1、BSI Standards PublicationBS EN 3268:2014Aerospace series Pipecoupling 830 in titanium alloy Pressure plugsBS EN 3268:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 3268:2014. Itsupersedes BS EN 3268:2001 which is withdrawn.The UK participation in its prepa
2、ration was entrusted to TechnicalCommittee ACE/69, Aerospace hydraulic systems, fluids andcomponents.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are resp
3、onsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 67365 8ICS 49.080Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Po
4、licy and Strategy Committee on 31 October 2014.Amendments issued since publicationDate Text affectedBS EN 3268:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3268 October 2014 ICS 49.080 Supersedes EN 3268:2001English Version Aerospace series - Pipe coupling 830 in titanium alloy - Pressur
5、e plugs Srie arospatiale - Systme de raccordement 830 en alliage de titane - Obturateurs de tuyauterie Luft- und Raumfahrt - Rohrverschraubung 830 aus Titanlegierung - Blindverschraubungen This European Standard was approved by CEN on 4 January 2014. CEN members are bound to comply with the CEN/CENE
6、LEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre o
7、r to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the off
8、icial versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands
9、, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of
10、 exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3268:2014 EBS EN 3268:2014EN 3268:2014 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Required characteristics .4 3.1 Configuration Dimensions Mass 4 3.2 Surface roughness 4 3.3 M
11、aterials .4 3.4 Surface treatment 4 4 Designation 6 5 Marking .7 6 Technical specification .7 Annex A (informative) Standard evolution form 8 BS EN 3268:2014EN 3268:2014 (E) 3 Foreword This document (EN 3268:2014) has been prepared by the Aerospace and Defence Industries Association of Europe - Stan
12、dardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shal
13、l be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2015, and conflicting national standards shall be withdrawn at the latest by April 2015. Attention is drawn to the possibility that some of the elements of this document
14、 may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 3268:2001. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to
15、 implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Ro
16、mania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 3268:2014EN 3268:2014 (E) 4 1 Scope This European Standard specifies the characteristics of pressure plugs for pipe couplings 830, in titanium alloy, for aerospace applications. 2 Normative references The fol
17、lowing documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2424, Aeros
18、pace series - Marking of aerospace products EN 2491, Aerospace series - Molybdenum disulphide dry lubricants - Coating methods EN 3274, Aerospace series - Pipe coupling 830 - Thread end - Geometric configuration EN 3275, Aerospace series - Pipe coupling 830 up to 28 000 kPa - Dynamic beam seal - Met
19、ric series - Technical specification EN 3311, Aerospace series - Titanium alloy TI-P64001 (Ti-6Al-4V) - Annealed - Bar for machining - D 110 mm EN 3314, Aerospace series - Titanium alloy TI-P64001 - Solution treated and aged - Bar for machining - D 75 mm 1)ISO 5855-3, Aerospace - MJ threads - Part 3
20、: Limit dimensions for fittings for fluid systems MIL-PRF-24635, Performance specification - Coating systems, weather resistant, exterior use 2)FED-STD-595, Federal Standard: colors used in government procurement (Color FS 11136) 2)3 Required characteristics 3.1 Configuration Dimensions Mass Accordi
21、ng to Figure 1 and Table 1. Dimensions applied before lubricating. 3.2 Surface roughness According to Figure 1. 3.3 Materials According to EN 3311 or EN 3314. 3.4 Surface treatment Lubrication: according to EN 2491 on thread and sealing face, film thickness: 0.005 mm to 0.013mm. 1) Published as ASD-
22、STAN Prestandard at the date of publication of this standard (www.asd-stan.org). 2) Published by: DoD National (US) Mil. Department of Defense (http:/www.defenselink.mil/). BS EN 3268:2014EN 3268:2014 (E) 5 Optional, red coating FED-STD-595/11136 in accordance with MIL-PRF-24635 (see Figure 1 and Ta
23、ble 2). Prior to application of lubricant or coating, the surface shall be abrasive blasted using non-metallic grit. Dimensions in millimetres Key a Area for marking b Two holes d1 (optional, see Table 1) c According to EN 3274, form B d Thread e 0,3 to 0,6 applicable to both faces f From either fac
24、e g Red coating zone (optional, see Table 2) Figure 1 BS EN 3268:2014EN 3268:2014 (E) 6 Table 1 Dimensions in millimetres Code a Thread b d1l1l2s v1v2Mass g/piece 4g6g H13 0,2 0,4 h13 0,2 min. max. 05 MJ101 1 11,3 5,6 11 4,21 2,1 1,96 06 MJ121,25 1,5 13,5 7,1 13 4,94 2,6 3,04 08 MJ141,5 15,8 8,4 16
25、6,54 3,1 5,92 10 MJ161,5 16,3 7,8 17 6,9 3,6 6,80 12 MJ181,5 16,8 7,3 19 7,97 3,85 10,15 14 MJ201,5 17,3 7 22 9,68 13,57 16 MJ221,5 17,8 6,5 24 10,51 17,75 18 MJ241,5 5,9 27 12,11 23,00 20 MJ271,5 18,2 5,1 30 13,77 31,01 22 MJ301,5 18,3 4,3 32 14,76 37,70 25 MJ331,5 3,9 34 15,66 43,35 28 MJ361,5 18,
26、8 2,9 41 19,56 4,6 66,70 32 MJ391,5 2,1 71,81 aCorresponds to the pipe nominal outside diameter. bAccording to ISO 5855-3. 4 Designation EXAMPLE NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. BS EN 3268:2014EN 3268:2014 (E) 7 Table 2 Option Co
27、de Lockwire hole H No hole (hyphen) Red coating R No red coating No code 5 Marking According to EN 2424, style A and Figure 1. WARNING Items marked with red colour reference are NON-FLIGHTWORTHY COMPONENTS and must be REMOVED BEFORE FLIGHT. 6 Technical specification According to EN 3275. BS EN 3268:
28、2014EN 3268:2014 (E) 8 Annex A (informative) Standard evolution form MODIFICATION REASON AND VALIDATION Before: Federal Standard 595B After: Federal Standard 595 For the “Red“ Colour code the standard number for the Federal Standard 595 B was changed to 595. Typing error: MJ18 1,8 must read MJ18 1,5
29、 this is a standard ISO thread The Letter “B“ indicates the published version. We do not quote the “issues“ of ref standards. The colour code 11136 was added. Additional information in the Standard: Optional code “R“ be careful this component shall not be used in flight condition. Was added on the s
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