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Face-to-FaceDimensionsforIntegralFlangedGlobe-StyleControlValveBodies(ANSIClasses125,150,250,300,and600)FormerlyISA–S4.0.01Approved2September1992ISA–75.03–1992FormerlyISA–S75.03–1992STANDARDISATheInstrumentation,Systems,andAutomationSociety–TMCopyright��1992bytheInstrumentSocietyofAmerica.Allrightsreserved.PrintedintheUnitedStatesofAmerica.Nopartofthispublicationmaybereproduced,storedinaretrievalsystem,ortransmittedinanyformorbyanymeans(electronic,mechanical,photocopying,recording,orotherwise),withoutthepriorwrittenpermissionofthepublisher.ISA67AlexanderDriveP.O.Box12277ResearchTrianglePark,NorthCarolina27709ISA-75.03-1992,Face-to-FaceDimensionsforIntegralFlangedGlobe-StyleControlValveBodies(ANSIClasses125,150,250,300,and600)ISBN1-55617-316-4ISA-S75.03-19923PrefaceThispreface,aswellasallfootnotesandappendices,isincludedforinformationalpurposesandisnotpartofISA-75.03-1992.ThisstandardhasbeenpreparedaspartoftheserviceofISAtowardagoalofuniformityinthefieldofinstrumentation.Tobeofrealvalue,thisdocumentshouldnotbestatic,butshouldbesubjecttoperiodicreview.Towardthisend,theSocietywelcomesallcommentsandcriticisms,andasksthattheybeaddressedtotheSecretary,StandardsandPracticesBoard,ISA,67AlexanderDrive,P.O.Box12277,ResearchTrianglePark,NC27709,Telephone(919)549-8411,e-mail:standards@isa.org.TheISAStandardsandPracticesDepartmentisawareofthegrowingneedforattentiontothemetricsystemofunitsingeneral,andtheInternationalSystemofUnits(SI)inparticular,inthepreparationofinstrumentationstandards.TheDepartmentisfurtherawareofthebenefitstoU.S.A.usersofISAStandardsofincorporatingsuitablereferencestotheSI(andthemetricsystem)intheirbusinessandprofessionaldealingswithothercountries.Towardthisend,thisDepartmentwillendeavortointroduceSI-acceptablemetricunitsinallnewandrevisedstandardstothegreatestextentpossible.TheMetricPracticeGuide,whichhasbeenpublishedbytheInstituteofElectricalandElectronicEngineersasANSI/IEEEStd.268-1982,andfuturerevisionswillbethereferenceguidefordefinitions,sym...