BS EN 14870-3-2006 石油和天然气工业.管道运输系统的吸入管弯头、配件和法兰 第3部

BRITISHSTANDARDBSEN14870-3:2006Petroleumandnaturalgasindustries—Inductionbends,fittingsandflangesforpipelinetransportationsystems—Part3:FlangesTheEuropeanStandardEN14870-3:2006hasthestatusofaBritishStandardICS23.040.60;75.200  ©BSIISBN0580480011NationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN14870-3:2006.TheUKparticipationinitspreparationwasentrustedbyTechnicalCommitteePSE/17,Materialsandequipmentforpetroleum,petrochemicalandnaturalgasindustries,toSubcommitteePSE/17/2,Transmissionpipelines,whichhastheresponsibilityto:Alistoforganizationsrepresentedonthissubcommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSICatalogueunderthesectionentitled“InternationalStandardsCorrespondenceIndex”,orbyusingthe“Search”facilityoftheBSIElectronicCatalogueorofBritishStandardsOnline.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.—aidenquirerstounderstandthetext;—presenttotheresponsibleinternational/Europeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeepUKinterestsinformed;—monitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,pages2to23andabackcover.TheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.AmendmentsissuedsincepublicationAmd.No.DateComments:Flanges(ISO15590-3:2004,modified)Industriesdupétroleetdugaznaturel-Coudesd'induction,raccordsetbridespoursystèmesdetransportparconduites-Partie3:Brides(ISO15590-3:2004,modifié)Erdöl-undErdgasindustrie-ImInduktionsverfahrengefertigteRohrbögen,FittingsundFlanschefürRohrleitungs-Transportsysteme-Teil3:Flansche(ISO15590-3:2004,modifiziert)ThisEuropeanStandardwasapprovedbyCENon5January2006.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Romania,Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITÉEUROPÉENDENORMALISATIONEUROPÄISCHESKOMITEEFÜRNORMUNGManagementCentre:ruedeStassart,36B-1050Brussels©2006CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN14870-3:2006:E(E)2ContentsPageExplanatorynote.................................................................................................................................................3Foreword..............................................................................................................................................................4Introduction.........................................................................................................................................................51Scope......................................................................................................................................................72Normativereferences............................................................................................................................73Termsanddefinitions...........................................................................................................................94Symbolsandabbreviatedterms........................................................................................................105Designationofflanges........................................................................................................................106Pressureclassanddesign.................................................................................................................117Informationtobesuppliedbythepurchaser.......................................................................