1、BRITISH STANDARD AEROSPACE SERIES BS EN 4553:2003 Pipe coupling 37 , spherical, in heat resisting steel Elbow 90 nipples, welded end Inch series The European Standard EN 4553:2003 has the status of a British Standard ICS 49.080 BS EN 4553:2003 This British Standard was published under the authority
2、of the Standards Policy and Strategy Committee on 28 February 2003 BSI 28 February 2003 ISBN 0 580 41337 3 National foreword This British Standard is the official English language version of EN 4553:2003. The UK participation in its preparation was entrusted to Technical Committee ACE/69, Aerospace
3、hydraulic systems, fluids 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
4、 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 include all the necessary provisions of a contract. Users a
5、re 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 enquiries on the interpretation, or proposals for change, an
6、d 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 7 and a back cover. The BSI copyright date displayed in this document
7、indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN4553 February2003 ICS49.080 Englishversion AerospaceseriesPipecoupling37,spherical,inheatresisting steelElbow90nipples,weldedendInchseries Sriearosp
8、atialeSystmederaccordementsphrique 37,enacierrsistantchaudMamelonscouds90 souderSrieinch ThisEuropeanStandardwasapprovedbyCENon14September2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithout
9、anyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENm
10、emberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,SlovakRepublic,Spai
11、n,Sweden,Switzerland and UnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN4553:2003EEN4553:2
12、003(E) 2 Contents Foreword3 1 Scope 3 2 Normativereferences 3 3 Requiredcharacteristics .4 3.1 ConfigurationDimensionsTolerancesMasses .4 3.2 Materials4 4 Designation.7 5 Marking .7 6 Technicalspecification . 7EN4553:2003(E) 3 Foreword ThisdocumentEN4553:2003hasbeenpreparedbytheEuropeanAssociationof
13、AerospaceManufacturers (AECMA). AfterenquiriesandvotescarriedoutinaccordancewiththerulesofthisAssociation,thisStandardhasreceived theapprovaloftheNationalAssociationsandtheOfficialServicesofthemembercountriesofAECMA,priortoits presentationtoCEN. ThisEuropeanStandardshallbegiventhestatusofanationalst
14、andard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyAugust2003,andconflictingnationalstandardsshallbewithdrawnatthelatestby August2003. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:A
15、ustria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandUnitedKingdom. 1Scope Thisstandardspecifiesthecharacteristicsofweldedelbow90nipplesforinchseriespipecouplings,37, spheri
16、cal,inheatresistingsteel,foraerospaceapplications. Nominalpressure:ClassDinaccordancewithISO6771 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelisted
17、hereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). ISO3161 AerospaceUNJthreadsGeneralrequirements
18、andlimitdimensions. ISO6771 AerospaceFluidsystemsandcomponentsPressureandtemperatureclassifications. EN2424 AerospaceseriesMarkingofaerospaceproducts. EN3363 AerospaceseriesSteelFECM38SolutiontreatedR m 485MPaSandorinvestmentcasting 1) . EN3468 AerospaceseriesSteelFEPA13Softened500 R m 700MPaForging
19、sD e 100mm 1) . EN3487 AerospaceseriesSteelFEPA13Softened500 R m 700MPaBarsformachiningD e 100 mm 1) . 1) PublishedasAECMAPrestandardatthedateofpublicationofthisstandardEN4553:2003(E) 4 EN4549 AerospaceseriesPipecouplings,inheatresistingsteelorinheatresistingnickelalloyCoupling end,weldDesignconfigu
20、rationInchseries. EN45501 AerospaceseriesPipecouplings,37,sphericalDesignconfigurationInchseriesPart1:Male sealingends. EN4560 AerospaceseriesPipecouplings37,spherical,upto21000kPaInchseriesTechnical specification. 3 Requiredcharacteristics 3.1 ConfigurationDimensionsTolerancesMasses SeeFigures1and2
21、andTables1and2.Dimensionsandtolerancesareinmillimetres. 3.2Materials EN3363withminimumhardnessHB140orEN3468withminimumhardnessHB140orEN3487with minimumhardnessHB140 Key 1 SeeEN45501 2 Threadssurfacewillbeachievedbynormalmethodsofmanufacture. 33 D view 4Detail V 5 R0,8to1,3 6 WallthicknessWinthisarea
22、 7Thread 8Marking 9( EperEN45501) NOTEThegeometricaltolerancesgiveninFigure2areapplicabletomouldingorforgingparts. Figure1ShapeformouldingorforgingpartsEN4553:2003(E) 5 Key 13 D view 2 Ntho=G/2 3Marking NOTEThedimensionsgiveninFigure1areapplicabletowholemachiningparts. Figure2Shapeforwholemachiningp
23、arts(alternatemethodofmanufacture)EN4553:2003(E) 6 Table1 Dimensional code a Nominal diameter Wall thickness oftube Thread b A 0,25 CDE 25 , 0 0 + A04 0,711 EN4549A004 B04 6,350 0,889 .437520UNJF3A 12,50 EN4549B004 EN4550104 12,75 A05 0,711 EN4549A005 B05 7,924 0,889 .500020UNJF3A 14,30 EN4549B005 E
24、N4550104 A06 0,711 EN4549A006 B06 9,525 0,889 .562518UNJF3A 14,30 EN4549B006 EN4550106 14,55 A08 0,711 EN4549A008 B08 12,700 0,889 .750016UNJF3A 16,30 EN4549B008 EN4550108 16,55 A10 0,711 EN4549A010 B10 15,875 0,889 .875014UNJF3A 19,05 EN4549B010 EN4550110 19,3 A12 0,711 EN4549A012 B12 19,050 0,889
25、1.062512UNJ3A 20,65 EN4549B012 EN4550112 20,9 A16 0,711 EN4549A016 B16 25,400 0,889 1.312512UNJ3A 20,65 EN4549B016 EN4550116 20,9 Table1 (continued) Dimensional code a Nominal diameter F 25 , 0 0 + G 05 , 0 05 . 0 + - H 0,25 J 0,5 K 0,5 L 0,25 T 0,25 U 0,5 W min. Mass quoted in kg/1000 parts A04 4,1
26、0 B04 6,350 21,8 7,90 6,00 10,0 7,0 21,55 9,25 4,55 11,00 A05 4,85 B05 7,924 22,6 9,50 7,00 11,0 8,0 22,35 10,80 5,30 14,40 A06 5,35 B06 9,525 23,25 11,10 7,00 12,0 9,0 23,00 12,20 5,80 1,7 17,50 A08 6,60 B08 12,700 27,1 14,30 9,00 14,0 11,0 26,85 16,75 7,10 1,8 32,40 A10 7,90 B10 15,875 31,45 17,50
27、 10,00 16,0 13,0 31,20 19,65 8,40 2,1 52,90 A12 9,90 B12 19,050 35,45 20,65 13,00 18,0 14,0 35,20 24,00 10,40 84,00 A16 13,20 B16 25,400 39,65 27,00 15,00 21,0 16,0 39,40 30,35 13,80 2,5 121,00 a Thiscodecorrespondsto: tubewallthickness(A:0,711mm;B:0,889mm) nominaldiametergivenin16thofincheswithintw
28、odigits. b QuotedininchesinaccordancewithISO3161EN4553:2003(E) 7 4Designation EXAMPLE: Descriptionblock Identityblock NIPPLE,ELBOW90 EN4553A10 Numberofthisstandard Dimensionalcode(seeTables1to2) NOTEIfnecessary,thecodeI9005shallbeplacedbetweenthedescriptionblockandtheidentityblock. 5Marking Accordin
29、gtoEN2424,styleAandFigures1and2. 6 Technicalspecification AccordingtoEN4560BS EN 4553:2003 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and a
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