1、AN AMERICAN NATIONAL STANDARDASME B16.22-2021(R evision of ASME B16.22-2018)Wrought Copper and Copper Alloy Sol der-Joint Pressure FittingsA SMEB16.22-2021(Rev isionofA SMEB16.22-2018)Wr oughtCopperandCopperA lloySolder-JointPr essur eFittingsA NA MERICA NNA TIONA LSTA NDA RDTwo Park Avenue New York
2、,NY 10016 USADateofIssuance:February28,2022ThenexteditionofthisStandardisscheduledforpublicationin2026.ASMEissueswritt enrepliestoinquiriesconcerninginterpretationsoftechnicalaspectsofthisStandard.PeriodicallycertainactionsoftheASMEB16CommitteemaybepublishedasCases.Casesandinterpretationsarepublishe
3、dontheASMEwebsiteundertheCommitteePagesathttp:/cstools.asme.org/astheyareissued.ErratatocodesandstandardsmaybepostedontheASMEwebsiteundertheCommitt eePagestoprovidecorrectionstoincorrectlypublisheditems,ortocorrecttypographicalorgrammaticalerr orsincodesandstandards.Sucherratashallbeusedonthedatepos
4、ted.TheCommitteePagescanbefoundathttp:/cstools.asme.org/.Thereisanoptionavailabletoautomaticallyreceiveane-mailnotificationwhenerrataarepostedtoaparticularcodeorstandard.Thisoptioncanbefoundontheappr opriateCommitt eePageafterselecting“Errata”inthe“PublicationInformation”section.ASMEistheregisteredt
5、rademarkofT heAmericanSocietyofMechanicalEngineers.T hiscodeorstandardwasdevelopedunderproceduresaccreditedasmeetingthecriteriaforAmericanNationalStandards.T heStandardsCommitteethatapprovedthecodeorstandardwasbalancedtoassurethatindividualsfromcompetentandconcernedinterestshavehadanopportunitytopar
6、ticipate.T heproposedcodeorstandardwasmadeavailableforpublicreviewandcommentthatprovidedanopportunityforadditionalpublicinputfromindustry,academia,regulatoryagencies,andthepublic-at-large.ASMEdoesnot“approve,”“rate,”or“endorse”anyitem,construction,proprietarydevice,oractivity.ASMEdoesnottakeanyposit
7、ionwithrespecttothevalidityofanypatentrightsassertedinconnectionwithanyitemsmentionedinthisdocument,anddoesnotundertaketoinsureanyoneutilizingastandardagainstliabilityforinfringementofanyapplicableletterspatent,norassumeanysuchliability.Usersofacodeorstandardareexpresslyadvisedthatdeterminationofthe
8、validityofanysuchpatentrights,andtheriskofinfringementofsuchrights,isentirelytheirownresponsibility.Participationbyfederalagencyrepresentative(s)orperson(s)affiliatedwithindustryisnottobeinterpretedasgovernmentorindustryendor sementofthiscodeorstandard.ASMEacceptsresponsibilityforonlythoseinterpreta
9、tionsofthisdocumentissuedinaccordancewiththeestablishedASMEproceduresandpolicies,whichprecludestheissuanceofinterpretationsbyindividuals.Nopartofthisdocumentmaybereproducedinanyform,inanelectronicretrievalsystemorotherwise,withoutthepriorwrittenpermissionofthepublisher.T heAmericanSocietyofMechanica
10、lEngineersT woParkAvenue,NewYork,NY10016-5990Copyright2022byT HEAMERICANSOCIET YOFMECHANICALENGINEERSAllrightsreservedCONTENTSForeword.ivCommit t eeRost er.vCorrespondenceWitht heB16Commit t ee.viSummaryofChanges.viiiListofChangesinRecordNumberOrder.ix1Scope.12General.13PressureTemperatureRatings.14
11、Terminolog y.15Mark ing.26Material.27LayingLengths.28TubeStops.29InspectionTolerance.210ThreadedEnds.311Alig nment.312Gaging.3MandatoryAppendicesISt rengt hofSolderJoint s.10IIReferences.12NonmandatoryAppendicesAFit t ingRat ing.13BQ ualit ySyst emProgram.14Figures4.1-1Met hodofDesignat ingLay ingLe
12、ngt hsofFit t ingsandOpening sofReducingFit tings.78-1TubeStops.911-1Alignment.9Tables3.1.1-1DimensionsofSolder-JointEnds.43.1.1-2Int ernalPressureTemperat ureRat ingsforCopperFit t ings,k Pa(psi).69.2-1Inspect ionTolerance.9I-1PressureTemperat ureRatings.11iiiFOREWORDSt andardizat ionofcastandwroug
13、htsolder-jointfit t ingswasinit iatedinSubcommit t ee11ofAmericanSt andardsAssociat ion(ASA)Sect ionalCommitt eeA40onPlumbingRequirement sandEquipment.Dev elopmentworkculminat edint hepublicat ionofASAA40.3-1941.Thestandardbenefit edfromworkdonebyA.R.Maupinoft heNat ionalBureauofSt andards,bot hbefo
14、reandduringit sdev elopment,onthest rengt hofsolderjoint s.In1949,w orkont hesefitt ingsw astransferredt oSect ionalCommitt eeB16,whichest ablishedSubcommitt ee9(nowSubcommitt eeJ)w ithascopebroadert hanplumbingapplicat ions.Thefirstst andarddevelopedwasapprovedasASAB16.18-1950,Cast-BrassSolderJoint
15、Fit t ings.Itwast hendecidedt oreviseASAA40.3asaB16st andardcoveringonlywroughtsolder-jointfit t ing s.Thiseffortwasfacilit at edbya1950draftpreparedbyjointeffortoft heCopperandBrassResearchAssociationandt heManufact urersSt andardizat ionSociet yoftheValv eandFit t ingsIndustry(MSS).Thedraft,afterr
16、ev iewandapprovalbySubcommit t ee9andt heSect ionalCommit t ee,wasapprovedasASAB16.22-1951.R evisionsw erepublishedasASAB16.22-1963and,aft erreorg anizat ionofASAast heAmericanNat ionalSt andardsInst it ut e(ANSI),asANSIB16.22-1973.Int heseedit ions,updat edpract ices,newmat erials,andnewt y pesoffit t ingswereincorporat edint ot hest andard,asw ellaseditorialimprovement sandupdat ingofreferencedspecificat ionsandst an-dards.In1979,Subcommit teeI(formerlySubcommitt ee9,nowSubcommit teeJ)addedmet
