DIN EN ISO 15615-2013 Gas welding equipment - Acetylene manifold systems for welding cutting and allied processes - Safety requirements in high-pressure devices (ISO 15615 2013) Ge.pdf

1、August 2013 Translation by DIN-Sprachendienst.English price group 13No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS

2、 23.060.40; 25.160.30!%($J“2050139www.din.deDDIN EN ISO 15615Gas welding equipment Acetylene manifold systems for welding, cutting and allied processes Safety requirements in high-pressure devices (ISO 15615:2013);English version EN ISO 15615:2013,English translation of DIN EN ISO 15615:2013-08Gassc

3、hweigerte Acetylenflaschen-Batterieanlagen fr Schweien, Schneiden und verwandte Prozesse Sicherheitsanforderungen fr Hochdruckeinrichtungen (ISO 15615:2013);Englische Fassung EN ISO 15615:2013,Englische bersetzung von DIN EN ISO 15615:2013-08Matriel de soudage aux gaz Centrales de dtente pour la dis

4、tribution dactylne pour le soudage, le coupage et lestechniques connexes Exigences de scurit pour les dispositifs haute pression (ISO 15615:2013);Version anglaise EN ISO 15615:2013,Traduction anglaise de DIN EN ISO 15615:2013-08SupersedesDIN EN ISO 15615:2002-06www.beuth.deDocument comprises 23 page

5、sIn case of doubt, the German-language original shall be considered authoritative.07.13 DIN EN ISO 15615:2013-08 2 A comma is used as the decimal marker. National foreword This document (EN ISO 15615:2013) has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes”, Subcommitte

6、e SC 8 “Equipment for gas welding, cutting and allied processes” in collaboration with Technical Committee CEN/TC 121 “Welding” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Schweien und verwandte Verfahren (Welding and Allied Processes

7、Standards Committee), Working Group NA 092-00-07 AA Ausrstung zum Gasschweien, Schneiden und verwandte Prozesse. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 2503:2009 DIN EN ISO 2503:2009 ISO 9090 DIN ISO 9090 ISO 9539 DIN EN ISO 95

8、39 ISO 10297 DIN EN ISO 10297 ISO 14114 DIN EN ISO 14114 ISO 15296:2004 DIN EN 13622:2002 Requests for official interpretations of any aspect of this International Standard should be directed to the Secretariat of ISO/TC 44/SC 8 via your national standards body. A complete listing of these bodies ca

9、n be found at www.iso.org. Amendments This standard differs from DIN EN ISO 15615:2002-06 as follows: a) Clause 2 “Normative references” has been updated; b) Clause 3 “Terms and definitions” has been extended to include “3.9 pressure gauge”; c) Subclause 5.2.6 “Acetylene decomposition” (formerly 5.2

10、.5) has been revised; d) in Subclauses 5.3.2 and 5.3.4, the reference to Subclause 5.2.2 has been deleted; e) in Subclauses 5.3.5, 5.3.6 and 5.3.7, reference is now made to Subclause 5.2.3; f) in Subclause 6.2, the temperature range has been supplemented; g) the test gas to be used for the decomposi

11、tion test shall be acetylene (6.3); h) Table 1 has been deleted; i) in Subclause 6.7, the reference to EN 849 has been replaced by ISO 10297 and the number of cycles required has been specified; j) Subclause 6.10 has been deleted; k) in Annex A, Table A.1, the requirements for the automatic pressure

12、-actuated shut-off valve (3.5) have been supplemented in respect of the pressure resistance; l) in Annex A, Table A.1, the requirements for the automatic pressure-actuated shut-off valve (3.9) have been supplemented in respect of the pressure resistance; m) the standard has been editorially revised.

13、 Previous editions DIN EN ISO 15615: 2002-06 DIN EN ISO 15615:2013-08 3 National Annex NA (informative) Bibliography DIN EN 13622:2002, Gas welding equipment Terminology Terms used for gas welding equipment DIN EN ISO 2503:2009, Gas welding equipment Pressure regulators for gas cylinders used in wel

14、ding, cutting and allied processes up to 300 bar DIN EN ISO 9539, Gas welding equipment Materials for equipment used in gas welding, cutting and allied processes DIN EN ISO 10297, Transportable gas cylinders Cylinder valves Specification and type testing DIN EN ISO 14114, Gas welding equipment Acety

15、lene manifold systems for welding, cutting and allied processes General requirements DIN ISO 9090, Gas tightness of equipment for gas welding and allied processes DIN EN ISO 15615:2013-08 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 15615 April 2013 ICS

16、 25.160.30 Supersedes EN ISO 15615:2002English Version Gas welding equipment - Acetylene manifold systems for welding, cutting and allied processes - Safety requirements in high-pressure devices (ISO 15615:2013) Matriel de soudage aux gaz - Centrales de dtente pour la distribution dactylne pour le s

17、oudage, le coupage et les techniques connexes - Exigences de scurit pour les dispositifs haute pression (ISO 15615:2013) Gasschweigerte - Acetylenflaschen-Batterieanlagen fr Schweien, Schneiden und verwandte Prozesse - Sicherheitsanforderungen fr HochdruckeinrichtungenThis European Standard was appr

18、oved by CEN on 9 February 2013. CEN members are bound to 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 nationa

19、l standards may be obtained on application to the CEN-CENELEC Management 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

20、 and notified to the CEN-CENELEC Management Centre has the same 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, Hu

21、ngary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Manage

22、ment Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 15615:2013: E(ISO 15615:2013) EN ISO 15615:2013 (E) Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and def

23、initions .4 4 Design .5 5 Requirements .5 5.1 General 5 5.2 General requirements 5 5.3 Additional requirements to be met by specific types of device .6 6 Type tests .7 6.1 General 7 6.2 Reference values and accuracy of instruments .7 6.3 Test gases 8 6.4 Acetylene decomposition test 8 6.5 Pressure r

24、esistance test .9 6.6 Non-return valve test .9 6.7 Endurance test .10 6.8 Trip pressure test for automatic pressure-actuated shut-off valves 11 6.9 Internal gas leakage test .12 7 Manufacturers instructions .12 8 Marking .12 Annex A (normative) Summary of tests 13 Bibliography 19 2DIN EN ISO 15615:2

25、013-08 EN ISO 15615:2013 (E) Foreword This document (EN ISO 15615:2013) has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes” in collaboration with Technical Committee CEN/TC 121 “Welding” the secretariat of which is held by DIN. This European Standard shall be given the

26、status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2013, and conflicting national standards shall be withdrawn at the latest by October 2013. Attention is drawn to the possibility that some of the elements of this document may be the

27、 subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 15615:2002. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to imple

28、ment this European Standard: 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, Malta, Netherlands, Norway, Poland, Portugal, Romania,

29、 Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 15615:2013 has been approved by CEN as EN ISO 15615:2013 without any modification. 3DIN EN ISO 15615:2013-08 1 ScopeThis International Standard establishes the general specifications, r

30、equirements and tests for devices located on the high-pressure side of acetylene manifold systems as defined in ISO 14114. It does not cover the high-pressure piping, flexible hoses and the regulator.NOTE The terms “upstream” and “downstream” refer to the normal direction of gas flow in the device.2

31、 Normative referencesThe following referenced documents are indispensable for the application 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.ISO 2503:2009, Gas welding eq

32、uipment Pressure regulators and pressure regulators with flow-metering devices for gas cylinders used in welding, cutting and allied processes up to 300 bar (30 MPa)ISO 9090, Gas tightness of equipment for gas welding and allied processesISO 9539, Gas welding equipment Materials for equipment used i

33、n gas welding, cutting and allied processesISO 10297, Gas cylinders Cylinder valves Specification and type testing3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1non-return valvedevice which prevents passage of gas in the direction opposite to f

34、lowISO 15296:20043.2manual quick-acting shut-off valvemanually activated device to quickly stop the gas flowISO 15296:20043.3automatic quick-acting shut-off deviceself-acting device which closes quickly, e.g. when triggered by an acetylene explosion in the high-pressure manifold pipeworkISO 15296:20

35、043.4remotely actuated shut-off valvequick-acting shut-off valve which quickly stops the gas flow when remotely triggeredEN ISO 15615:2013 (E) 4DIN EN ISO 15615:2013-08 3.5automatic pressure-actuated shut-off valvedevice which automatically stops the gas supply to the regulator when the downstream p

36、ressure rises above the maximum operating pressure3.6three-way valvedevice which allows gas flow from one side of the high-pressure manifold to enter the regulator while isolating flow from the second sideNote 1 to entry: Its position can be reversed so that gas flows from the second side while the

37、first side is isolated. It prevents simultaneous flow from both sides.3.7stop valvedevice to prevent, when closed, the flow of gas3.8multifunctional safety devicedevice which incorporates two or more of the safety functionsISO 15296:20043.9pressure gaugedevice which shows the actual pressure of the

38、assembly (digital or analogue readouts) (e.g. used in the high-pressure line of manifold systems or in pressure regulators for manifold systems.)4 DesignComponents within the devices should be designed to remain at the same electrostatic potential as the body of the device during operation. All meta

39、l components in contact with gas should be electrically continuous to prevent static electricity discharges.5 Requirements5.1 GeneralThe general requirements (see 5.2) apply to all the devices defined in Clause 3. The multifunctional safety devices shall meet the general and additional requirements

40、corresponding to each function.5.2 General requirements5.2.1 MaterialsMaterials used for devices shall be in accordance with ISO 9539.5.2.2 External gas tightnessThe general requirements on external gas tightness shall be in accordance with ISO 9090 at all times, before and after the tests.EN ISO 15

41、615:2013 (E) 5DIN EN ISO 15615:2013-08 5.2.3 Internal gas tightnessWhere internal gas tightness is required in this International Standard, the leakage rate shall not exceed 50 cm3/h for devices with a connection internal bore (diameter) less than 11 mm, or less than 0,41d2for larger diameters. See

42、6.9 for test details.NOTE The expression 0,41d2gives the value of the flow in cm3/h when d is the internal bore (diameter), in mm, of the largest connection in the device.5.2.4 Internal gas tightness after decomposition testWhere internal gas tightness is required after acetylene decomposition, the

43、leakage rate shall not exceed 50 l/h. See 6.9 for test details.5.2.5 Pressure resistanceThe housings of the devices shall withstand a pressure of 31,5 MPa (315 bar) for 5 min without any observed leakage. After pressurization, there shall be no visible permanent deformation. See 6.5 for test details

44、.5.2.6 Acetylene decompositionAfter the device has been tested with decomposition at 2,5 MPa initial pressure in accordance with 6.4, there shall be no visible permanent deformation of the device. No escape of gas shall occur during the test. Destruction of inner parts is permitted.5.3 Additional re

45、quirements to be met by specific types of device5.3.1 Non-return valveNon-return valves shall not allow the reverse flow of gas greater than 150 cm3/h (0,15 l/h) when tested in accordance with 6.6.1 and 6.6.2, both before and after the 2 000-cycle fatigue test (see 6.6.3).This requirement does not a

46、pply to the non-return valve after it has been subjected to the acetylene decomposition test.5.3.2 Manual quick-acting shut-off valveThe decomposition test shall be carried out in the open position. Manual quick-acting shut-off valves shall meet the requirements of 5.2.3 before and after the enduran

47、ce test (see 6.7). In the case of turn-acting valves, they shall not require more than half of a turn to close. See 6.7 for endurance test details. For valves with handwheels, the closing torque applied for the decomposition test shall be the endurance test torque as defined in the endurance test fo

48、r cylinder valves in ISO 10297.5.3.3 Automatic quick-acting shut-off deviceAutomatic quick-acting shut-off devices shall be triggered by an acetylene decomposition at 0,6 MPa (6 bar) and 2,5 MPa (25 bar). After tripping by acetylene decomposition, the internal gas leakage shall meet the requirements of 5.2.4.5.3.4 Remotely actuated shut-off valveRemotely actuated shut-off valves shall be triggered by an acetylene decomposition at 0,6 MPa (6 bar) and 2,5 MPa (25 bar). Remotely actuated shut-of