BS 5779-1979 Specification for spray mixing taps《混合喷射旋塞规范》.pdf
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1、BRITISH STANDARD BS 5779:1979 Specification for Spray mixing taps UDC 621.646.72:621.647.3BS5779:1979 This British Standard, having been prepared under the directionof the Building ServicesStandards Committee,was published underthe authorityof the Executive Boardand comesintoeffect on 31October1979
2、BSI 12-1999 The following BSI references relate to the work on this standard: Committee reference SEB/2 Draft for comment 78/11892 DC ISBN 0 580 10881 3 Cooperating organizations The Building Services Standards Committee, under whose direction this British Standard was prepared, consists of represen
3、tatives from the following Government departments and scientific and industrial organizations: The 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: Association of
4、District Councils Department of Health and Social Security Bath Manufacturers Co-ordinating Committee Domestic Solid Fuel Appliances Approval British Gas Corporation* Scheme British Ironfounders Association Environmental Health Officers Association British Plastics Federation* Greater London Council
5、 British Precast Concrete Federation Ltd.* Heating and Ventilating Contractors Builders Merchants Federation* Association* Building Services Research and Information Institute of Plumbing Association Institution of Gas Engineers* Chartered Institution of Building Services* Institution of Public Heal
6、th Engineers* Clay Pipe Development Association Limited Institution of Structural Engineers Consumer Standards Advisory Committee Institution of Water Engineers and Scientists* of BSI National Brassfoundry Association* Convention of Scottish Local Authorities National Federation of Building Trades C
7、opper Development Association* Employers Council of British Ceramic Sanitaryware National Water Council* Manufacturers* Royal Institute of British Architects Department of the Environment Building Royal Society of Health Research Establishment Scottish Development Department Department of the Enviro
8、nment Housing Trades Union Congress and Construction Water Companies Association* Department of the Environment (PSA)* Department of the Environment Water Engineering Division including Water Data Unit* Association of Gas Equipment Manufacturers Institution of Municipal Engineers and Contractors Ins
9、titution of Production Engineers Association of Manufacturers of Domestic National Association of Plumbing, Heating and Electrical Appliances Mechanical Services Contractors BNF Metals Technology Centre Plastics Bath Manufacturers Association British Bath Manufacturers Association South London Conso
10、rtium British Valve Manufacturers Association Thames Water Authority Metropolitan Copper Tube Fittings Manufacturers Water Division Association Water Research Centre Department of Prices and Consumer Protection Metrology Quality Assurance and Standards Division Amendments issued since publication Am
11、d. No. Date of issue CommentsBS5779:1979 BSI 12-1999 i Contents Page Cooperating organizations Inside front cover Foreword ii Section 1. General 1 Scope 1 2 References 1 3 Definitions 1 4 Materials 1 5 Marking 2 Section 2. Dimensions, design and construction 6 General 2 7 Nominal size 2 8 Inlets 2 9
12、 Spray outlet 2 10 Flow restrictor 2 Section 3. Type testing 11 General 2 12 Rate of flow test 4 13 Test for divergence of the spray 4 14 Sensitivity of control of single control type spray mixing taps 4 15 Devices to prevent cross tracking intercommunication of supply systems 5 16 Blended water tem
13、perature extremes 5 Appendix A Notes on the installation of spray mixing taps 7 Appendix B Types of spray mixing taps with reference to relevant clauses 7 Appendix C Information to be supplied by the purchaser 7 Appendix D Method of setting manually adjustable restrictors 7 Appendix E Method of meas
14、uring the rate of flow through spray mixing taps fitted with manually adjustable flow restrictors 9 Appendix F Method of measuring the rate of flow through spray mixing taps fitted with self-adjusting restrictors 10 Appendix G Method of measuring the divergence of the spray 11 Appendix H Method for
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