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1、BRITISH STANDARD AEROSPACE SERIES BS EN 4550-2:2003 Pipe coupling 37 Design configuration Inch series Part 2: Port ends The European Standard EN 4550-2:2003 has the status of a British Standard ICS 49.080 BS EN 4550-2:2003 This British Standard was published under the authority of the Standards Poli

2、cy and Strategy Committee on 6 February 2003 BSI 6 February 2003 ISBN 0 580 41207 5 National foreword This British Standard is the official English language version of EN 4550-2:2003. The UK participation in its preparation was entrusted by Technical Committee ACE/12, Aerospace fasteners and fasteni

3、ng systems, to Subcommittee ACE/12/1, Aerospace fasteners and fastening systems (international), which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international

4、 or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to i

5、nclude all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any en

6、quiries 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 a front cover, an inside front cover, the EN title page, pages 2 to 5 and a back

7、 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 EUROPISCHENORM EN45502 January2003 ICS49.080 Englishversion AerospaceseriesPipecoupling,37Designconfigurati

8、on InchseriesPart2:Portends ThisEuropeanStandardwasapprovedbyCENon2June2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings

9、uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamest

10、atusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATI

11、ON COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN45502:2003EEN45502:2003(E) 2 Contents page Foreword3 1 Scope 3 2 Normativereferences 3 3 Di

12、mensionsTolerances. .3 4 Designation.5EN45502:2003(E) 3 Foreword Thisdocument(EN45502:2003)hasbeenpreparedbytheEuropeanAssociationofAerospaceManufacturers Standardization(AECMASTAN). AfterenquiriesandvotescarriedoutinaccordancewiththerulesofthisAssociation,thisStandardhasreceived theapprovaloftheNat

13、ionalAssociationsandtheOfficialServicesofthemembercountriesofAECMA,priortoits presentationtoCEN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyJuly2003,andconflictingnationalstandardsshallbewithdrawnatthelatestby July20

14、03. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,

15、Spain,Sweden,SwitzerlandandtheUnitedKingdom. 1Scope Thisstandarddefinesthedimensionsandtolerancesfortheportendofinchseriespipecouplings,37,for aerospaceapplications. MatchedfluidsystemcomponentshallhaveaportconnectioninaccordancewithEN45503. 2 Normativereferences ISO3161 AerospaceUNJthreadsGeneralre

16、quirementsandlimitdimensions EN 45503 AerospaceseriesPipecouplings,37DesignconfigurationInchseriesPart3:Port connections 1) 3 DimensionsTolerances SeeFigure1andTable1.Dimensionsandtolerancesareinmillimetres. 1) PublishedasAECMAPrestandardatthedateofpublicationofthisstandardEN45502:2003(E) 4 NOTEAllo

17、utersurfacesshallbeconcentricwithatoleranceofdiameter0,1mmrelativetotheinnerdiameter A. Figure1EN45502:2003(E) 5 Table1 Dimensional code a Nominal diameter Thread b AB 0,25 F 0 1 , 0 - GL 0,25 M 25 , 0 0 + - 03 4,763 .375024UNJF3A 2,65 2,90 9,15 7,90 1,80 7,80 04 6,350 .437520UNJF3A 4,25 4,50 9,25 9

18、,10 05 7,924 .500020UNJF3A 5,80 6,10 10,80 2,00 10,70 06 9,525 .562518UNJF3A 7,35 7,70 10,15 12,20 0,5 1,3 2,30 12,05 08 12,700 .750016UNJF3A 9,75 10,10 16,75 2,55 16,65 10 15,875 .875014UNJF3A 12,15 12,50 11,15 19,65 3,05 19,50 12 19,050 1.062512UNJ3A 15,30 15,70 24,00 23,85 16 25,400 1.312512UNJ3A

19、 21,20 21,70 12,20 30,35 0,8 1,8 3,30 30,20 a Thiscodecorrespondstothenominaldiametergivenin16 th ofincheswithintwodigits. b QuotedininchesinaccordancewithISO3161 4Designation EXAMPLE: Identityblock EN4550208 Numberofthisstandard Dimensionalcode(seetable1)BS EN 4550-2:2003 BSI 389 Chiswick High Road

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