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BS 74381991 Stee an cpper ay wafer check vaves singe isk springae type文档.doc

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BS 74381991 Stee an cpper ay wafer check vaves singe isk springae type文档

BS 7438-1991 Steel and copper alloy wafer check valves, single disk, spring-loaded type BRITISH STANDARD BS 7438:1991 Specification for Steel and copper alloy wafer check valves, single disk, spring-loaded type BS 7438:1991 This British Standard, having been prepared under the direction of the Piping Systems Components Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 31 May 1991 ?? BSI 08-1999 The following BSI references relate to the work on this standard: Committee reference PSE/7 Draft for comment 90/75853 DC ISBN 0 580 19614 3 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Piping Systems Components Standards Policy Committee (PSE/-) to Technical Committee PSE/7, upon which the following bodies were represented: Amalgamated Engineering Union Association of Bronze and Brass Founders Association of Building Component Manufacturers British Chemical Engineering Contractors’ Association British Foundry Association British Gas plc British Maritime Technology British Plumbing Fittings Manufacturers’ Association British Valve and Actuator Manufacturers’ Association Chartered Institution of Building Services Engineers Copper Development Association Department of the Environment (Property Services Agency) Electricity Supply Industry in United Kingdom Energy Industries Council Engineering Equipment and Materials Users’ Association GAMBICA (BEAMA Ltd.) Health and Safety Executive Institute of British Foundrymen Institution of Chemical Engineers Institution of Gas Engineers Institution of Mechanical Engineers Institution of Water and Environmental Management Liquefied Petroleum Gas Industry Technical Association (UK) Pipeline Industries Guild Society of British Gas Industries Society of British Water Industries Water Companies’ Association Water Services’ Association of England and Wales West Midlands CBI Amendments issued since publica