ASME-B16.5-2009--NPS-12至NPS-24-管法兰及法兰式管接件

ANAMERICANNATIONALSTANDARDASMEB16.5-2009(RevisionofASMEB16.5-2003)PipeFlangesandFlangedFittingsNPS1/2ThroughNPS24Metric/InchStandardASMEB16.5-2009(RevisionofASMEB16.5-2003)PipeFlangesandFlangedFittingsNPS1⁄2ThroughNPS24Metric/InchStandardANAMERICANNATIONALSTANDARDDateofIssuance:June30,2009ThenexteditionofthisStandardisscheduledforpublicationin2012.Therewillbenoaddendaissuedtothisedition.ASMEissueswrittenrepliestoinquiriesconcerninginterpretationsoftechnicalaspectsofthisStandard.InterpretationsarepublishedontheASMEWebsiteundertheCommitteePagesat“approve,”“rate,”or“endorse”anyitem,construction,proprietarydevice,oractivity.ASMEdoesnottakeanypositionwithrespecttothevalidityofanypatentrightsassertedinconnectionwithanyitemsmentionedinthisdocument,anddoesnotundertaketoinsureanyoneutilizingastandardagainstliabilityforinfringementofanyapplicableletterspatent,norassumesanysuchliability.Usersofacodeorstandardareexpresslyadvisedthatdeterminationofthevalidityofanysuchpatentrights,andtheriskofinfringementofsuchrights,isentirelytheirownresponsibility.Participationbyfederalagencyrepresentative(s)orperson(s)affiliatedwithindustryisnottobeinterpretedasgovernmentorindustryendorsementofthiscodeorstandard.ASMEacceptsresponsibilityforonlythoseinterpretationsofthisdocumentissuedinaccordancewiththeestablishedASMEproceduresandpolicies,whichprecludestheissuanceofinterpretationsbyindividuals.Nopartofthisdocumentmaybereproducedinanyform,inanelectronicretrievalsystemorotherwise,withoutthepriorwrittenpermissionofthepublisher.TheAmericanSocietyofMechanicalEngineersThreeParkAvenue,NewYork,NY10016-5990Copyright©2009byTHEAMERICANSOCIETYOFMECHANICALENGINEERSAllrightsreservedPrintedinU.S.A.CONTENTSForeword........................................................................viCommitteeRoster................................................................ixCorrespondenceWiththeB16Committee.........................................x1Scope...................................................................12Pressure–TemperatureRatings............................................23ComponentSize.........................................................34Marking.................................................................35Materials................................................................76Dimensions..............................................................97Tolerances...............................................................128PressureTesting.........................................................14Figures1MethodofDesignatingLocationofAuxiliaryConnectionsWhenSpecified..............................................................152MethodofDesignatingOutletsofReducingFittingsinSpecifications.....163ThreadLengthforConnectionTapping..................................174SocketWeldingforConnections.........................................175ButtWeldingforConnections............................................176BossesforConnections..................................................177EndFlangeFacingsandTheirRelationshiptoFlangeThicknessandCenter-to-EndandEnd-to-EndDimensions............................188BevelforWallThicknessestFrom5mmto22mmInclusive.............199BevelforWallThicknessestGreaterThan22mm........................2010InsideContourforUseWithRectangularBackingRing...................2011InsideContourforUseWithTaperBackingRing.........................2112BevelforOutsideThickness.............................................2113BevelforInsideThickness...............................................2114BevelforCombinedThickness...........................................2215StraightHubWeldingFlanges...........................................22Tables1AListofMaterialSpecifications............................................41BListofBoltingSpecificationsApplicableASTMSpecifications.............81CFlangeBoltingDimensionalRecommendations...........................122-1.1Pressure–TemperatureRatingsforGroup1.1Materials...................232-1.2Pressure–TemperatureRatingsforGroup1.2Materials...................242-1.3Pressure–TemperatureRatingsforGroup1.3Materials...................252-1.4Pressure–TemperatureRatingsforGroup1.4Materials...................262-1.5Pressure–TemperatureRatingsforGroup1.5Materials...................272-1.7Pressure–TemperatureRatingsforGroup1.7Materials.............