1、BRITISH STANDARD AEROSPACE SERIES BS EN 4021:2001 Pipe coupling 8 30 in titanium alloy Elbows 90 bulkhead The European Standard EN 4021:2001 has the status of a British Standard ICS 49.025.30; 49.035 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 4021:2001 This British S
2、tandard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 13 November 2001 BSI 13 November 2001 ISBN 0 580 37171 9 National foreword This British Standard is the offic
3、ial English language version of EN 4021:2001. The UK participation in its preparation was entrusted to Technical Committee ACE/69, Aerospace Hydraulic Systems, Fluids and Components which has the responsibility to: A list of organizations represented on this committee can be obtained on request to i
4、ts secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI S
5、tandards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquir
6、ers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises
7、a front cover, an inside front cover, the EN title page, pages 2 to 6, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROP
8、ISCHENORM EN4021 October2001 ICS49.080 Englishversion AerospaceseriesPipecoupling830intitaniumalloyElbows 90,bulkhead SriearospatialeSystmederaccordement830en alliagedetitaneRaccordscouds90pourtraversede cloison LuftundRaumfahrtRohrverschraubung830aus TitanlegierungWinkelSchottverschraubungen90 This
9、EuropeanStandardwasapprovedbyCENon29December2000. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeo
10、btainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions
11、. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRN
12、ORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN4021:2001EEN4021:2001(E) Foreword ThisEuropeanStandardhasbeenpreparedbytheEuropeanAssociationofAerospaceManufacturers(AECMA). Afterinquiriesand
13、votescarriedoutinaccordancewiththerulesofthisAssociation,thisStandardhasreceivedthe approvaloftheNationalAssociationsandtheOfficialServicesofthemembercountriesofAECMA,priortoitspresentation toCEN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextorby e
14、ndorsement,atthelatestbyApril2002,andconflictingnationalstandardsshallbewithdrawnatthelatestbyApril2002. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsof thefollowingcountriesare boundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland,France
15、,Germany, Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandtheUnited Kingdom. 2EN4021:2001(E) 1Scope Thisstandardspecifiesthecharacteristicsofelbows90,bulkhead,forpipecouplings830,intitaniumalloy,foraerospace applications. Nominalpressure:upto28000kPa Te
16、mperaturerange: 55Cto135C 2Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreferenceprovisionsfromotherpublications.Thesenormative referencesarecitedattheappropriateplacesinthetextandthepublicationsarelistedhereafter.Fordatedreferences, subsequentamendmentstoorrevisionsofanyofthe
17、sepublicationsapplytothisEuropeanStandardonlywhen incorporatedinitbyamendmentorrevision.Forundatedreferences,thelatesteditionofthepublicationreferredtoapplies (includingamendments). ISO58553, AerospaceMJthreadsPart3:Limitdimensionsforfittingsforfluidsystems. EN2424, AerospaceseriesMarkingofaerospace
18、products. EN2491, AerospaceseriesMolybdenumdisulphidedrylubricantsCoatingmethods. EN3267, AerospaceseriesWashers,bulkhead,intitaniumalloy. EN3274, AerospaceseriesPipecoupling830ThreadendsGeometricconfiguration. EN3275, AerospaceseriesPipecoupling830upto28000kPaDynamicbeamsealMetricseriesTechnical sp
19、ecification. EN3311, AerospaceseriesTitaniumalloyTIP64001AnnealedBarformachining D 150mm. 1 ) EN3312, AerospaceseriesTitaniumalloyTIP64001Grade2AnnealedForgings D e 150mm. 1 ) EN3314, AerospaceseriesTitaniumalloyTIP64001SolutiontreatedandagedBarformachining D 75mm. 1 ) EN3315, AerospaceseriesTitaniu
20、malloyTIP64001SolutiontreatedandagedForgings D e 75mm. 1 ) 3Requiredcharacteristics 3.1ConfigurationDimensionsMass Accordingtofigure1andtable1.Thevaluesapplybeforelubricating. Dimensionsnotspecifiedareatthemanufacturersoptionprovidedthatthequalificationandacceptancerequire mentsofEN3275,type IIareme
21、t. 1 )PublishedasAECMAPrestandardatthedateofpublicationofthisstandard 3EN4021:2001(E) 3.2Surfaceroughness Accordingtofigure1,unlessotherwisespecifiedinthedesigndocumentation. 3.3Materials AccordingtoEN3311orEN3314,EN3312orEN3315. 3.4Surfacetreatment Lubrication:accordingtoEN2491,onthreadsandsealingf
22、aces. Priortoapplicationofthelubricant,thesurfaceshallbeabrasiveblastedusingnonmetallicgrit. Filmthickness0,005mmto0,013mm. 3.5Internalsurfacefinishing Finishingshallgivearadius Rof0,3mmto1,0mmandasurfaceroughnessof0,8m.Handdeburringisnot permitted. Dimensionsinmillimetres a Areaformarking d Thread
23、b AccordingtoEN3274,formC e Acrossflats s c AccordingtoEN3274,formD f R0,3to1,0 Figure1 4EN4021:2001(E) Table1 Dimensionsinmillimetres Code a Thread b l 1 c l 2 c l 3 s d Mass g/piece 4g6g 0,2 0,2 h13 max. 05 MJ101 16,3 29,3 13,8 8 10,05 06 MJ121,25 17,8 34,0 16,0 9 16,10 08 MJ141,5 20,8 38,8 17,8 1
24、1 22,88 10 MJ161,5 21,8 40,8 18,8 13 29,64 12 MJ181,5 23,8 43,8 20,8 15 37,01 14 MJ201,5 23,8 44,8 21,8 16 58,73 16 MJ221,5 25,8 46,8 23,8 18 64,60 18 MJ241,5 27,8 48,8 25,8 21 71,13 20 MJ271,5 27,8 50,8 27,8 24 89,17 22 MJ301,5 30,8 51,8 28,8 27 104,34 25 MJ331,5 32,8 53,8 30,8 30 139,14 28 MJ361,5
25、 34,8 58,3 33,8 34 172,66 32 MJ391,5 36,4 64,3 39,8 36 212,57 a Correspondstothepipenominaloutsidediameter. b AccordingtoISO58553. c Drilldepthdimension. d Acrossflats 4Designation EXAMPLE NOTEIfnecessary,thecode I9005shallbeplacedbetweenthedescriptionblockandtheidentityblock. 5Marking AccordingtoEN
26、2424,styleAandfigure1. 6Technicalspecification AccordingtoEN3275,type II . 5EN4021:2001(E) 7Installationdetails Seefigure2. Dimensionsinmillimetres Key 1 Bulkhead 2 WasheraccordingtoEN3267 a Griplength b Thread c Thread+0,5 Figure2 6BS EN 4021:2001 BSI 389 Chiswick High Road London W4 4AL BSI Britis
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