MSS SP-79-2009 承插焊缩径接头 Socket Welding Reducer Inse

MSSSP-79-2009SocketWeldingReducerInsertsStandardPracticeDevelopedandApprovedbytheManufacturersStandardizationSocietyoftheValveandFittingsIndustry,Inc.127ParkStreet,NEVienna,Virginia22180Phone:[phone]Fax:[phone]e-mail:[e-mail](s)atthedateofissueofthisMSSSP.AnypartofthisStandardPracticemaybequoted.Creditlinesshouldread`extractedfromMSSSP-79-2009withpermissionofthepublisher,theManufacturersStandardizationSociety.'ReproductionprohibitedundercopyrightconventionunlesswrittenpermissionisgrantedbytheManufacturersStandardizationSocietyoftheValveandFittingsIndustryInc.OriginallyApprovedMarch,1974Copyright©,1999byManufacturersStandardizationSocietyoftheValveandFittingsIndustry,Inc.PrintedinU.S.A.MSSSTANDARDPRACTICESP-79iiTABLEOFCONTENTSSECTIONPAGE0PURPOSE........................................................................................................................................11SCOPE.............................................................................................................................................12REFERENCES.................................................................................................................................13RATINGS........................................................................................................................................24SIZE.................................................................................................................................................25MARKING.......................................................................................................................................26MATERIAL.....................................................................................................................................37DESIGNANDCAPABILITY.........................................................................................................38DIMENSIONSANDTOLERANCES............................................................................................39TESTING.........................................................................................................................................310FINISH.............................................................................................................................................311CORROSIONPROTECTION.........................................................................................................312CAUTIONARYNOTEREGARDINGINSTALLATIONOFSOCKETWELDEDJOINTS......3TABLE1FittingSizes/PipeCorrelation..........................................................................................................42NominalWallThicknessofSchedule160Pipe,1/4”&3/8”..........................................................43SteelSocketWeldingReducerInsertDimensionsandTolerances..............................................5,6FIGURE1GapRecommendations....................................................................................................................72WeldingGapandMinimumSocketWallThickness.......................................................................7ANNEXAReferencedStandardsandApplicableDates...................................................................................8MSSSTANDARDPRACTICESP-79iiiMSS127ParkStreet,NE•Vienna,VA22180-4602•703-281-6613•FAX[phone]••e-mail:[e-mail]:RobertF.O’NeillERRATASHEETFORMSSSP-79-2009SocketWeldingReducerInsertsSeptember9,2010Notethefollowingcorrection:1.Page5,Table3,SteelSocketWeldingReducerInsertDimensionsandTolerances.UnderNominalPipeSize(NPS)1½x1,the“TYPE”“6M”value(thirdcolumnfromright)shouldread“1”insteadoftheexisting“2”.ThisErrataSheetisincludedintheStandardPractice.FutureprintingoftheStandardPracticewillincludethisreviseddata.PRESIDENT:J.V.Ballun–Val-MaticValve&Mfg.Corp.VICEPRESIDENTS:T.J.Hannafin–KITZCorp.ofAmericaM.A.Clark–NIBCO,Inc.TREASURER:G.M.Johnson–UnitedValveManufacturersStandardizationSocietyoftheValveAndFittingsIndustry,Inc.MSSSTANDARDPRACTICESP-79ivFOREWORDThisdocumentestablishesaStandardPracticeforSocketWeldingReducerInsertsproducedforanumberofyearsbyvariousmanufacturerstovaryingdimensionsalthoughbasi