1、BRITISH STANDARD AEROSPACE SERIES BS EN 3247:2001 Pipe coupling 8 30 in titanium alloy Unions, bulkhead welded end The European Standard EN 3247:2001 has the status of a British Standard ICS 49.080 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 3247:2001 This British Sta
2、ndard, 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 15 November 2001 BSI 15 November 2001 ISBN 0 580 37120 4 National foreword This British Standard is the officia
3、l English language version of EN 3247:2001. The UK participation in its preparation was entrusted to Technical Committee ACE/12/1, Aerospace Fasteners, Fastening Systems, Details and Parts (International), which has the responsibility to: A list of organizations represented on this committee can be
4、obtained on request to its 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 “Fin
5、d” facility of the BSI Standards 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
6、 obligations. aid enquirers 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
7、This document comprises 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 CommentsEUROPEANSTAND
8、ARD NORMEEUROPENNE EUROPISCHENORM EN3247 October2001 ICS49.080 Englishversion AerospaceseriesPipecoupling830intitaniumalloy Unions,bulkheadweldedend SriearospatialeSystmederaccordement830en alliagedetitaneRaccordsdroitssouderpourtraverse decloison LuftundRaumfahrtRohrverschraubung830aus Titanlegieru
9、ngGeradeSchottverschraubungenmit Anschweiende ThisEuropeanStandardwasapprovedbyCENon6January2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalr
10、eferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagem
11、entCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION C
12、OMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN3247:2001EEN3247:2001(E) 2 Foreword ThisEuropeanStandardhasbeenpreparedbytheEuropeanAssociation
13、ofAerospaceManufacturers (AECMA). AfterinquiriesandvotescarriedoutinaccordancewiththerulesofthisAssociation,thisStandardhas receivedtheapprovaloftheNationalAssociationsandtheOfficialServicesofthemembercountriesof AECMA,priortoitspresentationtoCEN. ThisEuropeanStandardshallbegiventhestatusofanational
14、standard,eitherbypublicationofanidentical textorbyendorsement,atthelatestbyApril2002,andconflictingnationalstandardsshallbewithdrawnat thelatestbyApril2002. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:A
15、ustria,Belgium,CzechRepublic,Denmark, Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal, Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN3247:2001(E) 3 1 Scope Thisstandardspecifiesthecharacteristicsofunions,bulkhead,weldedend,forpipecouplings8 30,in titaniumal
16、loy,foraerospaceapplications. Nominalpressure:28000kPa Temperaturerange:55 Cto135 C 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreferenceprovisionsfromotherpublications. Thesenormativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelisted hereafter.For
17、datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplyto thisEuropeanStandardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferences,the latesteditionofthepublicationreferredtoapplies(includingamendments). ISO58553 AerospaceMJthreadsPart3:Limitdimensionsforfittings
18、forfluidsystems EN2424 AerospaceseriesMarkingofaerospaceproducts EN2491 AerospaceseriesMolybdenumdesulphidedrylubricantsCoatingmethods EN2656 AerospaceseriesPipecouplingCouplingends,weldedGeometricconfiguration EN3267 AerospaceseriesWashers,bulkhead,intitaniumalloy EN3274 AerospaceseriesPipecoupling
19、8 30ThreadendsGeometricconfiguration EN3275 AerospaceseriesPipecoupling8 30upto28000kPaDynamicbeamseal MetricseriesTechnicalspecification EN3311 AerospaceseriesTitaniumalloyTIP64001AnnealedBarformachining D 150mm 1) EN3314 AerospaceseriesTitaniumalloyTIP64001SolutiontreatedandagedBarfor machining D
20、75mm 1) 3 Requiredcharacteristics 3.1 ConfigurationDimensionsMass Accordingtofigure1andfigure2andtable1.Thevaluesapplybeforelubricating. Dimensionsnotspecifiedareatthemanufacturersoptionprovidedthatthequalificationandacceptance requirementsofEN3275,type IIaremet. 1) PublishedasAECMAPrestandardatthed
21、ateofpublicationofthisstandardEN3247:2001(E) 4 3.2 Surfaceroughness Accordingtofigure1andfigure2,unlessotherwisespecifiedinthedesigndocumentation 3.3 Materials AccordingtoEN3311orEN3314 3.4 Surfacetreatment Weldedendwithoutsurfacetreatment,min.10mm(outsideandborediameters) Lubrication:accordingtoEN2
22、491,onthreadandsealingface. Priortoapplicationofthelubricant,thesurfaceshallbeabrasiveblastedusingnonmetallicgrit. Filmthickness0,005mmto0,013mm Dimensionsinmillimetres Dimensionsinmillimetres a Areaformarking b Acrossflats s c AccordingtoEN2656 d AccordingtoEN3274,formE e Thread NOTEPipeinternaldia
23、meter d1inaccordancewith EN2656diameter d1 inaccordancewithEN3274 Figure1 a Areaformarking b Acrossflats s c AccordingtoEN2656 d AccordingtoEN3274,formE e Thread NOTEPipeinternaldiameter d1inaccordancewith EN2656diameter d1 inaccordancewithEN3274 Figure2EN3247:2001(E) 5 Table1 Dimensionsinmillimetre
24、s Mass Thread c l 1 d l 2 l 3 l 4 rs g/piece Code a b 4g6g 0,2 0,5 0,2 +0,2 0 h13 max. 0504 0505 MJ10 1 38 13 19 22,5 5 14 10,69 10,80 0605 MJ12 1,25 40 13 18 22 5 17 16,08 0805 0806 MJ14 1,5 42 13 17 21 5 19 19,67 19,83 1005 1008 MJ16 1,5 43 13 17 21 5 22 25,16 26,00 1205 1206 1209 MJ18 1,5 45 13 1
25、7 22 5 24 31,66 31,94 32,74 1405 1408 1410 MJ20 1,5 46 14 18 23 5 27 40,00 41,04 41,66 1605 1606 1610 1612 MJ22 1,5 48 16 20 25 5 30 51,09 51,53 53,23 54,03 1805 1807 1810 1813 MJ24 1,5 50 18 22 27 6 32 53,10 54,21 55,78 57,29 2006 2007 2012 2015 MJ27 1,5 51 19 23 28 7 34 60,72 61,37 64,38 66,11 220
26、8 2212 2216 MJ30 1,5 51 19 23 28 7 36 68,84 71,55 74,11 2508 2509 2514 2518 MJ33 1,5 52 20 24 29 7 41 88,99 89,79 93,70 96,73 2808 2810 2816 2820 MJ36 1,5 53,5 20 24 29 8 46 106,86 108,65 113,92 117,32 3210 3212 MJ39 1,5 55,5 22 26 31 8 50 123,11 134,47 a Correspondstothepipenominaloutsidediameteran
27、dwallthickness b RelationshipbetweencodeandpressureclassificationaccordingtoEN2656 c AccordingtoISO58553 d Accordingto l4andEN3274,formEEN3247:2001(E) 6 4 Designation EXAMPLE: Description block Identityblock UNION,BULKHEAD EN32470806 Numberofthisstandard Code(seetable1) NOTE:Ifnecessary,thecode I900
28、5shallbeplacedbetweenthedescriptionblockandtheidentityblock. 5 Marking AccordingtoEN2424,styleAandfigures1and2. 6 Technicalspecification AccordingtoEN3275,type II 7 Installationdetails Seefigure3 Dimensionsinmillimetres Key 1 Bulkhead 2 WasheraccordingtoEN3267 a Griplength b Thread c Thread+0,5 Figu
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