BS 1968-1953 Specification for floats for ballvalves (copper)
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ID： |
EA878C7F06DC4790B3AB00D162A23E4C |
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文件大小(MB)： |
0.21 |
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页数： |
14 |
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文件格式： |
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日期： |
2010-10-4 |
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购买： |
文本摘录（文本识别可能有误，但文件阅览显示及打印正常，pdf文件可进行文字搜索定位）：
BRITISH STANDARD BS 1968:1953,Incorporating,Amendment,Nos. 1 and 2,Specification for,Floats for ballvalves,(copper),CONFIRMED,DECEMBER 2007,BS 1968:1953,This British Standard, having,been approved by the Sanitary,Appliances Industry Standards,Committee and endorsed by,the Chairman of the Building,Divisional Council, was,published under the authority,of the General Council on,8 May 1953,. BSI 10-1999,ISBN 0 580 35579 9,Co-operating organizations,The Sanitary Appliances Industry Standards Committee, under whose,supervision this British Standard was prepared, consists of representatives,from the following Government departments and scientific and industrial,organizations:,Admiralty Metal Sink Manufacturers’ Association,British Bath Manufacturers’ Association Ministry of Housing and Local Government*,British Ironfounders’ Association* Ministry of Works*,British Plastics Federation National Brassfoundry Association*,British Sanitary Earthenware Manufacturers’ National Federation of Building Trades,Association Employers,British Sanitary Fireclay Association National General Export Merchants Group,British Waterworks Association* Royal Institute of British Architects*,D.S.I.R. — Building Research Station* Royal Institute of Chartered Surveyors,Flushing Cistern Makers’ Association* Royal Sanitary Institute*,Institute of Plumbers* Sanitary Inspectors’ Association,Institution of Municipal Engineers* Scottish Federation of Plumbers and Domestic,Institution of Sanitary Engineers Engineers (Employers) Associations,London County Council Water Companies Association*,The Government departments and scientific and industrial organizations,marked with an asterisk in the above list, together with the following, were,directly represented on the committee entrusted with the preparation of this,British Standard:—,Associated Master Plumbers and Domestic Crown Agents for the Colonies,Engineers Distributors of Builders’ Supplies Joint Council,Association of Heating, Ventilating and Electric Water Heater Manufacturers’,Domestic Engineering Employers Association,British Electrical Development Association Institute of British Foundrymen,British Electrical and Allied Manufacturers’ Institution of Gas Engineers,Association Institution of Heating and Ventilating,British Non-Ferrous Metals Research Engineers,Association Institution of Water Engineers,Building Industries National Council London Chamber of Commerce,B.W.A. Licensees Association Metropolitan Water Board,Copper Ball Manufacturers’ Association Society of British Gas Industries,Copper Tube Fittings Manufacturers’ Urban District Council’s Association,Association,Amendments issued since publication,Amd. No. Date of issue Comments,3220 November,1958,4667 September,1962,Indicated by a sideline in the margin,BS 1968:1953,. BSI 10-1999 i,Contents,Page,Co-operating organizations Inside front cover,Foreword ii,1 Scope 1,2 Definitions 1,3 General 1,4 Materials 1,5 Jointing of copper floats 1,6 Floats other than spherical 2,7 Bosses and fitments 2,8 Tolerances 2,9 Tests 2,10 Marking 2,Appendix Information to be supplied by the purchaser 3,Table 1 — Spherical copper floats 4,Table 2 — Classification of bosses for use with,classes A, B and C floats 5,Table 3a — Bosses for classes A and C floats with,soldered and brazed joints 6,Table 3b — Bosses for class B floats with solderless joints 7,Table 4 — Weight of boss for classes A and C floats and,of boss and fitments for class B floats 8,Table 5 — Assembled weight of spherical copper floats,including solder or other jointing material 8,BS 1968:1953,ii . BSI 10-1999,Foreword,This standard makes reference to the following British Standards:—,BS 84, Screw threads of Whitworth form.,BS 218, Brass bars and sections (suitable for forging) and drop forgings.,BS 219, Soft solders.,BS 427, Tables of diamond pyramid hardness numbers.,BS 899, Cold rolled copper sheets and strip (half-hard and annealed) for general,purposes.,BS 1212, Ballvalves (“Portsmouth” type) excluding floats.,BS 1400, Copper alloy ingots and castings.,BS 1845, Filler alloys for brazing (silver solders and brazing solders).,This British Standard specifies requirements for copper floats for use with,ballvalves and has been issued to facilitate the manufacture — as separate items,to be purchasable as such — of floats suitable for ballvalves complying with the,requirements of BS 1212, “Ballvalves (“Portsmouth” type)” and other types of,ballvalve requiring floats of this description. Reference should be made to,BS 1212 for permissible alternative types of float for use with ballvalves,complying with that specification.,For information regarding the correct……
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