1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Respiratory protective devices - Gas cylinder valvesPart 2: Outlet connectionsBS EN 144-2:2018National forewordThis British Standard is the UK implementation of EN 144-2:2018. It supersedes BS EN 144-2:1999, which is wi
2、thdrawn.The UK participation in its preparation was entrusted to Technical Committee PH/4, Respiratory protection.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract.
3、 Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 93549 7ICS 13.340.30Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authorit
4、y of the Standards Policy and Strategy Committee on 30 April 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 144-2:2018EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 144-2April 2018ICS 13.340.30 Supersedes EN 144-2:1998EUROPEAN COMMITTEE FOR STANDARDIZAT
5、IONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2018 CEN Ref. No. EN 144-2:2018: EAll rights of exploitation in any form and by any means reserved worldwide for CEN national MembersRespiratory protective devices - Gas cy
6、linder valves - Part 2: Outlet connectionsAppareils de protection respiratoire - Robinets de bouteille gaz - Partie 2: Raccordements de sortieAtemschutzgerte - Gasflaschenventile - Teil 2: AusgangsanschlsseThis European Standard was approved by CEN on 19 February 2018.CEN members are bound to comply
7、 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 CEN-CENELEC M
8、anagement 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-CENELEC Management Centre has the same
9、status as the official 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, Ma
10、lta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.English VersionEN 144-2:2018 (E)European foreword 31 Scope . 42 Normative references 43 Terms and definitions . 44 Dimensional and tolerance requirements . 44.1 Gene
11、ral . 44.2 Classification . 44.3 Outlet connections for breathable air of type A1, A2 and A3 . 54.4 Outlet connections for oxygen of type O1 and O2 54.4.1 General 54.4.2 Outlet connection of type O1 . 54.4.3 Outlet connection of type O2 . 64.5 Outlet connections for oxygen/nitrogen mixtures of type
12、M1 and M2 74.5.1 Outlet connection of type M1 74.5.2 Outlet connection of type M2 85 Marking 9Bibliography .102Contents PageBS EN 144-2:2018EN 144-2:2018 (E)European forewordThis document (EN 144-2:2018) has been prepared by Technical Committee CEN/TC 79 “Respiratory protective devices”, the secreta
13、riat of which is held by 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 October 2018, and conflicting national standards shall be withdrawn at the latest by October 2018.Attention is drawn to
14、 the possibility that some of the elements of this document may be the subject of patent rights. CEN not be held responsible for identifying any or all such patent rights.This document supersedes EN 144-2:1998.The following main technical changes have been made compared to EN 144-2:1998:a) Terms and
15、 definition added;b) new classification scheme added in 4.2;c) outlet connections for breathable air changed to be in accordance with EN ISO 12209, including a new type for working pressure of breathable air above 300 bar up to 400 bar;d) Clause 4 “Marking” completely changed and adapted to Part 1;e
16、) A-deviation deleted.This document is one part of a three-part standard concerning connections for gas cylinder valves for respiratory protective devices: Part 1: Inlet connections Part 2: Outlet connections Part 3: Outlet connections for diving gases Nitrox and oxygen.According to the CEN/CENELEC
17、Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Icelan
18、d, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.3BS EN 144-2:2018EN 144-2:2018 (E)1 ScopeThis European Standard specifies the dimensions, tolerances and mark
19、ing requirements of outlet connections for connecting regulators and cylinder valves for respiratory protective devices except those for diving applications.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requireme
20、nts of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.EN 144-1, Respiratory protective devices - Gas cylinder valves - Part 1: Inlet connectionsEN ISO 12209, Gas cylinders -
21、 Outlet connections for gas cylinder valves for compressed breathable air (ISO 12209)3 Terms and definitionsFor the purposes of this document, the terms and definitions given in EN 144-1 apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC El
22、ectropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp4 Dimensional and tolerance requirements4.1 GeneralThe outlet connections specified in this European Standard refer to the cylinder valve outlet and a mating connection. Use of the sp
23、ecified filling connector is essential to ensure the safe use of each connection at its intended working pressure.4.2 ClassificationFor the purpose of this European Standard the outlet connections are classified as following:a) Type A1: working pressure of breathable air up to 232 bar;b) Type A2: wo
24、rking pressure of breathable air above 232 bar up to 300 bar;c) Type A3: working pressure of breathable air above 300 bar up to 400 bar;d) Type O1: working pressure of oxygen up to 232 bar;e) Type O2: working pressure of oxygen above 232 bar up to 300 bar;f) Type M1: working pressure of oxygen/nitro
25、gen mixtures up to 232 bar;g) Type M2: working pressure of oxygen/nitrogen mixtures above 232 bar up to 300 bar.The cylinder valve and gas cylinder shall be tested against the maximum working pressure of the pressure range of the connection (i.e. 232 bar, 300 bar or 400 bar).4 BS EN 144-2:2018EN 144
26、-2:2018 (E)4.3 Outlet connections for breathable air of type A1, A2 and A3The outlet connections of types A1, A2 and A3 shall meet EN ISO 12209, except for the marking requirements.4.4 Outlet connections for oxygen of type O1 and O24.4.1 GeneralAll dimensions are given in millimetres and the toleran
27、ces shall be in accordance with ISO 2768-mk.4.4.2 Outlet connection of type O1The Figures 1a) to 1h) show the outlet connection and connectors and their dimensions of type O1.a) Valve outlet connec-tion fitted with connec-torb) Filling connector (assembly) c) Sealing plugd) Valve outlet connec-tione
28、) O-Ring f) Connector g) Hand wheel5BS EN 144-2:2018EN 144-2:2018 (E)h) Detail X enlargedFigure 1 Outlet connection and connectors of type O14.4.3 Outlet connection of type O2The Figures 2a) to 2h) show the outlet connection and connectors and their dimensions of type O2.a) Valve outlet connection f
29、itted with connectorb) Filling connector (assembly) c) Sealing plugd) Valve outlet con-nectione) O-Ring f) Connector g) Hand wheel6 BS EN 144-2:2018EN 144-2:2018 (E)h) Detail X enlargedFigure 2 Outlet connection and connectors of type O24.5 Outlet connections for oxygen/nitrogen mixtures of type M1
30、and M24.5.1 Outlet connection of type M1The Figures 3a) to 3h) show the outlet connection, connectors and their dimensions of type M1.a) Valve outlet connection fitted with connectorb) Filling connector (assembly) c) Sealing plugd) Valve outlet connection e) O-ring f) Connector g) Hand wheel7BS EN 1
31、44-2:2018EN 144-2:2018 (E)h) Detail X enlargedFigure 3 Outlet connection and connectors of type M14.5.2 Outlet connection of type M2The Figures 4a) to 4h) show the outlet connection, connectors and their dimensions of type M2.a) Valve outlet connection fitted with connectorb) Filling connector (asse
32、mbly) c) Sealing plugd) Valve outlet con-nectione) O-Ring f) Connector g) Hand wheel8 BS EN 144-2:2018EN 144-2:2018 (E)h) Detail X enlargedFigure 4 Outlet connection and connectors of type M25 MarkingCylinder valves meeting the requirements of this document shall be marked with:a) the number of this
33、 document, i.e. EN 144-2;NOTE Where the cylinder valve also meets the requirements of EN 144-1 a combined marking, i.e. EN 144-1/-2 can be used.b) means of identification of the manufacturer;c) identification of date of manufacture (at least the year); andd) identification of the thread type followe
34、d by the maximum working pressure the valve is intended to be used, e.g. A1/200 bar. This marking shall be given on the outlet connection or on the valve body.9BS EN 144-2:2018EN 144-2:2018 (E)Bibliography1 EN ISO 10286, Gas cylinders - Terminology (ISO 10286)10 BS EN 144-2:2018This page deliberatel
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