BS 2767-1991 Specification for manually operated copper alloy valves for radiators
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ID： |
744C4D8062414E8D801908DBE0000265 |
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文件大小(MB)： |
1.24 |
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页数： |
15 |
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文件格式： |
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日期： |
2024-6-23 |
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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 2767: 1991,Specification for,Manually operated,copper alloy valves for,radiators,Robinets en alliages de cuivre a conunande,manuelle pour radiateurs - Specifications,Handbetatigte Armaturen aus,Kupferlegierungen fiir Heizkorper,IF-、 j ヽ!""I,< BSI B)A1. Nt) COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM BSI,ヽ,BS 2767 : 1991,Committees responsible for this,British Standard,The preparation of this British Standard was entrusted by the Refrigeration,Heating and Air Conditioning Standards Policy Committee (RHE/-) to Technical,Committee RHE/16, upon which the following bodies were represented:,Association of Manufacturers of Domestic Unvented Supply Systems,Equipment (MODUSSE),BEAMA Ltd. (Association of Control Manufacturers (TACMA)),British Gas plc,British Plumbing Fittings Manufacturers5 Association,British Valve and Actuator Manufacturers, Association,Building Services Research and Information Association,Department of the Environment (Property Services Agency),Heating and Ventilating Contractors' Association,Hevac Association,Institute of Domestic Heating Engineers,Institute of Refrigeration,Institution of Gas Engineers,Society of British Gas Industries,This British Standard, having,been prepared under the,direction of the Refrigeration,Heating and Air Conditioning,Standards Policy Committee,was published under the,authority of the Board of BSI,and comes into effect on,31 January 1991,. BSI 1991,First published December 1956,Second edition August 1972,Third edition January 1991,The following BSI references,relate to the work on this,standard:,Committee reference RHE/16,Draft for comment 87/73087 DC,ISBN 0 580 19042 0,Amendments issued since publication,Amd. No. Date Ibxt affected,BS 2767 : 1991,Contents,Page,Committees responsible Inside front cover,Foreword 2,Specification,1 Scope 3,2 Definitions 3,3 Designation of valves by size 3,4 Pressure and temperature ratings 3,5 Marking 3,6 Materials and manufacture 3,7 Design and construction 5,8 Type tests 8,9 Routine pressure tests 9,Appendices,A Information to be supplied and requirements to be agreed 10,B Method of testing the torque strength of the handwheel when,assembled to the valve 10,C Method of testing the torque strength of the union nut 11,Tables,1 Materials 4,2 Minimum flow area through valve and tailpiece 5,3 Component dimensions 6,4 Ibst requirements for rubber stem seals 8,5 Ibrque values for testing the handwheel when assembled to the valve 10,6 Ibrque values for testing the union nut 11,Figures,1 Typical angle pattern valve 5,2 Typical Y-pattem valve 6,3 Typical gate pattern valve 7,4 Arrangement for testing the resistance of the handwheel to torque 10,1,BS 2767 : 1991,Foreword,This revision of BS 2767 has been prepared under the direction of the,Refrigeration, Heating and Air Conditioning Standards Policy Committee and,supersedes BS 2767 : 1972 which is withdrawn. It takes into account,developments in manufacture and testing of radiator valves, and latitude is,allowed for variation in design of these valves.,The principal changes in this revision are as follows.,(a) The title includes the words 'manually operated* to indicate exclusion of,thermostatic radiator valves which are covered in BS 6284.,(b) Pressure and temperature ratings are unchanged but guidance is given,where compression or capillary ends in accordance with BS 864 : Part 2 are,used.,(c) A test for the torque strength of the handwheel is included.,(d) Unions have been omitted owing to the decrease in their use.,(e) A test for the torque strength of the union nut is included.,(f) The 1% size valve has been deleted owing to diminished use, but,connections for 8 mm, 10 mm and 12 mm copper tube are now included.,(g) Compression type tailpiece connections are included (see figure 1).,(h) Ibsts are divided into type tests and routine tests.,(i) The grade of chromium plating is specified.,0) A new method of defining minimum flow area is given that aligns with,BS 864 : Part 2.,(k) Provisions have been made for a draining facility to be incorporated in the,valve body or tailpiece,(1) Tbsts for rubber stem seals have now been related to valve types.,Compliance with a British Standard does not of itself confer immunity from,legal obligations.,2,BS 2767 : 1991,Specification,1 Scope,This Biitish Standard specifies materials, essential,aspects of design, and performance requirements,for manually operated copper alloy valves for,connection to hot water radiators.,Two types of valve are specified on the basis of,their pressure ratings; type 4 with a maximum,working pressure of 4 bar1) and type 10 with a,maximum working pressure of 10 bar,Th……
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