BS EN 4020-2009 Aerospace series - Pipe coupling 8

BSEN4020:2009ICS49.080NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWBRITISHSTANDARDAerospaceseries—Pipecoupling8㜳�30'intitaniumalloy—Elbows90㜳�,weldedendwiththrustwirenutThisBritishStandardwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon31July2009.©BSI2009ISBN9780580570537Amendments/corrigendaissuedsincepublicationDateCommentsBSEN4020:2009NationalforewordThisBritishStandardistheUKimplementationofEN4020:2009.ItsupersedesBSEN4020:2001whichiswithdrawn.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeACE/69,Aerospacehydraulicsystems,fluidsandcomponents.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandardcannotconferimmunityfromlegalobligations.BSEN4020:2009EUROPEANSTANDARDNORMEEUROPÉENNEEUROPÄISCHENORMEN4020July2009ICS49.080SupersedesEN4020:2001EnglishVersionAerospaceseries-Pipecoupling8°30'intitaniumalloy-Elbows90°,weldedendwiththrustwirenutSérieaérospatiale-Systèmederaccordement8°30'enalliagedetitane-Raccordscoudésà90°àsouder,avecécrouàjoncLuft-undRaumfahrt-Rohrverschraubung8°30'ausTitanlegierung-Winkelverschraubungen90°mitAnschweißende,mitMuttermitSchubdrahtThisEuropeanStandardwasapprovedbyCENon12March2009.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCENManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsbilityofaCENmemberintoitsownlanguageandnotifiedtotheCENManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,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:AvenueMarnix17,B-1000Brussels©2009CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN4020:2009:EBSEN4020:2009EN4020:2009(E)2ContentsPageForeword..............................................................................................................................................................31Scope......................................................................................................................................................42Normativereferences............................................................................................................................43Requiredcharacteristics.......................................................................................................................53.1Configuration—Dimensions—Mass.................................................................................................53.2Surfaceroughness................................................................................................................................53.3Materials.................................................................................................................................................53.4Surfacetreatment..................................................................................................................................53.5Internalsurfacefinishing......................................................................................................................54Designation............................................................................................................................................85Marking...................................................................................................................................................86Technicalspecification.........................................................................................................................87Qualityassurance..................................................................................................................................8BSEN4020:2009EN4020:2009(E)3ForewordThisdocument(EN4020:2009)hasbeenpreparedbytheAerospaceandDefenceIndustriesAssociationofEurope-Standardization(ASD-STAN).AfterenquiriesandvotescarriedoutinaccordancewiththerulesofthisAssociation,thisStandardhasreceivedtheapprovaloftheNationalAssociationsandtheOfficialServicesofthemembercountriesofASD,priortoitspresentationtoCEN.ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextorbyendorsement,atthelatestbyJanuary2010,andconflictingnationalstandardsshallbewithdrawnatthela