BS EN 1326-1996 Gas welding equipment - Small kits for gas brazing and welding《气焊设备 气体硬钎焊和焊接用小型设备箱》.pdf

1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1326 : 1996 The Eur

2、opean Standard EN 1326 : 1996 has the status of a British Standard ICS 25.160.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Gas welding equipment Small kits for gas brazing and weldingThis British Standard, having been prepared under the direction of the Engineering Secto

3、r Board, was published under the authority of the Standards Board and comes into effect on 15 December 1996 BSI 1996 The following BSI references relate to the work on this standard: Committee reference WEE/18 Draft for comment 94/702582 DC ISBN 0 580 26268 5 BS EN 1326 : 1996 Amendments issued sinc

4、e publication Amd. No. Date Text affected Committees responsible for this British Standard The preparation 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 Association

5、British Railways Board Consumer Policy Committee of BSI Department of Trade and Industry (Consumer Safety Unit, CA Division) Health and Safety Executive LP Gas Association Railway Industry Association South Bank University Welding Manufacturers Association (BEAMA Ltd.)BS EN 1326 : 1996 BSI 1996 i Co

6、ntents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of EN 1326 3ii BSI 1996 BS EN 1326 : 1996 National foreword This British Standard has been prepared by Technical Committee WEE/18 and is the English language version of EN 1326 : 1996 Gas welding equipment Sma

7、ll kits for gas brazing and welding, published by the European Committee for Standardization (CEN). EN 1326 : 1996 was produced as a result of international discussion in which the UK took an active part. BS EN 1326 : 1996 supersedes BS 6942 : Part 1 : 1988 which is withdrawn. It is assumed in the d

8、rafting of this British Standard that the execution of its provisions is entrusted to appropriately qualified and experienced people. Cross-references Publication referred to Corresponding British Standard EN 417 : 1992 BS EN 417 : 1992 Non-refillable metallic gas cartridges for liquefied petroleum

9、gases, with or without a valve, for use with portable appliances Construction, inspection, testing and marking EN 559 : 1994 BS EN 559 : 1994 Gas welding equipment Rubber hoses for welding, cutting and allied processes EN 562 : 1994 BS EN 562 : 1995 Gas welding equipment Presure gauges used in weldi

10、ng, cutting and allied processes EN 585 : 1994 BS EN 585 : 1995 Gas welding equipment Pressure regulators for gas cylinders used in welding, cutting and allied processes up to 200 bar EN 730 : 1995 BS EN 730 : 1995 Gas welding equipment Equipment used in gas welding, cutting and allied processes, sa

11、fety devices for fuel gases and oxygen or compressed air General specifications, requirements and tests EN 1327 : 1996 BS EN 1327 : 1996 Gas welding equipment Thermoplastic hoses for welding and allied processes EN 29090 : 1992 BS EN 29090 : 1992 Specification for gas tightness of equipment for gas

12、welding and allied processes EN 29539 : 1992 BS EN 29539 : 1992 Specification for materials for equipment used in gas welding, cutting and allied processes Compliance with a British Standard does not of itself confer immunity from legal obligations. This document comprises a front cover, an inside f

13、ront cover, pages i and ii, pages 1 to 8, an inside back cover and a back cover.CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1996 All rights of reproduction and communication i

14、n any form and by any means reserved in all countries to CEN and its members. Ref. No. EN 1326 : 1996 E EUROPEAN STANDARD EN 1326 NORME EUROPE ENE EUROPA ISCHE NORM May 1996 ICS 25.160.30 Descriptors: Gas welding, brazing, welding equipment, definitions, equipment specification, utilization, mainten

15、ance, safety, instructions, tests, leaktightness, mechanical strength, marking English version Gas welding equipment Small kits for gas brazing and welding Mate riel de soudage aux gaz Petits ensembles pour le brassage et le soudage aux gaz Gasschweigera te Kleingera te zum Gaslo ten und -schweien T

16、his European Standard was approved by CEN on 1996-05-11. 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 reference

17、s 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 into i

18、ts 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, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switz

19、erland and United Kingdom.Page 2 EN 1326 : 1996 BSI 1996 Foreword This European Standard has been prepared by Technical Committee CEN/TC 121, Welding, of which the secretariat is held by DS. This European Standard shall be given the status of a national standard, either by publication of an identica

20、l text or by endorsement, at the latest by November 1996, and conflicting national standards shall be withdrawn at the latest by November 1996. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Stan

21、dard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page 1 Scope 3 2 Normative references 3 3 Definitions 3 4 Design 4 5 Marking 6 6 Instructions for use and

22、 maintenance 6 7 Tests 7Page 3 EN 1326 : 1996 BSI 1996 1 Scope This European Standard specifies safety requirements for the construction of small kits for brazing, soldering and welding for non-professional use. This standard is applicable to appliances whose welding equipment is completely set up i

23、n the factory and which use a liquefied gas or gas mixture as combustible gas and compressed oxygen, air or air/oxygen mixture for combustion. It is applicable to appliances which use gases contained in refillable containers having a maximum water capacity of 5 l, or in disposable containers with ma

24、ximum water capacity of 1 l. It is not applicable to the following: appliances using acetylene or hydrogen as combustible gases; air-aspirated appliances; appliances working with an oxygen generator; appliances working by electrolysis. 2 Normative references This European Standard incorporates by da

25、ted or undated reference, 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 revision of any of these publications apply to this European Standard

26、only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 417 Non-refillable metallic gas cartridges for liquefied petroleum gases, with or without a valve, for use with portable appliances Construction, inspection, te

27、sting and marking prEN 521 Dedicated liquefied petroleum gas appliances Portable appliances operating at vapour pressure from liquefied petroleum gas containers EN 559 Gas welding equipment Rubber hoses for welding, cutting and allied processes EN 562 Gas welding equipment Pressure gauges used in we

28、lding, cutting and allied processes EN 585 : 1994 Gas welding equipment Pressure regulators for gas cylinders used in welding, cutting and allied processes up to 200 bar EN 730 : 1995 Gas welding equipment Equipment used in gas welding, cutting and allied processes Safety devices for fuel gases and

29、oxygen or compressed air General specifications, requirements and tests prEN 837-1 Pressure gauges Part 1: Bourdon tube pressure gauges Dimensions, metrology, requirements and testing prEN 849 Gas cylinder valves Specification and type testing EN 1327 Gas welding equipment Thermoplastic hoses for we

30、lding and allied processes EN 29090 Gas tightness of equipment for gas welding and allied processes (ISO 9090 : 1989) EN 29539 Materials for equipment used in gas welding, cutting and allied processes (ISO 9539 : 1988) ISO 5172 : 1995 Manual blowpipes for welding, cutting and heating Specifications

31、and tests 3 Definitions For the purposes of this standard, the following definitions apply. 3.1 appliance Small kits for brazing and welding, that generally include: the welding equipment; the gas containers; the carrying construction; the instructions; the eye protecting equipment; the accessories.

32、 3.2 welding equipment Set of devices (connecting devices, gas controls, regulators, safety devices, hoses, blowpipe, etc.) assembled in the factory. NOTE. According to the design of the welding equipment some devices can be unnecessary. 3.3 non-refillable containers Containers designed to be dispos

33、ed of when empty, e.g.: pierceable cartridges; cartridges with valve; non-refillable cylinders. 3.4 connecting device A part of the welding equipment designed to provide the connection to the gas container. NOTE. It can be separate or integral with another device of the welding equipment. 3.5 shut-o

34、ff device A device which controls the flow of the gas to the welding equipment; it can be fitted to the container (cylinder valve or tap) or to the welding equipment.Page 4 EN 1326 : 1996 BSI 1996 3.6 gas cylinder valve A part, integral with a container, provided with a threaded outlet and a handwhe

35、el which opens and closes the gas. 3.7 pressure regulator A part which allows reduction of the pressure of the gas flowing out of the container; it can be adjustable or preadjusted, integral with another device or separate. 3.8 safety device A device which, when correctly used and placed, prevents t

36、he damage resulting from misuse or malfunction of the blowpipe or associated equipment. It can be: a non-return valve, which prevents the passage of the gas in the direction opposite to normal flow; or a flame arrestor which quenches a flame front (flashback). The two functions can be associated in

37、a single device. 3.9 carrying construction A structure which allows containers, welding equipment and accessories to be carried and that secures the gas containers in a safe position. 3.10 adjustable blowpipe A blowpipe fitted with a valve on each gas line so as to control and adjust the flame. NOTE

38、. A blowpipe without a valve is said to be non-adjustable. 4 Design 4.1 General All parts of the appliance shall be free of sharp corners and edges which could give rise to injury during normal assembling, use and maintenance. Parts and devices of the welding equipment which are integral to its safe

39、 operation shall be fitted securely so as to avoid loosening in normal use. Compliance shall be checked during the testing. Welding equipment including the connecting device shall be tight when tested according to 7.2 both before and after the endurance test described in 7.3. The connection of diffe

40、rent parts of the appliance by the user shall be uncomplicated and safe. Respective position of the parts shall be obvious. Necessary tools and instructions for a safe assembly shall be supplied with the appliance. 4.2 Materials Materials shall comply with requirements specified in EN 29539. 4.3 Gas

41、 containers 4.3.1 Non-refillable gas containers Pierceable cartridges and cartridges with valves shall comply with the requirements of EN 417. Cartridges for compressed oxygen should comply with the national standards or regulations. Non-refillable cylinders should comply with national standards or

42、regulations. 4.3.2 Refillable containers Refillable containers should comply with the requirements of national standards or regulations. 4.4 Connecting device The connecting device shall be designed to fit the container specified by the manufacturer. It shall not be possible to interchange the fuel

43、gas and oxygen containers. The devices for cartridges for fuel gas shall comply with the relevant requirements of EN 521. 4.5 Shut-off device It shall be possible to shut off the gas supply quickly at each gas container without disconnecting the gas container. The device can be a separate part (tap)

44、 or integral with another part (regulator, for example). If the shut-off device is not an integral part of the container it shall be clearly marked with the gas it controls. If the device operates by turning, the closing direction shall be clockwise and marked in a durable and visible fashion. If th

45、e device has a fixed OFF position it shall also be marked. It shall not be possible to unintentionally remove the part of the device which opens and closes the gas flow. The body of the device shall show no permanent deformation when tested according to a) of 7.4. When the shut-off device is a cylin

46、der valve (or tap) it shall comply with the requirements of EN 849. 4.6 Pressure regulator 4.6.1 General The circuit of the gas shall be provided with a device reducing the pressure when the maximum service pressure of the container (pressure at 50 C) exceeds the maximum working pressure of the hose

47、 or the blowpipe. The device shall be so designed, that it cannot be set to give a pressure exceeding the maximum working pressure of the hose or the blowpipe.Page 5 EN 1326 : 1996 BSI 1996 4.6.2 Gas containers with cylinder valve For gas containers with a cylinder valve, adjustable pressure regulat

48、ors shall comply with EN 585. Preset pressure regulators can be used provided that the standard discharge does not exceed 2,5 m 3 /h. They shall comply with the following safety requirements of EN 585, namely materials, resistance to internal ignition, relief valve and mechanical resistance. Physica

49、l characteristics (pressures and flows) are left to the manufacturers discretion provided the values of coefficient i and R shall comply with the requirements of EN 585. Pressure gauges shall comply with EN 562. For pressure gauges with non-standardized dimensions (size 40 mm) the requirements of EN 562 shall apply except those dealing with dimensions. 4.6.3 Other containers For other gas containers the pressure regulators shall comply with the following. a) The body of the