BS EN 736-2-1997 Valves Ð Terminology Part 2. Defi

|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||BRITISHSTANDARDBSEN736-2:1997TheEuropeanStandardEN736-2:1997hasthestatusofaBritishStandardICS01.040.23;23.060.01NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWValvesÐTerminologyPart2.DefinitionofcomponentsofvalvesBSEN736-2:1997ThisBritishStandard,havingbeenpreparedunderthedirectionoftheSectorBoardforEngineering,waspublishedundertheauthorityoftheStandardsBoardandcomesintoeffecton15December1997©BSI1997ISBN050289052AmendmentsissuedsincepublicationAmd.No.DateTextaffectedNationalforewordThisBritishStandardistheEnglishlanguageversionofEN736-2:1997.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteePSE/7/1.ValvesÐBasicstandards.whichhastheresponsibilityto:±aidenquirerstounderstandthetext;±presenttotheresponsibleEuropeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;±monitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSIStandardsCatalogueunderthesectionentitled`InternationalStandardsCorrespondenceIndex',orbyusingthe`Find'facilityoftheBSIStandardsElectronicCatalogue.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,pages2to10,aninsidebackcoverandabackcover.CENEuropeanCommitteeforStandardizationComiteÂEuropeÂendeNormalisationEuropaÈischesKomiteefuÈrNormungCentralSecretariat:ruedeStassart36,B-1050Brussels©1997CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembersRef.No.EN736-2:1997EEUROPEANSTANDARDEN736-2NORMEEUROPEÂENNEEUROPAÈISCHENORMAugust1997ICS01.040.23;23.060.01Descriptors:Valvesandfittings,components,vocabulary,multilingualnomenclatureEnglishversionValvesÐTerminologyÐPart2:DefinitionofcomponentsofvalvesAppareilsderobinetterieÐTerminologieÐPartie2:DeÂfinitiondescomposantsdesappareilsderobinetterieArmaturenÐTerminologieÐTeil2:DefinitionderArmaturenteileThisEuropeanStandardwasapprovedbyCENon1997-07-24.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom.Page2EN736-2:1997©BSI1997ForewordThisEuropeanStandardhasbeenpreparedbyTechnicalCommitteeCEN/TC69,Industrialvalves,oftheSecretariatwhichisheldbyAFNOR.ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextorbyendorsement,atthelatestbyFebruary1998,andconflictingnationalstandardsshallbewithdrawnatthelatestbyFebruary1998.EN736comprisesthreeparts:Part1:DefinitionoftypesofvalvesPart2:DefinitionofcomponentsofvalvesPart3:DefinitionoftermsAccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandtheUnitedKingdom.ContentsPageForeword2Introduction31Scope32Normativereferences33Definitions3AnnexA(informative)Glossary7Page3EN736-2:1997©BSI1997IntroductionThisisthefirststepinharmonizingthevalveterminologyinEurope.ItispossiblethatothernamesofcomponentsorotherdefinitionswillbefoundinotherEuropeanStandards.ExpertsestablishingEuropeanStandardsareaskedtousethenameofcomponentsandthedefinitionsgiveninthisstandard.IfothernamesofcomponentsordefinitionsareneededoralreadypublishedinEuropeanStandardspleasecontacttheCEN/TC69SecretariatforaddingorharmonizingthenamesofcomponentsandtheirdefinitionsintheseEuropeanStandards.1ScopeThisstandardspecifiesthenamesofcomponentsofvalvesandtheirdefinitions.Ithasthepurposetoprovideauniformterminologyforallcomponentsofvalves.Thisstandardcoverscomponentscommontomorethanonetypeofvalve.Namesofcomponentsanddefinitionsspecifictoonetypeofvalvewillbefoundintherelevantproductorperformancestandard.2NormativereferencesThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.Thesenormativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelistedhereafter.Fordatedreferences,subsequentame