1、BRITISH STANDARD AEROSPACE SERIES BS EN 4556:2003 Pipe coupling 37 , in heat resisting steel Cap assemblies Inch series The European Standard EN 4556:2003 has the status of a British Standard ICS 49.080 BS EN 4556:2003 This British Standard was published under the authority of the Standards Policy a
2、nd Strategy Committee on 28 February 2003 BSI 28 February 2003 ISBN 0 580 41340 3 National foreword This British Standard is the official English language version of EN 4556:2003. The UK participation in its preparation was entrusted to Technical Committee ACE/69, Aerospace hydraulic systems, fluids
3、 and components, which has the responsibility to: A list of organizations represented on this committee can 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 Cata
4、logue 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 include all the necessary provisions of a contract. Users are responsible for its co
5、rrect 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 enquiries on the interpretation, or proposals for change, and keep the UK interests i
6、nformed; 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 7 and a back cover. The BSI copyright date displayed in this document indicates when the docume
7、nt was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN4556 February2003 ICS49.080 Englishversion AerospaceseriesPipecoupling37,inheatresistingsteel CapassembliesInchseries SriearospatialeSystmederaccordement37,en acierrsistantc
8、haudEnsemblesdobturationSrie inch ThisEuropeanStandardwasapprovedbyCENon14September2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferences
9、concernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentre
10、hasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,SlovakRepublic,Spain,Sweden,Switzerland and UnitedKingdom. EUROPEANCOMMITT
11、EEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN4556:2003EEN4556:2003(E) 2 Contents Foreword3 1 Scope 3 2 Normativerefere
12、nces 3 3 Requiredcharacteristics .4 3.1 ConfigurationDimensionsTolerancesMasses .4 3.2 Materials4 3.3 Surfacetreatment . .4 3.4 Cap 5 4 Capassembly .6 5 Designation.7 6 Marking .7 7 Technicalspecification . 7EN4556:2003(E) 3 Foreword ThisdocumentEN4556:2003hasbeenpreparedbytheEuropeanAssociationofAe
13、rospaceManufacturers (AECMA). AfterenquiriesandvotescarriedoutinaccordancewiththerulesofthisAssociation,thisStandardhasreceived theapprovaloftheNationalAssociationsandtheOfficialServicesofthemembercountriesofAECMA,priortoits presentationtoCEN. ThisEuropeanStandardshallbegiventhestatusofanationalstan
14、dard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyAugust2003,andconflictingnationalstandardsshallbewithdrawnatthelatestby August2003. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Aus
15、tria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandUnitedKingdom. 1Scope Thisstandardspecifiesthecharacteristicsofcapassembliesforinchseriespipecouplings,37,inheatresisting
16、steel,foraerospaceapplications. MateablewithEN4552,EN4553orEN4554 Nominalpressure:ClassDinaccordancewithISO6771 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetextandthepublic
17、ationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). ISO6771 AerospaceFluidsystemsan
18、dcomponentsPressureandtemperatureclassifications. EN2424 AerospaceseriesMarkingofaerospaceproducts. EN2491 AerospaceseriesMolybdenumdisulphidedrylubricantsCoatingmethods. EN2786 AerospaceseriesElectrolyticsilverplatingoffasteners 1) . EN3468 AerospaceseriesSteelFEPA13Softened500 R m 700MPaForgingsD
19、e 100mm 1) . 1) PublishedasAECMAPrestandardatthedateofpublicationofthisstandardEN4556:2003(E) 4 EN3487 AerospaceseriesSteelFEPA13Softened500 R m 700MPaBarsformachiningD e 100 mm 1) . EN45504 AerospaceseriesPipecouplings37DesignconfigurationInchseriesPart4:Femalesealing ends. EN4551 AerospaceseriesPi
20、pecouplings37,inheatresistingsteelSwivelnutsInchseries. EN4552 AerospaceseriesPipecouplings37,spherical,inheatresistingsteelStraightnipples,weldedend Inchseries. EN4553 AerospaceseriesPipecouplings37,spherical,inheatresistingsteelElbow90nipples,welded endInchseries. EN4554 AerospaceseriesPipecouplin
21、gs37,spherical,inheatresistingsteelStraightunions,threaded Inchseries. EN4560 AerospaceseriesPipecouplings37,spherical,upto21000kPaInchseriesTechnical specification. 3 Requiredcharacteristics 3.1 ConfigurationDimensionsTolerancesMasses SeeFigures1and2andTables1to4.Dimensionsandtolerancesareinmillime
22、tres. Table1 Code Lockingwireholeoption N withoutlockingwirehole Y with2lockingwireholes 3.2Materials Nut:accordingtoEN4551. Cap:accordingtoEN3468withminimumhardnessHB 140orEN3487withminimumhardnessHB 140. 3.3Surface treatment Cap:None Nut:SeeTable2. Table2 Code Surfacetreatment Specification A None
23、 B Molybdenumdisulphidecoating EN2491 C Silverplating EN2786EN4556:2003(E) 5 3.4Cap Key 1 SeeEN45504 2 Optionalshape 3 R1to2 4( AperEN45504) 5( EperEN45504) Figure1 Table3 Dimensional code a Nominal diameter BC 0,25 GH 1,0 03 4,763 5,87 5,94 EN4550403 8 04 6,350 7,47 7,54 EN4550404 05 7,925 9,22 9,2
24、9 EN4550405 8,3 06 9,525 10,90 10,97 EN4550406 8,7 08 12,700 14,20 14,27 EN4550408 9,7 10 15,875 17,45 17,52 EN4550410 10,0 12 19,050 20,91 20,98 EN4550412 10,2 16 25,400 27,39 27,45 5,80 EN4550416 10,6 a Thiscodecorrespondstothenominaldiametergivenin16thofincheswithintwodigits.EN4556:2003(E) 6 4Cap
25、 assembly Key 1 Stake4placesminimumequallyspaced(seenotes) 2C a p 3N u t 4 Marking 53 D v i e w NOTE1Donotsupportcaponseatduringstakingormarking. NOTE2Capshallbefreefromdefectsasaresultofstakingormarking NOTE3Nutshallspinfreelyonthecapafterstakingormarking NOTE4Minimumpushoutforceofthecap:45N Figure
26、2 Table4 Withoutsurfacetreatmentonnut(codeA) Dimensionalcode a Nominaldiameter Thread b Nut Mass quotedin kg/1000parts Whenlockingwire holeoptioncode is“N“ Whenlocking wirehole optioncodeis “Y“ 03 4,763 .375024UNJF3B EN455103AN EN455103AY 12 04 6,350 .437520UNJF3B EN455104AN EN455104AY 15 05 7,924 .
27、500020UNJF3B EN455105AN EN455105AY 19 06 9,525 .562518UNJF3B EN455106AN EN455106AY 23 08 12,700 .750016UNJF3B EN455108AN EN455108AY 40 10 15,875 .875014UNJF3B EN455110AN EN455110AY 50 12 19,050 1.062512UNJ3B EN455112AN EN455112AY 85 16 25,400 1.312512UNJ3B EN455116AN EN455116AY 115 a Thiscodecorresp
28、ondstothenominaldiametergivenin16thofincheswithintwodigits b QuotedininchesinaccordancewithISO3161EN4556:2003(E) 7 Table5 Withsurfacetreatmentonnut(codeBorC) Nut Whensurfacetreatmentoption codeis“B“ Whensurfacetreatmentoptioncode is“C“ Dimensionalcode a Nominal diameter Thread b Whenlocking wirehole
29、 optioncodeis “N“ Whenlocking wirehole optioncodeis “Y“ Whenlocking wireholeoption codeis“N“ Whenlocking wireholeoption codeis“Y“ 03 4,763 .375024UNJF3A EN455103BN EN455103BY EN455103CN EN455103CY 04 6,350 .437520UNJF3A EN455104BN EN455104BY EN455104CN EN455104CY 05 7,924 .500020UNJF3A EN455105BN EN
30、455105BY EN455105CN EN455105CY 06 9,525 .562518UNJF3A EN455106BN EN455106BY EN455106CN EN455106CY 08 12,700 .750016UNJF3A EN455108BN EN455108BY EN455108CN EN455108CY 10 15,875 .875014UNJF3A EN455110BN EN455110BY EN455110CN EN455110CY 12 19,050 1.062512UNJ3A EN455112BN EN455112BY EN455112CN EN455112C
31、Y 16 25,400 1.312512UNJ3A EN455116BN EN455116BY EN455116CN EN455116CY a Thiscodecorrespondstothenominaldiametergivenin16th ofincheswithintwodigits. b QuotedininchesinaccordancewithISO3161 5Designation EXAMPLE: Descriptionblock Identityblock CAPASSEMBLY EN455610 A N Numberofthisstandard Dimensionalco
32、de(seeTables3to5) Nutsurfacetreatmentcode(seeTable2) Lockingwireholeoptioncode(seeTable1) NOTEIfnecessary,thecodeI9005shallbeplacedbetweenthedescriptionblockandtheidentityblock. 6Marking AccordingtoEN2424,styleAandFigures1and2. 7 Technicalspecification AccordingtoEN4560BS EN 4556:2003 BSI 389 Chiswi
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