【BS英国标准】BS EN 961-1996 Gas welding equipment — Manifold regulators used in welding, cutting and allied processes up to 200 bar.doc
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1、BRITISH STANDARD BS EN961:1996Gas welding equipment Manifold regulatorsused in welding, cutting and allied processes up to 200 barThe European Standard EN 961:1995 has the status of aBritish StandardICS 23.060.40; 25.160.10BS EN 961:1996Committees responsible for thisBritish StandardThe preparation
2、of this British Standard was entrusted to Technical Committee WEE/18, Gas welding and cutting appliances, upon which the following bodies were represented:British Compressed Gases AssociationBritish Railways BoardConsumer Policy Committee of BSI Health and Safety ExecutiveLP Gas AssociationRailway I
3、ndustry AssociationSouth Bank UniversityWelding Manufacturers Association (BEAMA Ltd.)This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on15 April 1996 BSI 11-1999The followi
4、ng BSI references relate to the work on this standard:Committee reference WEE/18Draft for comment 92/86390 DCISBN 0 580 23731 1Amd. No.DateCommentsAmendments issued since publicationBS EN 961:1996ContentsPage Committees responsibleInside front cover National forewordii Foreword 2Text of EN 9613List
5、of referencesInside back cover BSI 11-1999iBS EN 961:1996National forewordThis British Standard has been prepared by Technical Committee WEE/18, and is the English language version of EN 961:1995 Gas welding equipment Manifold regulators used in welding, cutting and allied processes up to 200 bar pu
6、blished by the European Committee for Standardization (CEN).It is assumed that the execution of the provision of the document is entered to suitably qualified and experienced persons.Cross-referencesPublication referred to Corresponding British StandardEN 562:1994BS EN 562:1995 Gas welding equipment
7、. Pressure gauges used in welding, cutting and allied processesEN 585:1994BS EN 585:1995 Gas welding equipment. Pressure regulators for gas cylinders used in welding, cutting and allied processes up to 200 barEN 29090:1992BS EN 29090:1992 Specification for gas tightness of equipment for gas welding
8、and allied processesEN 29539:1992BS EN 29539:1992 Specification for materials for equipment used in gas welding, cutting and allied processesA British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct applica
9、tion.Compliance with a British Standard does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 14, an inside back cover and a back cover.This standard has been updated (see
10、copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. BSI 11-1999iiEUROPEAN STANDARD NORME EUROPENNEEUROPISCHE NORMEN 961August 1995ICS 23.060.40; 25.160.10Descriptors: Welding equipment, gas welding, gas cutting, compresse
11、d gas, acetylene, pressure regulators, gas cylinders, specifications, design, safety, equipment specifications, performance evaluation, tests, markingEnglish versionGas welding equipment Manifold regulators used in welding, cutting and allied processes up to 200 barMatriel de soudage aux gaz Dtendeu
12、rs des centrales de bouteilles (de gaz industriels) pour le soudage, le coupage et les techniques connexes jusqu 200 barGasscheweigerte Haupstellendruckregler fr Schweien, Schneiden und verwandte Verfahren bis 200 barThis European Standard was approved by CEN on 1995-04-08. CEN members are bound to
13、comply 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 Central
14、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 into its own language and notified to the CEN Central Secretariat has the same status as t
15、he official versions.CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.CENEuropean Committee for Standardization Comit Europen
16、 de Normalisation Europisches Komitee fr NormungCentral Secretariat: rue de Stassart 36, B-1050 Brussels 1995 All rights of reproduction and communication in any form and by any means reserved in all countries to CEN and its members.Ref. No. EN 961:1995 EEN 961:1995ForewordThis European Standard has
17、 been prepared by Subcommittee 7, Equipment for gas welding, cutting and allied processes, of Technical Committee CEN/TC 121, Welding, of which the secretariat is held by DS.It is based on ISO 7291:1990 Welding, cutting and allied processes Manifold regulators, but amended considering EN 585 on pres
18、sure regulators for gas cylinders up to 200 bar.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 February 1996, and conflicting national standards shall be withdrawn at the latest by February 1996.
19、In accordance with the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom.
20、Contents9MarkingPage129.1Regulator129.2Relief valve12Annex A (informative) Decomposition test for manifold regulators used for acetylene13Figure 1 Typical dynamic expansion curves4Figure 2 Flow rate characteristics4Figure 3 Manifold regulator5Figure 4 Allowable internal leakage rates8Figure 5 Exampl
21、e of test set-up for the measurement of the maximum flow rate, Qmax8Figure 6 Example of test set-up forplotting the dynamic curve for outlet pressure9Figure 7 Test bench for ignition test11Figure 8 Test interval12Figure A.1 Test bench for decomposition test13Table 1 Conversion coefficients, U5Table
22、2 Pressure7Table 3 Test pressures11Table 4 Code letters for gases to be used for marking of regulators12Page1Scope32Normative references33Definition34Physical characteristics34.1Pressures34.2Flow rates34.3Coefficients35Units45.1Pressures45.2Flow rate45.3Temperatures46Design and safety requirements56
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