1、BRITISH STANDARD AEROSPACE SERIES BS EN 2656:2001 Pipe coupling Coupling end, welded Geometric configuration The European Standard EN 2656:2001 has the status of a British Standard ICS 43.040.70; 49.035 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 2656:2001 This Britis
2、h Standard, 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 October 2001 BSI 15 October 2001 ISBN 0 580 37189 1 National foreword This British Standard is the offi
3、cial English language version of EN 2656:2001. 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
4、be 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 “
5、Find” 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 le
6、gal 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 pag
7、es This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 4, 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 CommentsEUROPEANST
8、ANDARD NORMEEUROPENNE EUROPISCHENORM EN2656 September2001 ICS49.080 Englishversion AerospaceseriesPipecouplingCouplingend,welded Geometricconfiguration SriearospatialeSystmederaccordementRaccord dextrmitsouderConfigurationgomtrique LuftundRaumfahrtRohrverschraubung AnschweizapfenKonstruktionsblatt T
9、hisEuropeanStandardwasapprovedbyCENon20January2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmayb
10、eobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versio
11、ns. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEF
12、RNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN2656:2001EEN2656:2001(E) Foreword ThisEuropeanStandardhasbeenpreparedbytheEuropeanAssociationofAerospaceManufacturers(AECMA). Afterinquiriesa
13、ndvotescarriedoutinaccordancewiththerulesofthisAssociation,thisStandardhasreceivedthe approvaloftheNationalAssociationsandtheOfficialServicesofthemembercountriesofAECMA,priortoitspresentation toCEN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextorby
14、 endorsement,atthelatestbyMarch2002,andconflictingnationalstandardsshallbewithdrawnatthelatestbyMarch 2002. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsof thefollowingcountriesare boundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland,Fra
15、nce,Germany, Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandtheUnited Kingdom. 2 Page2 EN2656:2001 15October2001EN2656:2001(E) 1Scope Thisstandardspecifiesthedimensionsofweldedcouplingendsforpipecouplingsforaerospaceapplications. 2ConfigurationDimensio
16、ns Accordingtofigure1andtable1. Dimensionsinmillimetres Figure1 Table1 Dimensionsinmillimetres Code a Nominale pressure a d 1 d 2 d 3 d 4 l 1 l 2 nom. tol. kPa 0 0 ,1 + 0 0 ,1 + 0 0 ,1 + 0 0 ,1 + 0 0 ,1 0404 28000 0,4 3,2 4 + 0 0 ,05 4,1 4,7 1,4 0,7 0504 28000 4,2 5 5,1 5,7 0505 28000 0,5 4,0 5,8 06
17、05 28000 5,0 6 + 0 0 ,08 6,1 6,8 0805 21000 7,0 8 8,1 8,8 0806 28000 0,6 6,8 8,9 1005 21000 0,5 9,0 10 10,1 10,8 1008 28000 0,8 8,4 11,1 1205 14000 0,5 11,0 12 12,1 12,8 1,6 0,8 1206 21000 0,6 10,8 12,9 1209 28000 0,9 10,2 13,1 1405 14000 0,5 13,0 14 + 0 0 ,10 14,12 14,8 1408 21000 0,8 12,4 15,1 141
18、0 28000 1,0 12,0 15,1 3 Page3 EN2656:2001 15October2001EN2656:2001(E) Table1 (continued) Dimensionsinmillimetres Code a Nominal pressure a d 1 d 2 d 3 d 4 l 1 l 2 nom. tol. kPa - 0 0 ,1 + 0 0 ,1 + 0 0 ,1 + 0 0 ,1 + 0 0 ,1 1605 10500 0,5 15,0 16 + 0 0 ,10 16,12 16,8 1,6 0,8 1606 14000 0,6 14,8 16,9 1
19、610 21000 1,0 14,0 17,1 1612 28000 1,2 13,6 17,2 1805 10500 0,5 17,0 18 18,12 18,8 1,8 0,9 1807 14000 0,7 16,6 19,0 1810 21000 1,0 16,0 19,1 1813 28000 1,3 15,4 19,2 2006 10500 0,6 18,8 20 20,12 20,9 2007 14000 0,7 18,6 21,0 2012 21000 1,2 17,6 21,1 2015 28000 1,5 17,0 21,2 2207 10500 0,7 20,6 22 22
20、,12 23,0 2208 14000 0,8 20,4 23,1 2212 21000 1,2 19,6 23,2 2216 28000 1,6 18,8 23,3 2508 10500 0,8 23,4 25 25,12 26,1 2,0 1,0 2509 14000 0,9 23,2 26,1 2514 21000 1,4 22,2 26,2 2518 28000 1,8 21,4 26,3 2808 10500 0,8 26,4 28 + 0 0 , , 0 1 2 0 28,12 29,1 2,2 1,1 2810 14000 1,0 26,0 29,1 2816 21000 1,6
21、 24,8 29,3 2820 28000 2,0 24,0 29,4 3210 10500 1,0 30,0 32 32,12 33,1 2,4 1,2 3212 14000 1,2 29,6 33,2 a Correspondstothepipenominaloutsidediameterandwallthickness. 3Designation EXAMPLE 4 Page4 EN2656:2001 15October2001blankBS EN 2656:2001 BSI 389 Chiswick High Road London W4 4AL BSI British Standar
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