EN 4021-2001 en Aerospace Series - Pipe Coupling 8 Degrees 30 in Titanium Alloy - Elbows 90 Degree Bulkhead《航空航天系列 钛合金管连接件830- 闷头90弯头》.pdf

1、BRITISH STANDARD AEROSPACE SERIES Pipe coupling 8“ 30 in titanium alloy - Elbows go“, bulkhead The European Standard EN 4021:2001 has the status of a British Standard ICs 49.026.30; 49.036 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 4021:2001 BS EN 4021:2001 Amd. No.

2、 Date National foreword Comments This British Standard is the official English language version of EN 4021:2001. The UK participation in its preparation was entrusted to Technical Committee ACE/69, Aerospace Hydraulic Systems, Fluids and Components which has the responsibility to: - - aid enquirers

3、to understand the text; present to the responsible 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. - A list of organizations represented on this

4、 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 Standards Catalogue under the section entitled “International Standards Correspondence Index”, or

5、 by using the “Find facility of the BSI Standards Electronic 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 im

6、munity from legal obligations. This British Standard, 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 on 13 November 2001 O BSI 13 November 2001 Summary of pages This do

7、cument comprises a front cover, an inside front cover, the EN title page, pages 2 to 6, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. ISBN O 580 37171 9 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4021 O

8、ctober 2001 ICs 49.080 English version Aerospace series - Pipe coupling 830 in titanium alloy - Elbows go, bulkhead Srie arospatiale - Systme de raccordement 8“30 en alliage de titane - Raccords couds a 90“ pour traverse de cloison Luft- und Raumfahrt - Rohrverschraubung V30 aus Titanlegierung - Win

9、kel-Schottverschraubungen 90“ This European Standard was approved by CEN on 29 December 2000. CEN members are bound to comply with the CENICENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-dat

10、e lists and bibliographical references concerning such national standards may be obtained on application to the 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 re

11、sponsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Ne

12、therlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FUR NORMUNG COMITE EUROPEEN DE NORMALISATION Management Centre: rue de Stassart, 36 8-1050 Brussels O 2001 CEN All rights of exploitation in any form and by any mean

13、s reserved worldwide for CEN national Members. Ref. No. EN 4021:2001 E EN 4021:2001 (E) Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After inquiries and votes carried out in accordance with the rules of this Association, this Stand

14、ard has received the approval of the National Associations and the Official Services of the member countries of AECMA, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the lates

15、t by April 2002, and conflicting national standards shall be withdrawn at the latest by April 2002. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denma

16、rk, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. 2 EN 4021:2001 (E) 1 Scope This standard specifies the Characteristics of elbows go“, bulkhead, for pipe couplings 8“30, in titanium alloy, for

17、 aerospace applications. Nominal pressure: up to 28 O00 kPa Temperature range: - 55 “C to 135 “C 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the appropriate places in the text and

18、 the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies (i

19、ncluding amendments). IS0 5855-3, Aerospace - MJ threads - Part 3: Limit dimensions for fittings for fluid systems. EN 2424, Aerospace series - Marking of aerospace products. EN 2491, Aerospace series - Molybdenum disulphide dry lubricants - Coating methods. EN 3267, Aerospace series - Washers, bulk

20、head, in titanium alloy. EN 3274, Aerospace series - Pipe coupling 830 - Thread ends - Geometric configuration. EN 3275, Aerospace series - Pipe coupling 830 up to 28 O00 kPa - Dynamic beam seal - Metric series - Technical specification. EN 331 1, Aerospace series - Titanium alloy TI-P64001 - Anneal

21、ed - Bar for machining - D I 150 mm.) EN 3312, Aerospace series - Titanium alloy TI-P64001 - Grade 2 - Annealed - Forgings - De I 150 mm.) EN 3314, Aerospace series - Titanium alloy TI-P64001 - Solution treated and aged - Bar for machining - D I 75 mrn.) EN 331 5, Aerospace series - Titanium alloy T

22、I-P64001 - Solution treated and aged - Forgings - D, I 75 mm.) 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 option provided that the qualification and accepta

23、nce require- ments of EN 3275, type I1 are met. ) Published as AECMA Prestandard at the date of publication of this standard 3 EN 4021:2001 (E) 3.2 Surface roughness According to figure 1, unless otherwise specified in the design documentation. 3.3 Materials According to EN 331 1 or EN 3314, EN 3312

24、 or EN 3315. 3.4 Surface treatment Lubrication: according to EN 2491, on threads and sealing faces. Prior to application of the 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

25、R of 0,3 mm to 1,0 mm and a surface roughness of 0,8 pm. Hand deburring is not permitted. Dimensions in millimetres -0.3 X a Area for marking According to EN 3274, form C According to EN 3274, form D Thread e Across flats s R 0,3 to 1,0 Figure 1 4 EN 4021:2001 (E) According to IS0 5855-3. Drill dept

26、h dimension. Across flats 4 Designation EXAMPLE . . . . Description block Identity block I EN402 1-05 ELBOW go, BULKHEAD I 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 Marking According to EN 2424

27、, style A and figure 1. 6 Technical specification According to EN 3275, type II. 5 EN 4021:2001 (E) 7 Installation details See figure 2. Dimensions in millimetres 2 Key 1 Bulkhead 2 Washer according to EN 3267 a Grip length Thread Thread + 0.5 U I Figure 2 6 BS EN 4021:2001 BSI 389 Chiswick High Roa

28、d London w4 4AL -=ditionS. t is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using ihis British Standard would inform the Secretary of the technical committee responsible, the identity of which ca

29、n be found on the inside front cover. Tel: O20 8996 9000. Fax: 020 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards

30、publications should be addressed to Customer Services. Tel: O20 8996 9001. Fax: 020 8996 7001. Standards are also available from the BSI website at http:/www.bsi-. n response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as

31、 British Standards, unless otherwise requested. information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which gi

32、ve details on all its products and services. Contact the Information Centre. Tel: O20 8996 7111. Fax: O20 8996 7048. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefit

33、s contact Membership Administration. Tel: 020 8996 7002. Fax: O20 8996 7001. Further information about BSI is available on the BSI website at http:/www.bsi-. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standa

34、rdization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means - electronic, photocopying, recording or otherwise - without prior written permission from BSI. This does not

35、preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: O20 8996 7070.