,andV alv esxClasses150,300,600,900,150
2、0,and2500A NA MERICA NNA TIONA LSTA NDA RDTwo Park Avenue New York,NY 10016 USADateofIssuance:April8,2022ThenexteditionofthisStandardisscheduledforpublicationin2026.ASMEissueswritt enrepliestoinquiriesconcerninginterpretationsoftechnicalaspectsofthisStandard.PeriodicallycertainactionsoftheASMEB16Com
3、mitteemaybepublishedasCases.CasesandinterpretationsarepublishedontheASMEwebsiteundertheCommitteePagesathttp:/cstools.asme.orgastheyareissued.ErratatocodesandstandardsmaybepostedontheASMEwebsiteundertheCommitt eePagestoprovidecorrectionstoincorrectlypublisheditems,ortocorrecttypographicalorgrammatica
4、lerr orsincodesandstandards.Sucherratashallbeusedonthedateposted.TheCommitteePagescanbefoundathttp:/cstools.asme.org/.Thereisanoptionavailabletoautomaticallyreceiveane-mailnotificationwhenerrataarepostedtoaparticularcodeorstandard.Thisoptioncanbefoundontheappr opriateCommitt eePageafterselecting“Err
5、ata”inthe“PublicationInformation”section.ASMEistheregisteredtrademarkofT heAmericanSocietyofMechanicalEngineers.T hiscodeorstandardwasdevelopedunderproceduresaccreditedasmeetingthecriteriaforAmericanNationalStandards.T hestandardscommitteethatappr ovedthecodeorstandardwasbalancedtoensurethatindividu
6、alsfromcompetentandconcernedinterestshadanopportunitytoparticipate.T heproposedcodeorstandardwasmadeavailableforpublicreviewandcomment,whichprovidedanopportunityforadditionalpublicinputfromindustry,academia,regulatoryagencies,andthepublic-at-large.ASMEdoesnot“approve,”“rate,”or“endorse”anyitem,const
7、ruction,pr oprietarydevice,oractivity.ASMEdoesnottakeanypositionwithrespecttothevalidityofanypatentrightsassertedinconnectionwithanyitemsmentionedinthisdocument,anddoesnotundertaketoinsureanyoneutilizingastandardagainstliabilityforinfringementofanyapplicableletterspatent,norassumeanysuchliability.Us
8、er sofacodeorstandardareexpresslyadvisedthatdeterminationofthevalidityofanysuchpatentrights,andtheriskofinfringementofsuchrights,isentirelytheirownresponsibility.Participationbyfederalagencyrepresentativesorper sonsaffiliatedwithindustryisnottobeinterpretedasgovernmentorindustryendor sementofthiscod
9、eorstandard.ASMEacceptsresponsibilityforonlythoseinterpretationsofthisdocumentissuedinaccordancewiththeestablishedASMEproceduresandpolicies,whichprecludestheissuanceofinterpretationsbyindividuals.Nopartofthisdocumentmaybereproducedinanyform,inanelectronicretrievalsystemorotherwise,withoutthepriorwri
10、ttenpermissionofthepublisher.T heAmericanSocietyofMechanicalEngineersT woParkAvenue,NewYork,NY10016-5990Copyright2022byT HEAMERICANSOCIET YOFMECHANICALENGINEERSAllrightsreservedCONTENTSForeword.ivCommit t eeRost er.viCorrespondenceWitht heB16Commit t ee.viiSummaryofChanges.ixListofChangesinRecordNum
11、berOrder.x1Scope.12General.13PressureTemperatureRatings.24SizeandMethodofDesignatingOpening s.35Mark ing.36Materials.67FlangeandV alv eBodyDimensions.78FittingandValveDimensions.79BoltingandGaskets.1410Tolerances.1411PressureTesting.15MandatoryAppendicesIASTMB148V alveConst ruct ionSupplement alRequ
12、irement s.16IIR eferences.19NonmandatoryAppendicesAQ ualit ySyst emProgram.20BMet hodUsedforEst ablishingPressureTemperat ureRatings.21Figure4.2-1Met hodofDesignat ingOut let sofReducingFitt ings.5Tables3.1-1PressureTemperat ureRatingsforASTMB61AlloyC92200andASTMB62AlloyC83600.33.1-1CPressureTempera
13、t ureRatingsforASTMB61AlloyC92200andASTMB62AlloyC83600.33.1-2PressureTemperat ureRatingsforASTMB148AlloyC95200Flanges.43.1-3PressureTemperat ureRatingsforASTMB148AlloyC95400Flanges.43.1-4PressureTemperat ureRatingsforASTMB148AlloyC95800Flanges.47.1.1-1DimensionsofClass150ThreadedCompanionandBlindFla
14、ngesforAlloy sC83600andC9220087.1.1-2DimensionsofClass300ThreadedCompanionandBlindFlangesforAlloy sC83600andC9220098.1.2-1DimensionsofClass150Elbows,Tees,Crosses,Lat erals,TrueY s(St raig htSizes),andReducers108.1.2-2DimensionsofClass300Elbows,Tees,Crosses,Lat erals,TrueY s(St raig htSizes),andReduc
15、ers12iiiFOREWORDThedev elopmentoft hefirstBronzeFlangedSt andardbeganin1910t oeliminat et heconfusionprev ailingint hetradewit hrespectt obronzeflangedimensionsandserv icerat ings.Thew orkculminatedandwaspublishedin1914undert het it le“1914BrassSt andardFlang eDimensions”for150-lband250-lb(nowClass1
16、50andClass250)st eampressures.Thiswassupersededin1928byt heManufacturersSt andardizat ionSociet yofValv esandFitt ingsIndust ry(MSS)“StandardPract ice”SP-2,whichcont ainedchangest oprov ideint er-changeabilit yw it ht heAmericanCast-IronFlangeSt andardsfor125-lb(nowClass125)andClass250st reampressures.Subsequentrev isionswereissuedin1930and1936.Int helat t er,anewcolumnoft hick nessfor300-lb(nowClass300)flangeswasadded.Int he1937edit ion,illust rat ionsanddimensionsofbronze-flangedfit t ingswere
