1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 4025:2010Aerospace series Pipecoupling 830 in titanium alloy Elbows 45, bulkheadBS EN 4025:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementat
2、ion of EN 4025:2010. Itsupersedes BS EN 4025:2001 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/69, Aerospace hydraulic systems, fluids andcomponents.A list of organizations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.
3、This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 66850 0ICS 49.080Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under
4、the authority of theStandards Policy and Strategy Committee on 30 November 2010.Amendments issued since publicationDate Text affectedBS EN 4025:2010EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4025 October 2010 ICS 49.080 Supersedes EN 4025:2001English Version Aerospace series - Pipe couplin
5、g 830 in titanium alloy - Elbows 45, bulkhead Srie arospatiale - Systme de raccordement 830 en alliage de titane - Raccords couds 45 pour traverse de cloison Luft- und Raumfahrt - Rohrverschraubung 830 aus Titanlegierung - Winkel-Schottverschraubungen 45 This European Standard was approved by CEN on
6、 2 July 2010. CEN members are bound to comply with the CEN/CENELEC 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
7、 obtained on application to the CEN Management Centre or 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 M
8、anagement Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Net
9、herlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitatio
10、n in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4025:2010: EBS EN 4025:2010EN 4025:2010 (E) 2 Foreword This document (EN 4025:2010) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries an
11、d 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 shall be given the status of a national standa
12、rd, either by publication of an identical text or by endorsement, at the latest by April 2011, and conflicting national standards shall be withdrawn at the latest by April 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN
13、and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 4025:2001. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria
14、, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS
15、EN 4025:2010EN 4025:2010 (E) 3 Contents Page Foreword . 21 Scope 42 Normative references 43 Required characteristics 44 Designation 65 Marking . 66 Technical specification . 77 Installation details . 7BS EN 4025:2010EN 4025:2010 (E) 4 1 Scope This standard specifies the characteristics of elbows 45,
16、 bulkhead, for pipe couplings 830, in titanium alloy, for aerospace applications. Nominal pressure: up to 28 000 kPa. Temperature range: 55 C to 135 C. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edi
17、tion cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2424:2008, Aerospace series Marking of aerospace products EN 2491, Aerospace series Molybdenum disulphide dry lubricants Coating methods EN 3267, Aerospace series Washers,
18、 bulkhead, in titanium alloy EN 3274:2010, Aerospace series Pipe coupling 830 Thread end Geometric configuration EN 3275:2002, Aerospace series Pipe coupling 830 up to 28 000 kPa Dynamic beam seal Metric series Technical specification EN 3311, Aerospace series Titanium alloy TI-P64001 (Ti-6Al-4V) An
19、nealed Bar for machining D 110 mmEN 3312, Aerospace series Titanium alloy TI-P64001 Grade 2 Annealed Forgings De 150 mm 1)EN 3314, Aerospace series Titanium alloy TI-P64001 Solution treated and aged Bar for machining D 75 mm 1)EN 3315, Aerospace series Titanium alloy TI-P64001 Solution treated and a
20、ged Forgings De 75 mm 1)ISO 5855-3, Aerospace MJ threads Part 3: Limit dimensions for fittings for fluid systems 3 Required characteristics 3.1 Configuration Dimensions Mass According to Figure 1 and Table 1. The values apply before lubricating. Dimensions not specified are at the manufacturers opti
21、on provided that the qualification and acceptance requirements of EN 3275:2002, type II are met. 3.2 Surface roughness According to Figure 1, unless otherwise specified in the design documentation. 1) Published as ASD-STAN Prestandard at the date of publication of this standard by Aerospace and Defe
22、nce Industries Association of Europe-Standardization (ASD-STAN) (www.asd-stan.org). BS EN 4025:2010EN 4025:2010 (E) 5 3.3 Materials According to EN 3311 or EN 3314, EN 3312 or EN 3315. 3.4 Surface treatment Lubrication: according to EN 2491, on threads and sealing faces. Prior to application of the
23、lubricant, the surface shall be abrasive blasted using non-metallic grit. Film thickness 0,005 mm to 0,013 mm. 3.5 Internal surface finishing Finishing shall give a radius R of 0,3 mm to 1,0 mm and a surface roughness of 0,8 m. Hand deburring is not permitted. Dimensions in millimetres aArea for mar
24、king bAccording to EN 3274:2010, form C cAccording to EN 3274:2010, form D dThread eAcross flats s f Radius of the complete internal junction shall be between R 0,3 to 1,0 Figure 1 BS EN 4025:2010EN 4025:2010 (E) 6 Table 1 Dimensions in millimetres Codea Threadb e c l1c L2 c L3s d Mass g/piece4g6g 0
25、,2 0,2 0,2 h13 max. 05 MJ10 1 0,9 16,3 32,3 16,8 8 10,1 06 MJ12 1,25 1,0 17,8 37,0 19,0 9 16,1 08 MJ14 1,5 1,4 20,8 40,8 19,8 11 22,9 10 MJ16 1,5 1,8 21,8 40,8 19,8 13 29,6 12 MJ18 1,5 2,2 23,8 42,8 19,8 15 37,0 14 MJ20 1,5 2,4 23,8 42,8 19,8 16 58,7 16 MJ22 1,5 2,8 25,8 43,8 20,8 18 64,6 18 MJ24 1,
26、5 3,2 27,8 44,8 21,8 21 71,7 20 MJ27 1,5 4,7 27,8 45,8 22,8 24 89,2 22 MJ30 1,5 4,3 30,8 46,8 23,8 27 104,3 25 MJ33 1,5 4,6 32,8 48,8 25,8 30 139,1 28 MJ36 1,5 5,3 34,8 50,8 26,3 34 176,7 32 MJ39 1,5 5,0 36,4 53,8 29,5 36 212,6 aCorresponds to the pipe nominal outside diameter. bAccording to ISO 585
27、5-3. cDrill depth dimension = l1+ e or l2+ e. dAcross flats. 4 Designation EXAMPLE Description block ELBOW 45, BULKHEAD Identity block EN4025-05 Number of this standard Code (see Table 1) NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. 5 Markin
28、g According to EN 2424:2008, style A and Figure 1. BS EN 4025:2010EN 4025:2010 (E) 7 6 Technical specification According to EN 3275:2002, type II. 7 Installation details See Figure 2. Dimensions in millimetres Key 1 Bulkhead 2 Washer according to EN 3267 aGrip length bThread cThread + 0,5 Figure 2 T
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