1、BRITISH STANDARD AEROSPACE SERIES BS EN 3790:2001 Pipe coupling 830 Protective caps with internal threads The European Standard EN 3790:2001 has the status of a British Standard ICS 49.025.01 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 3790:2001 This British Standard,
2、 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 and comes into effect on 17 October 2001 BSI 17 October 2001 ISBN 0 580 37177 8 National foreword This British Standard
3、is the official English language version of EN 3790:2001. The UK participation in its preparation was entrusted to Technical Committee ACE/69, Aerospace Hydraulic Systems, Fluids and Components, which has the responsibility to: A list of organizations represented on this committee can be obtained on
4、 request to its secretary. Cross-references The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards E
5、lectronic 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 obligations. aid enquirers to und
6、erstand the text; present to the responsible international/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 This document compri
7、ses a front cover, an inside front cover, the EN title page, pages 2 to 5 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 CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN3790 S
8、eptember2001 ICS49.080 Englishversion AerospaceseriesPipecoupling830Protectivecapswith internalthreads ThisEuropeanStandardwasapprovedbyCENon29December2000. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalst
9、andardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsi
10、bilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,Switzer
11、landandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN3790:2001EEN3790:2001(E) 2 Foreword
12、ThisEuropeanStandardhasbeenpreparedbytheEuropeanAssociationofAerospaceManufacturers (AECMA). AfterinquiriesandvotescarriedoutinaccordancewiththerulesofthisAssociation,thisStandardhas receivedtheapprovaloftheNationalAssociationsandtheOfficialServicesofthemembercountriesof AECMA,priortoitspresentation
13、toCEN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidentical textorbyendorsement,atthelatestbyMarch2002,andconflictingnationalstandardsshallbewithdrawnat thelatestbyMarch2002. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthef
14、ollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark, Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal, Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN3790:2001(E) 3 1S c o p e Thisstandardspecifiesthecharacteristics
15、forplasticcapsforpipecouplings8 30usedtoprotectthe couplingsduringtransportation,storageandremovalofunitsinsystem,foraerospaceapplications.Thecaps incorporateaninternalthreadforscrewingontothethreadedportionofapipecoupling. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedrefere
16、nceprovisionsfromotherpublications. Thesenormativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelisted hereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplyto thisEuropeanStandardonlywhenincorporatedinitbyamendmentorrevision.Forundatedref
17、erences,the latesteditionofthepublicationreferredtoapplies(includingamendments). ISO27681 GeneraltolerancesPart1:Tolerancesforlinearandangulardimensionswithoutindividual toleranceindications ISO58553 AerospaceseriesMJthreadsPart3:Limitdimensionsforfittingsforfluidsystems EN2424 AerospaceseriesMarkin
18、gofaerospaceproducts 3 Requiredcharacteristics 3.1 ConfigurationDimensions Accordingtofigure1andtable1 Thedimensionsnotspecifiedareatthemanufacturersoption 3.2 Characteristics Thecapsshallbewithoutanyvisiblecontamination.Internalsurfacesandthreadsshallbefreefromburrs. Thecapscanbeusedfortransportati
19、on/storageofoilfilledhydrauliccomponents,at0,1MPaoverpressure for8hwithoutleakage.EN3790:2001(E) 4 3.3 Material Polyethylene Colour:white Dimensionsinmillimetres a Thread b Areaformarking NOTEGeneraltolerancesseeISO27681 Figure1EN3790:2001(E) 5 Table1 Dimensionsinmillimetres Code a Thread b 4H5H d 1
20、 d 2 d 3 h l 1 l 2 05 06 08 MJ10 1,00 MJ12 1,25 MJ14 1,50 15 17 19 06 07 09 12 14 16 4 4 4 08,5 08,5 10,0 7,0 7,0 8,5 10 12 14 16 18 MJ16 1,50 MJ18 1,50 MJ20 1,50 MJ22 1,50 MJ24 1,50 21 23 25 27 29 11 13 14 16 18 18 20 22 24 26 4 5 5 5 5 10,0 10,0 10,0 10,0 10,0 8,5 8,5 8,5 8,5 8,5 20 22 25 28 MJ27
21、1,50 MJ30 1,50 MJ33 1,50 MJ36 1,50 32 35 38 41 21 24 26 28 29 32 35 38 6 6 6 6 10,5 10,5 10,5 10,5 9,0 9,0 9,0 9,0 32 MJ39 1,50 44 31 41 6 10,5 9,0 a Correspondstothepipenominaloutsidediameter b AccordingtoISO58553 4 Designation EXAMPLE: Descriptionblock Identityblock PROTECTIVECAP EN379008 Numberof
22、thisstandard Code(seetable1) NOTE:Ifnecessary,thecode I9005shallbeplacedbetweenthedescriptionblockandtheidentityblock. 5 Marking AccordingtoEN2424,styleFpluscodeoftable1andfigure1BS EN 3790:2001 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent nationa
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