1、BS EN ISO2503:2009ICS 23.060.40; 25.160.30NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDGas welding equipment P ressure regulatorsand pressureregulators with flow-metering devices forgas cylinders used inwelding, cutting andallied processes up to300 bar (30 MP
2、a)BS EN ISO 2503:2009 +A1:2015BS EN ISO 2503:2009+A1:2015ISBN 978 0 580 83366 3Amendments/corrigenda issued since publicationDate Comments31 May 2015 Implementation of ISO amendment 1:2015 withThis British Standard waspublished under the authorityof the Standards Policy andStrategy Committee on 30 S
3、eptember 2009 The British Standards Institution 2015.Published by BSI StandardsLimited 2015National forewordThis British Standard is the UK implementation of EN ISO 2503:2009+A1:2015.It is identical to ISO 2503:2009, incorporating amendment 1:2015. It supersedesBS EN ISO 2503:2009 which is withdrawn
4、.The start and finish of text introduced or altered by amendment is indicatedin the text by tags. Tags indicating changes to ISO text carry the number of the ISO amendment. For example, text altered by ISO amendment 1 isindicated by .The UK participation in its preparation was entrusted to Technical
5、 CommitteeWEE/18, Gas welding and cutting appliances.A list of organizations represented on this committee can be obtained on requestto its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application.Compliance w
6、ith a British Standard cannot confer immunity fromlegal obligations.CEN endorsement A1:2015EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 2503July 2009ICS 25.160.30 Supersedes EN 13918:2003, EN ISO 2503:1998 English VersionGas welding equipment - Pressure regulators and pressureregulators wit
7、h flow-metering devices for gas cylinders used inwelding, cutting and allied processes up to 300 bar (30 MPa)(ISO 2503:2009)Matriel de soudage aux gaz - Dtendeurs et dtendeursdbitmtres intgrs pour bouteilles de gaz utiliss pour lesoudage, le coupage et les techniques connexes jusqu300 bar (30 MPa) (
8、ISO 2503:2009)Gasschweigerte - Druckregler und Druckregler mitDurchflussmessgerten fr Gasflaschen fr Schweien,Schneiden und verwandte Prozesse bis 300 bar (30 MPa)(ISO 2503:2009)This European Standard was approved by CEN on 17 June 2009.CEN members are bound to comply with the CEN/CENELEC Internal R
9、egulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This
10、 European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the
11、national standards bodies of Austria, Belgium, Bulgaria, 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 an
12、d United Kingdom.EUROPEAN COMMITTEE FORSTANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FRNORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 2503:2009:
13、 EEN ISO 2503:2009+A1April 2015BS EN ISO 2503:2009EN ISO 2503:2009(E)3 Foreword This document (EN ISO 2503:2009) has been prepared by Technical Committee ISO/TC44 “Welding andalliedprocesses“ in collaboration withTechnical Committee CEN/TC121 “Welding” the secretariat of whichisheld by DIN.This Euro
14、pean Standard shall be given the status of a national standard, either by publication of an identical textorbyendorsement, at the latestbyJanuary2010, and conflicting national standards shall be withdrawn atthe latestbyJanuary2010.Attention is drawn to the possibilitythat some of the elements of thi
15、s document maybethe subject of patent rights.CEN and/or CENELEC shallnot be held responsible foridentifying anyorall such patent rights. This document supersedes EN ISO2503:1998, EN 13918:2003.According to the CEN/CENELEC InternalRegulations, the national standardsorganizations of the followingcount
16、riesare bound to implement this European Standard: Austria,Belgium,Bulgaria, Cyprus, CzechRepublic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,Lithuania, Luxembourg, Malta,Netherlands, Norway,Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Swed
17、en, Switzerland and the UnitedKingdom. Endorsement noticeThe textofISO 2503:2009 has been approved by CEN as a EN ISO2503:2009 without anymodification.BS EN ISO 2503:2009+A1:2015EN ISO 2503:2009+A1:2015 (E)EN ISO 2503:2009/A1:2015 (E) 3 Foreword This document (EN ISO 2503:2009/A1:2015) has been prep
18、ared by Technical Committee ISO/TC 44 “Welding and allied processes” in collaboration with Technical Committee CEN/TC 121 “Welding and allied processes” the secretariat of which is held by DIN. This Amendment to the European Standard EN ISO 2503:2009 shall be given the status of a national standard,
19、 either by publication of an identical text or by endorsement, at the latest by October 2015, and conflicting national standards shall be withdrawn at the latest by October 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN
20、 and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus,
21、Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kin
22、gdom. Endorsement notice The text of ISO 2503:2009/Amd 1:2015 has been approved by CEN as EN ISO 2503:2009/A1:2015 without any modification. Foreword to amendment 1BS EN ISO 2503:2009ISO 2503:2009(E) ISO 2009 All rightsreserved iiiContents PageForewordiv1Scope12Normative references23Terms and defini
23、tions.24Symbols and abbreviated terms45Design requirements.45.1 Materials.45.2 Design and construction 46Physical performance and operating characteristics76.1 Pressures.76.2 Flow rates for pressureregulators without flow-metering devices.76.3 Equipment classes for pressureregulators without flow-me
24、tering devices76.4 Pressure-relief valve.96.5 Operating-temperature range.96.6 Performance and operatingcharacteristics.97Marking.117.1 Pressureregulators without flow-metering devices117.2 Pressureregulators with flow-metering devices.118Instructions for use.129Type-test procedure129.1 General .129
25、.2 Test samples and necessarydocuments .139.3 Test conditions139.4 Units139.5 Test for performance and operating characteristics of pressure regulatorswithout flow-metering devices.149.6 Test for performance and operatingcharacteristics of pressure regulator with flow-metering devices.179.7 Tests fo
26、r mechanical resistance of pressure regulators or pressure regulator with a flow-metering device.199.8 Test for durability of markings.23AnnexA(informative) Pressure regulators24AnnexB(informative) Operating principlesofpressure regulatorswith flow-metering devices28Bibliography30BS EN ISO 2503:2009
27、+A1:2015ISO 2503:2009+A1:2015 (E)12BS EN ISO 2503:2009ISO 2503:2009(E)iv ISO 2009 All rightsreservedForeword ISO (the International Organization forStandardization) is a worldwide federation of national standards bodies (ISO member bodies). The workofpreparing International Standards is normallycarr
28、iedout through ISO technical committees. Eachmember bodyinterestedin a subject forwhich a technical committee has beenestablished hasthe right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also takepart in the work. ISO coll
29、aborates closely with the International Electrotechnical Commission (IEC) on all mattersofelectrotechnical standardization. International Standards aredrafted in accordance with the rules given in the ISO/IEC Directives, Part2.The main task of technical committees is to prepare International Standar
30、ds. Draft International Standardsadopted by the technical committees are circulated to the member bodies forvoting. Publication as an International Standard requiresapproval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibilitythat some of the elements of this d
31、ocument maybethe subject of patent rights.ISO shall not be held responsible foridentifying anyorall such patent rights. ISO 2503 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 8, Equipment forgas welding,cutting and allied processes. This third edition c
32、ancels and replaces the second edition (ISO2503:1998), and alsoISO 7292:1997, whichhave been technically revised. Requests forofficial interpretations of anyaspect of this International Standard should be directed to the Secretariat of ISO/TC44/SC8 via yournational standards body. A complete listing
33、 of these bodies can befound at www.iso.org. BS EN ISO 2503:2009+A1:2015ISO 2503:2009+A1:2015 (E)BS EN ISO 2503:2009INTERNATIONAL STANDARD ISO 2503:2009(E) ISO 2009 All rightsreserved 1Gas welding equipment Pressure regulators and pressure regulators with flow-metering devices for gas cylinders used
34、inwelding, cutting and allied processes up to 300 bar (30 MPa) 1 Scope This International Standard specifies requirements for single or two-stage pressure regulatorswithout flow-metering devices forconnection to gas cylindersused for compressed gases up to 300 bar1)(30 MPa), dissolved acetylene, liq
35、uefied petroleumgases (LPG), methylacetylene-propadienemixtures(MPS), and carbon dioxide (CO2), foruse in welding, cutting and allied processes. It does not cover pressure regulatorshaving anominal outletpressure p2 20 bar.This International Standardalsospecifies requirementsfor single or two-stage
36、pressure regulatorswithflow-metering devices forconnection to gascylinders used for compressed gases or mixtures up to 300 bar (30 MPa), and carbon dioxide (CO2), foruse inwelding, cutting and allied processes. Typical processes usingthisequipment are: tungsteninert-gas arcwelding (TIG), metal-arcin
37、ert-gas welding (MIG), metal-arcactive-gaswelding (MAG),plasmaarc welding,tubular-cored-wiretubular-cored-wirewelding and plasmacutting. AnnexB givesexamples of flow-controlsystemsand their flow-measuring devices.This International Standarddoes not cover pressure regulatorsintended fordirectuse on c
38、ylinder bundles. Suchregulatorscomplywiththe safety requirements of ISO 7291, in particular withthe adiabatic compressiontestfor oxygen regulators. NOTE In addition to terms used in English and French, two of the three officialISO languages (English, French andRussian), this document gives the equiv
39、alent terms in German; these are publishedunder the responsibility of the memberbody for Germany (DIN), and are given for information only. Only the terms and definitionsgiven in theofficial languagescan be considered as ISO terms and definitions. 1) 300 bar relates to the maximum cylinder filling p
40、ressure at15C. BS EN ISO 2503:2009+A1:2015ISO 2503:2009+A1:2015 (E)BS EN ISO 2503:2009ISO 2503:2009(E)2 ISO 2009 All rightsreserved2 NormativereferencesThe following referenced documents are indispensable for the application of this document. Fordatedreferences, onlythe edition cited applies.For und
41、ated references, the latestedition of the referenced document (includingany amendments)applies.ISO 554, Standard atmospheres for conditioningand/or testing SpecificationsISO 5145, Cylinder valve outlets for gases and gas mixtures Selection and dimensioningISO 5171, Gaswelding equipment Pressure gaug
42、es used in welding, cutting and allied processesISO/TR7470, Valve outlets for gas cylinders Listof provisions which are either standardized or in useISO 9090, Gastightnessofequipment for gaswelding and allied processesISO 9539, Materials for equipment used in gaswelding,cutting and allied processesI
43、SO 15296, Gaswelding equipment Vocabulary Terms used forgas welding equipment 3 Terms and definitions Forthe purposes of this document, the terms and definitions given in ISO 15296 and the following apply.3.1 accuracy of a flow-meteringdevice classification based onthe permissible errorofthe flow in
44、dication of the device 3.2 adjustable pressure regulators pressure regulator that is providedwith ameans of operator adjustment at the outlet pressureNOTE See A.1. 3.3 fixed orifice device, which deliversbut does not indicate, a known flow whensupplied with a constant upstream pressureand facing no
45、significant back pressure3.4 flow gaugedevice which measures pressure and which is calibrated in units of flowNOTE The flowgauge does not measure flow. It indicates flow by measuring the pressure upstream of afixed orifice.3.5 flow meterdevice that measures and indicates the flow of a specific gas o
46、r gas mixture 3.6 indicated flow(s) flow(s)indicated on the measuring deviceofa pressure regulator with a flow-metering deviceBS EN ISO 2503:2009ISO 2503:2009(E)2 ISO 2009 All rightsreserved2 NormativereferencesThe following referenced documents are indispensable for the application of this document
47、. Fordatedreferences, onlythe edition cited applies.For undated references, the latestedition of the referenced document (includingany amendments)applies.ISO 554, Standard atmospheres for conditioningand/or testing SpecificationsISO 5145, Cylinder valve outlets for gases and gas mixtures Selection a
48、nd dimensioningISO 5171, Gaswelding equipment Pressure gauges used in welding, cutting and allied processesISO/TR7470, Valve outlets for gas cylinders Listof provisions which are either standardized or in useISO 9090, Gastightnessofequipment for gaswelding and allied processesISO 9539, Materials for
49、 equipment used in gaswelding,cutting and allied processesISO 15296, Gaswelding equipment Vocabulary Terms used forgas welding equipment 3 Terms and definitions Forthe purposes of this document, the terms and definitions given in ISO 15296 and the following apply.3.1 accuracy of a flow-meteringdevice classification based onthe permissible errorofthe flow indication of the device 3.2 adjustable pressure regulators pressure regulator that is providedwith ameans of operator adjustment at the outlet pressureNOTE See A.
