1、 STDVCEN EN 144-2-ENGL 1778 3404589 0382320 b4 H! RATIFIED EUROPEAN TEXT EN144-2: 1998 European Standards only exist formally as national transpositions (.e. a BS EN for the UK) of a commonly agreed “ratified“ text. This document is a ratified text which will shortly be published as a BS EN. It is b
2、eing made available in advance of its formal publication to give interested parties early access to the technical information which the BS EN will contain. When the BS EN is formally published it will be supplied to you automatically, without any additional charge. Purchasers of this ratified text s
3、hould be aware of the following limitations when using the document. The BS EN may contain additional information in the national foreword or national annex, Full rights conferred by compliance with the standard may only be granted by reference to the formal national transposition of the text as a B
4、S EN. This ratified text was approved by CENKENELEC in its three official languages on the date given below. Under CENCENELEC rules, BSI is obliged to publish its national transposition within six months of this date. This ratified text was approved on 1998-10-11 NO COPYING WITHOUT BSI PERMISSION EX
5、CEPT AS PERMITTED BY COPYRIGHT LAW STD-CEN EN 144-2-ENGL 3778 W 3404587 O382323 585 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 144-2 November 1998 ICs 13.340.30 Descriptors: respiratory protective equipment, gas cylinders, cocks, threaded fittings, screw threads, dimensions, dimensional to
6、lerances, marking English version Respiratory protective devices - Gas cylinder valves - Part 2: Outlet connections Appareils de protection respiratoire - Robinets de bouteille gaz - Partie 2: Raccordements de sortie Atemcchutzger6te - Gasflaschenventile - Teil 2: Gewindeverbindungen am Ausgangsstut
7、zen This European Standard was approved by CEN on 11 October 1998. CEN members are bound to comply with the CENKENELEC Intemal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Upto-date lists and bibliographical re
8、ferences concerning such national standards may be obtained on application to the Central Secretariat 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
9、 into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republlc, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portuga
10、l, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMTEE FOR STANDARDIZATION COMITE EUROPBEN DE NORMALISATION EUROPISCHES KOMITEE FUR NORMUNG Central Secretariat: rue de Stassart, 36 6-1050 Brussels O 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for C
11、EN national Members. Ref. No. EN 144-2:1998 E ISTD-CEN EN 144-2-EFJGL 1778 3404587 0382322 411 H Page 2 EN 144-2:1998 Foreword This European Standard has been prepared by Technical Committee CEN/TC 79 “Respiratory protective devices“, the secretariat of which is held by DIN. This European Standard s
12、hall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 1999 and conflicting national standards shall be withdrawn at the latest by May 1999. This European Standard has been prepared under a mandate given to CEN by the Europ
13、ean 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 CENKENELEC Internal Regulations, the national standards organi
14、zations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. STD.CEN EN 344-2-ENGL
15、3998 lil 3404587 0382323 35A U Page 3 EN 144-21998 Introduction In recognition of the very high number of valves throughout Europe 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 15 year transi
16、tional 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. 1 scope This European Standard is applicable to a thread connection used f
17、or the connection between a gas cylinder valve and a pressure reducer for respiratory protective devices except those for diving containing breathable air, oxygen or oxygednitrogen. It specifies the dimensions and tolerances for connections which are used for respiratory protective devices. 2 Normat
18、ive references This European Standard incorporates by dated or undated re,zrence, 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, subsequent amendments to or revisions of a
19、ny 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. EN 144-1 :1991 Respiratory protective devices - Gas cylinder valves - Part 1: Thread connection for insert
20、 connector STD*CEN EN L44-2-ENGL 1998 0 3404587 0382324 294 0 Page 4 EN 144-21998 3 Thread connection for valve outlet for breathable air, oxygen and oxygednitrogen 3.1 Thread connection for breathable air 3.1.1 Thread connection for breathable air up to 250 bar (nominal pressure 200 bar) The figure
21、s 1 a) to 1 g) show the thread connection and its dimensions to be used for cylinders with a maximum filling pressure of 250 bar. Dimensions in millimetres w figure ia): Vaive outlet connection Figure W: Charging Connectc Figure le): O-Ring I Il3 162.5 Figure IC): Seaiin, plug .-.-.- -.-. Figure lg)
22、: Hand wheel Figure Id): Valve outlet Figure 10: Connector STD.CEN EN Lq4-2-ENGL 1998 = 3404589 0382325 120 Page 5 EN 144-2:1998 3.1.2 Thread connection for breathable air 250 bar to 350 bar (nominal pressure 300 bar) The figures 2a) to 2 h) show the thread connection and its dimensions to be used f
23、or cylinders with a maximum filling pressure of 350 bar. Dimensions in millimetres O0 -4 4.3 I I _II, F 21 min. 1 Figure 2a): Valve outlet connection connector for munipie cylinder Figure 2b):Fiiling connector and equipment Figure 2c): Scaling plug A Figure 2d): Valve outlet Figure 2e): O-Ring y! 1.
24、9 o Figure 2f): Connector for single cylinder equipment A Figure 2g): Hand wheel 1 110.5r0.1 Figure 2h): View A STD-CEN EN 144-2-ENGL 1998 H 3404589 OL8232b Ob7 m Page 6 EN 1 44-2 : 1 998 3.2 Thread connection for oxygen 3.2.1 Thread connection for oxygen up to 250 bar (nominal pressure 200 bar) The
25、 figures 3a) to 3 h) show the thread connection and its dimensions to be used for cylinders with a maximum filling pressure of 250 bar. Dimensions in millimetres Figure 3a) Vaive outlet connection Figure 3b): Connector Figure 3c): Sealing plug 5 Figure a): O-Ring I 22.5 1 1 Figure 3f): Connector Fig
26、ure 3d): Valve outlet YA 1 26.5 I Figure 3g): Hand wheel Figure 3h): Detail X enlarged STD.CEN EN 344-2-ENGL 1998 m 3404589 0382327 TT3 I Page 7 EN 144-2: 1 998 3.2.2 Thread connection for oxygen 250 bar to 350 bar (nominal pressure 300 bar) The figures 4a) to 4h) show the thread connection and its
27、dimensions to be used for cylinders with a maximum filling pressure of 350 bar. Dimensions in millimetres Figure 4a): Valve outlet connection -0.2 5 O I I - I 40): O-Ring +j Figure 4b): Connector Figure 4c): Sealing plug c a c 0 1L-0.21 IT I Figure 4d): Valve outlet Figure 49: Connector Figure 4g):
28、Hand wheel c x 44 I 11.5-0.1 Figure 4h): Detail X eniarged Page 8 EN 144-21998 3.3 Thread connection for oxygenhitrogen 3.3.1 Thread connection for oxygenhitrogen up to 250 bar (nominal pressure 200 bar) The figures sa) to 5h) show the thread connection and its dimensions to be used for cylinders wi
29、th a maximum filling pressure of 250 bar. Figure Sa): Valve outlet connection Fgure Sb): Connector Figure 1 22.5 J Figure 5d): Valve outlet figure 59: Connector Dimensions in Figure 5c): Sealing plug L O0 . *. millimetres 4 Figure 56): Hand wheel Figure 5h): Detail X enlarged STD.CEN EN 144-2-ENGL 1
30、778 3404589 0182327 87b a Page 9 EN 144-2: 1998 3.3.2 Thread connection for oxygen/nitrogen 250 bar to 350 bar (nominal pressure 300 bar) The figures 6a) to 6h) show the thread connection and its dimensions to be used for cylinders with a maximum filling pressure of 350 bar. Dimensions in miliimetre
31、s w Figure 6a): Valve outlet connection c Figure 6e): O-Ring Figure 6b): Connector Figure 6c): Sealing plug 6-0.21 I 71 Figure 69: Connector x Figure 6d): Vaive outlet 1 5-0.1 Figure 69): Hand wheel Figure 6h): Detail X enlarged STD-CEN EN 144-2-ENGL 1798 W 3404587 018Z310 598 Page 10 EN 144-2: 1 99
32、8 4 Marking In addition to the marking required in EN 144-1:1991 the valve outlet connection shall be permanently marked with “200 for nominal pressure 200 bar connections and with ,300 for nominal pressure 300 bar connections. STD-CEN EN LLi4-Z-ENGL 1798 M 3404587 018233L 424 aiii Page 11 EN 144-2:
33、1998 Annex A (informative) A-Deviations National deviation due to regulations, the alteration of which is for the time being outside the competence of the CENKENELEC member. This European Standard falls under directive 89/686/EEC. NOTE (from CENKENELEC IR Part 2, 3.1.9): Where standards fall under E
34、U Directives, it is the view of the Commission of the European Communities (OJ No G 59, 9.3.1982) that the effect of the decision of the Court of Justice in case 81W9 CremoniniNrankovich (European Court Reports 1980, p. 3583) is that compliance with A-deviations is no longer mandatory and that the f
35、ree movement of products complying with such a standard should not be restricted except under the safeguard procedure provided for in the relevant Directive. A-deviations in an ERA country are valid instead of the relevant provisions of the European Standard in that country until they have been remo
36、ved. Verordnung des Bundesministers fr wirtschaftliche Angelegenheiten ber sicherheitstechnische Bestimmungen fr Versandbehlter (Versandbehltewerordnung 1996). Bundesgesetzblatt Nr. 368/1996, Anlage A.4.8 Ergnzend zu den Vorschriften des ADR/RID bezglich Ausrstung von Flaschen gelten folgende Bestim
37、mungen: 1. Flaschen sind mit Absperrventilen gem -Norm M 7390-1 bis -6 auszursten. II STD-CEN EN 144-2-ENGL 1778 = 3404587 0382332 3b0 6 1 .I -2.1 1 .I -2.2 1.2.1 1.2.1.2 1.3.2 2.1 2.9 2.10 2.12 3.10.1 Page 12 EN 144-2:1998 3 3 3 3 3 3 3 3 4 394 Annex ZA (informative) Clauses of this European Standa
38、rd addressing essential requirements or other provisions of EU Directives. This European Standard has 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. WARNING: Other requireme
39、nts and other EU Directives within the scope of this standard. be applicable to the products falling The following clauses of this standard are likely to support requirements of Directive 89/686/EEC, Annex II: EU-Directive 89/686/EEC, Annex li: Clauses 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.
