BS EN 144-3-2003 Respiratory protective devices - Gas cylinder valves - Outlet connections for diving gases Nitrox and oxygen《呼吸保护装置 气瓶阀 潜水用Nitrox和氧气气瓶的出口接头》.pdf

《BS EN 144-3-2003 Respiratory protective devices - Gas cylinder valves - Outlet connections for diving gases Nitrox and oxygen《呼吸保护装置 气瓶阀 潜水用Nitrox和氧气气瓶的出口接头》.pdf》由会员分享，可在线阅读，更多相关《BS EN 144-3-2003 Respiratory protective devices - Gas cylinder valves - Outlet connections for diving gases Nitrox and oxygen《呼吸保护装置 气瓶阀 潜水用Nitrox和氧气气瓶的出口接头》.pdf（12页珍藏版）》请在麦多课文档分享上搜索。

1、BRITISH STANDARD BS EN 144-3:2003 Incorporating Corrigendum No. 1 Respiratory protective devices Gas cylinder valves Part 3: Outlet connections for diving gases Nitrox and oxygen The European Standard EN 144-3:2003 has the status of a British Standard ICS 13.340.30 BS EN 144-3:2003 This British Stan

2、dard was published under the authority of the Standards Policy and Strategy Committee on 5 March 2003 BSI 29 February 2004 ISBN 0 580 41367 5 National foreword This British Standard is the official English language version of EN 144-3:2003, including Corrigendum December 2003. The UK participation i

3、n its preparation was entrusted by Technical Committee PH/4, Respiratory protection, to Subcommittee PH/4/7, Underwater breathing apparatus, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The Bri

4、tish Standards which implement international or European publications referred to in this document may 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 On

5、line. This publication does not purport to include all the necessary provisions of a contract. Users are 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 respons

6、ible 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 comprises a front cover, an inside front cover

7、, the EN title page, pages 2 to 8, an inside back cover 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 Comments 14997 Corrigendum No. 1 29 February 2004 Figure 1f amended EUROPEAN STAN

8、DARD NORME EUROPENNE EUROPISCHE NORM EN 144-3 February 2003 ICS 13.340.30 Incorporating corrigendum December 2003 English version Respiratory protective devices - Gas cylinder valves - Part 3: Outlet connections for diving gases Nitrox and oxygen Appareils de protection respiratoire - Robinets de bo

9、uteille gaz - Partie 3: Raccords de sortie pour gaz de plonge Nitrox et oxygne Atemschutzgerte - Gasflaschenventile - Teil 3: Gewindeverbindungen am Ausgangsstutzen fr die Tauchgase Nitrox und Sauerstoff This European Standard was approved by CEN on 21 November 2002. CEN members are bound to comply

10、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 obtained on application to the Management Cen

11、tre 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 Management Centre has the same status as the official v

12、ersions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovak Republic, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTE

13、E FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2003 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 144-3:2003 EEN 144-3:2003 (E) 2 Content

14、s page Foreword3 Introduction .4 1 Scope5 2 Normative references5 3 Thread connection for valve outlet6 3.1 Thread connection for pressures up to 250 bar (nominal pressure 200 bar)6 3.2 Thread connection for pressures between 250 bar and 350 bar (nominal pressure 300 bar).7 4 Marking.7 Annex ZA (inf

15、ormative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives. .8 EN 144-3:2003 (E) 3 Foreword This document (EN 144-3:2003) has been prepared by Technical Committee CEN /TC 79 “Respiratory protective devices“, the secretariat of which is held by

16、DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2003, and conflicting national standards shall be withdrawn at the latest by August 2003. This European Standard has been prepared under

17、 a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this standard. According to the CEN/CENELEC Internal Regul

18、ations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovak Republic, Spa

19、in, Sweden, Switzerland and the United Kingdom. EN 144-3:2003 (E) 4 Introduction In recognition of the very high number of valves using threads of existing national design and the high costs that would be caused by the unnecessary early replacement of these, it is acknowledged that a 5 year transiti

20、onal period will be required to phase in valves using the thread described in this standard. During the ensuing period valves may be supplied with threads to the existing national design or to the standard described herein. EN 144-3:2003 (E) 5 1 Scope This European Standard is applicable to a thread

21、 connection used for the connection between a gas cylinder valve and a pressure reducer for respiratory equipment for diving containing breathable nitrox gas with an oxygen content greater than 22 % or oxygen. This European Standard specifies the dimensions and tolerances for connections which are u

22、sed for respiratory equipment. 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, the publications are listed hereafter. For dated references, su

23、bsequent 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 (including amendments). EN 144-1, Respiratory protective devices Ga

24、s cylinder valves Part 1: Thread connections for insert connector EN 144-3:2003 (E) 6 3 Thread connection for valve outlet 3.1 Thread connection for pressures up to 250 bar (nominal pressure 200 bar) Figure 1 shows the thread connection and its dimensions to be used for cylinders with a maximum fill

25、ing pressure of 250 bar. Dimensions in millimetres Tolerance: 0,1 mm unless specified Figure 1a) Valve outlet connection Figure 1b) Filling connector Figure 1c) Handwheel Figure 1d) Connector Figure 1e) O-ring Figure 1f) Valve outlet Figure 1 Thread connection for pressures up to 250 bar EN 144-3:20

26、03 (E) 7 3.2 Thread connection for pressures between 250 bar and 350 bar (nominal pressure 300 bar) Figure 2 shows the thread connection and its dimensions to be used for cylinders with a maximum filling pressure of 350 bar. Dimensions in millimetres Tolerance: 0,1 mm unless specified Figure 2a) Val

27、ve outlet connection Figure 2b) Filling connector Figure 2c) Handwheel Figure 2d) Connector Figure 2e) O-ring Figure 2f) Valve outlet Figure 2 Thread connection for pressures between 250 bar and 350 bar 4 Marking In addition to the marking required in EN 144-1 the valve outlet connection shall be pe

28、rmanently marked with “200“ for nominal pressure 200 bar connections and with ”300” for nominal pressure 300 bar connections. EN 144-3:2003 (E) 8 Annex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives. This European Standard ha

29、s been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association and supports essential requirements of EU Directive 89/686/EEC, clause 3.10.1. WARNING: Other requirements and other EU Directives may be applicable to the products falling within the scop

30、e of this standard. Compliance with this standard provides one means of conforming with the specific essential requirements of the Directive concerned and associated EFTA regulations. blankBS EN 144-3:2003 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independ

31、ent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they p

32、ossess the latest amendments or editions. It 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 this British Standard would inform the Secretary of the technical committee responsible, the iden

33、tity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 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, internat

34、ional and foreign standards publications should be addressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: ordersbsi-. Standards are also available from the BSI website at http:/www.bsi-. In response to orders for international standards, it is BSI policy to supply

35、 the BSI implementation of those that have been published as 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

36、 electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: +44 (0)20 8996 7111. Fax: +44 (0)20 8996 7048. Email: infobsi-. Subscribing members of BSI are kept up to date with standards developments and receive substan

37、tial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: +44 (0)20 8996 7002. Fax: +44 (0)20 8996 7001. Email: membershipbsi-. Information regarding online access to British Standards via British Standards Online can be found

38、at http:/www.bsi- 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 standardization bodies. Except as permitted under the Copyright,

39、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 preclude the free use, in the course of implementing the standa

40、rd, 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. Details and advice can be obtained from the Copyright & Licensing Manager. Tel: +44 (0)20 8996 7070. Fax: +44 (0)20 8996 7553. Email: copyrightbsi-.