MSS SP-118-2007 法兰端,无法兰端,螺纹端和焊接端紧凑型钢制截止阀和止回阀(化工和石油

MSSSP-118-2007MSSCompactSteelGlobe&CheckValvesFlanged,Flangeless,Threaded,&WeldingEnds(Chemical&PetroleumRefineryService)StandardPracticeDevelopedandApprovedbytheManufacturersStandardizationSocietyoftheValveandFittingsIndustry,Inc.127ParkStreet,NEVienna,Virginia22180Phone:[phone]Fax:[phone]e-mail:[e-mail]`,,```,,,,````-`-`,,`,,`,`,,`---MSSSTANDARDPRACTICESP-118iThisMSSStandardPracticewasdevelopedundertheconsensusoftheMSSTechnicalCommittee114andtheMSSCoordinatingCommittee.ThecontentofthisStandardPracticeistheresultoftheeffortsofcompetentandconcernedvolunteerstoprovideaneffective,clear,andnon-exclusivespecificationthatwillbenefittheindustryasawhole.ThisMSSStandardPracticeisintendedasabasisforcommonpracticebythemanufacturer,theuser,andthegeneralpublic.TheexistenceofanMSSStandardPracticedoesnotinitselfprecludethemanufacture,sale,oruseofproductsnotconformingtotheStandardPractice.Mandatoryconformanceisestablishedonlybyreferenceinacode,specification,salescontract,orpubliclaw,asapplicable.UnlessotherwisespecificallynotedinthisMSSSP,anystandardreferredtohereinisidentifiedbythedateofissuethatwasapplicabletothereferencedstandard(s)atthedateofissueofthisMSSSP.(SeeAnnexB.)Non-toleranceddimensionsinthisStandardPracticearenominal,and,unlessotherwisespecified,shallbeconsidered“forreferenceonly”.InthisStandardPracticeallnotes,annexes,tables,andfiguresareconstruedtobeessentialtotheunderstandingofthemessageofthestandard,andareconsideredpartofthetextunlessnotedassupplemental.Allappendicesappearinginthisdocumentareconstruedassupplemental.Supplementalinformationdoesnotincludemandatoryrequirements.Substantivechangesinthis2007editionare“flagged”byparallelbarsasshownonthemarginsofthisparagraph.Thespecificdetailofthechangemaybedeterminedbycomparingthematerialflaggedwiththatinthepreviousedition.Anypartofthisstandardmaybequoted.Creditlinesshouldread`ExtractedfromMSSSP-118,2007withpermissionofthepublisher,theManufacturersStandardizationSociety.'ReproductionprohibitedundercopyrightconventionunlesswrittenpermissionisgrantedbytheManufacturersStandardizationSocietyoftheValveandFittingsIndustryInc.OriginallyApprovedOctober,1996Copyright©,1996byManufacturersStandardizationSocietyoftheValveandFittingsIndustry,Inc.PrintedinU.S.A.CopyrightMSSProvidedbyIHSunderlicensewithMSSNotforResaleNoreproductionornetworkingpermittedwithoutlicensefromIHS--`,,```,,,,````-`-`,,`,,`,`,,`---MSSSTANDARDPRACTICESP-118iiTABLEOFCONTENTSSECTIONPAGE1SCOPE.................................................................................................................................................12MARKING..........................................................................................................................................13DESIGNANDMATERIALS.............................................................................................................24EXAMINATIONANDTEST.............................................................................................................55SHIPPINGINFORMATION...............................................................................................................5TABLE1Pressure-TemperatureRatingsforClass800Globe&CheckValves.................................................62TypicalMaterialSpecificationsandApplicableASTMSpecifications..............................................83BodyandBonnetWallThickness........................................................................................................94NominalSeatingSurfaceMaterials...................................................................................................105StemMaterial.....................................................................................................................................116MinimumStemDiameter..................................................................................................................127ValveSeatPortOpening....................................................................................................................128MinimumDepthofPacking...............................................................................................................13FIGURE1TypicalInsideScrewwithRisingStem(ISRS)GlobeValve............................................................142TypicalOutsideScrewandYoke(OS&Y)GlobeValve...................................................................143TypicalUnionBonnetInsideScrew(ISRS)GlobeValve.................................................................154TypicalSealWeldBonnetOutsideScrewandYoke(OS&Y)GlobeValve.....................................155TypicalPistonCheckValve...............................................................................................................166TypicalBallCheckValve...............................................................................................