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1、BS EN 817:2008 ICS 91.140.70, NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BRITISH STANDARD Sanitary tapware Mechanical mixing valves (PN 10) General technical specifications Incorporating Corrigendum January 2009 Licensed copy: The University of Hong Kong, The University o
2、f Hong Kong, Version correct as of 18/04/2009 01:54, (c) BSI This British Standard was published under the authority of the Standards Policy and Strategy Committee on 3 ember 2008 BSI 2009 ISBN 978 0 580 66666 7 Amendments/corrigenda issued since publication DateComments BS EN 817:2008 National fore
3、word This British Standard is the UK implementation of EN 817:2008. It supersedes BS EN 817:1998 and which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee B/504/8, Sanitary tapware. A list of organizations represented on this committee can be obtained on re
4、quest to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. 1 Dec 31 200 Correction to low resolution 9January ima
5、ges Licensed copy: The University of Hong Kong, The University of Hong Kong, Version correct as of 18/04/2009 01:54, (c) BSI BS EN 817:2008 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 817 June 2008 ICS 91.140.70Supersedes EN 817:1997 English Version Sanitary tapware - Mechanical mixing valv
6、es (PN 10) - General technical specifications Robinetterie sanitaire - Mitigeurs mcaniques (PN 10) - Spcifications techniques gnrales Sanitrarmaturen - Mechanisch einstellbare Mischer (PN 10) - Allgemeine technische Spezifikation This European Standard was approved by CEN on 29 May 2008. CEN members
7、 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 references concerning such national standards may be obtained on application
8、to the CEN Management Centre 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 its own language and notified to the CEN Management Centre has the
9、same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal
10、, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CENAll rights of exploitation in any form and by any means re
11、served worldwide for CEN national Members. Ref. No. EN 817:2008: E Licensed copy: The University of Hong Kong, The University of Hong Kong, Version correct as of 18/04/2009 01:54, (c) BSI BS EN 817:2008 EN 817:2008 (E) 2 Contents page Foreword6 Introduction.7 1 Scope 8 2 Normative references10 3 Ter
12、ms, definitions and designation.10 3.1 Terms and definitions .10 3.2 Designation 11 4 Marking and identification11 4.1 Marking.11 4.2 Identification.12 5 Materials .12 5.1 Chemical and hygiene requirements.12 5.2 Exposed surface conditions.12 6 Dimensional characteristics.12 6.1 General remarks.12 6
13、.2 Inlet dimensions.12 6.3 Outlet dimensions17 6.4 Mounting dimensions19 6.5 Special cases .20 6.6 Flexible hoses for shower outlets20 6.7 Shower outlets.20 7 Sequence of testing.21 8 Leaktightness characteristics21 8.1 General21 8.2 Test methods21 8.3 Leaktightness of the obturator and of the mixin
14、g valve upstream of the obturators with the obturator in the closed position.22 8.4 Leaktightness of the mixing valve downstream of the obturator with the obturator open .22 8.5 Leaktightness of manually operated diverter.22 8.6 Leaktightness and operation of diverter with automatic return.23 8.7 Le
15、aktightness of the obturator: cross flow between hot water and cold water24 9 Pressure resistance characteristics mechanical performance under pressure26 9.1 General26 9.2 Principle26 9.3 Apparatus.26 9.4 Mechanical behaviour upstream of the obturator obturator in the closed position26 9.5 Mechanica
16、l behaviour downstream of the obturator obturator in the open position .26 10 Hydraulic characteristics27 10.1 General27 10.2 Initial settings.27 10.3 Principle28 10.4 Apparatus.28 10.5 Procedure.28 10.6 Determination of flow rate 29 10.7 Determination of sensitivity30 11 Mechanical strength charact
17、eristics - torsion test for operating mechanism 33 Licensed copy: The University of Hong Kong, The University of Hong Kong, Version correct as of 18/04/2009 01:54, (c) BSI w w w . b z f x w . c o m BS EN 817:2008 EN 817:2008 (E) 3 11.1 General33 11.2 Test method .33 12 Mechanical endurance character
18、istics34 12.1 Mechanical endurance of the control device34 12.2 Mechanical endurance of diverters .38 12.3 Mechanical endurance of swivel spouts.40 13 Backflow protection 41 14 Acoustic characteristics.41 14.1 General41 14.2 Procedure.41 14.3 Requirements.41 Annex A (informative) Apparatus 43 Annex
19、B (informative) Pressure take-off tee.47 Bibliography50 Licensed copy: The University of Hong Kong, The University of Hong Kong, Version correct as of 18/04/2009 01:54, (c) BSI w w w . b z f x w . c o m BS EN 817:2008 EN 817:2008 (E) 4 Figures Figure 1 Supply system with a pressure range of (0,05 to
20、 1,0) MPa (0,5 to 10) bar.9 Figure 2 Flexible hoses and plain tube.14 Figure 3 Multi-hole mechanical mixing valve.15 Figure 4 Supply connections for mechanical mixing valve and remote outlets 16 Figure 5 Remote outlet .18 Figure 6 Single hole mechanical mixing valve.18 Figure 7 Two hole mechanical m
21、ixing valve 18 Figure 8 Single hole mechanical mixing valve.19 Figure 9 Two hole mechanical mixing valve 20 Figure 10 Sensitivity curve.31 Figure 11 Radius for the determination of sensitivity.32 Figure 12 Rectangular movement .34 Figure 13 Triangular movement.35 Figure 14 Test bench adjustment torq
22、ue for conventionnal mixing valve37 Figure 15 Test bench adjustment torque for joystick mixing valve.37 Figure 16 Test bench adjustment torque for sequential mixing valve37 Figure A 1 Supply circuits43 Figure A 2 Test circuit.45 Figure A 3 Mounting of the mixing valve46 Figure B 1 Pressure take-off
23、tee47 Figure B 2 Schematic examples of pressure take-off tees .48 Licensed copy: The University of Hong Kong, The University of Hong Kong, Version correct as of 18/04/2009 01:54, (c) BSI w w w . b z f x w . c o m BS EN 817:2008 EN 817:2008 (E) 5 Tables Table 1 Conditions of use/Classifications8 Tabl
24、e 2 Designation 11 Table 3 Inlet dimensions (mechanical mixing valve).13 Table 4 Outlet dimensions (Remote outlets, mechanical mixing valve) .17 Table 5 Mounting dimensions (Outlets, single- and multi-hole mechanical mixing valve).19 Table 6 Test Sequence .21 Table 7 Summary of leaktightness tests 2
25、5 Table 8 Summary of pressure resistance characteristic tests.27 Table 9 Initial Settings27 Table 10 Flow rates according to application.29 Table 11 Performance levels30 Table 12 Summary of test conditions for cartridges .35 Table 13 Summary of test conditions for diverters39 Table 14 Flow rate clas
26、ses (EN ISO 3822-4 Annex A)41 Table 15 Acoustic group.42 Table A 1 Connecting dimension 45 Table B 1 Dimensions of the pressure take-off tee .47 Licensed copy: The University of Hong Kong, The University of Hong Kong, Version correct as of 18/04/2009 01:54, (c) BSI w w w . b z f x w . c o m BS EN 81
27、7:2008 EN 817:2008 (E) 6 Foreword This document (EN 817:2008) has been prepared by Technical Committee CEN/TC 164 “Water supply”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endor
28、sement, at the latest by December 2008, and conflicting national standards shall be withdrawn at the latest by December 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for ide
29、ntifying any or all such patent rights. This document supersedes EN 817:1997. This European Standard acknowledges the field of application for mechanical mixing valves used in water supply systems with a pressure range of (0,05 to 1,0) MPa (0,5 bar to 10 bar). According to the CEN/CENELEC Internal R
30、egulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, N
31、etherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed copy: The University of Hong Kong, The University of Hong Kong, Version correct as of 18/04/2009 01:54, (c) BSI w w w . b z f x w . c o m BS EN 817:2008 EN 817:2008 (E) 7 In
32、troduction In respect of potential adverse effects on the quality of water intended for human consumption, caused by the product covered by this European Standard. This European Standard provides no information as to whether the product can be used without restriction in any of the Member States of
33、the EU or EFTA. It should be noted that, while awaiting the adoption of verifiable European criteria, existing national regulations concerning the use and/or the characteristics of these products remain in force. This document identifies characteristics and technical requirements for mechanical mixi
34、ng valves. Licensed copy: The University of Hong Kong, The University of Hong Kong, Version correct as of 18/04/2009 01:54, (c) BSI w w w . b z f x w . c o m BS EN 817:2008 EN 817:2008 (E) 8 1 Scope This European Standard specifies: the dimensional, leaktightness, pressure resistance, hydraulic perf
35、ormance, mechanical strength, endurance and acoustic characteristics with which mechanical mixing valves need to comply; test methods to verify the characteristics. The tests described in this European Standard are type tests (laboratory tests) and not quality control tests carried out during manufa
36、cture. This European Standard applies to PN 10 mechanical mixing valves for use with sanitary appliances installed in rooms used for bodily hygiene (cloakrooms, bathrooms, etc.) and in kitchens, i.e. for use with baths, wash basins, bidets, showers and sinks. The conditions of use and classification
37、s are given in 0. Table 1 Conditions of use/classifications Operating range of mechanical mixing valves Flow rate classes Acoustics Marking Water supply system Limits Recommended See 0 See Clause 14 See Clause 4 Pressure Dynamic pressure 0,05 MPa (0,5 bar) Static pressure 1,0 MPa (10,0 bar) Dynamic
38、pressure (0,1 to 0,5) MPa (1,0 to 5,0) bar Z 0,15 l/s A 0,25 l/s S 0,33 l/s B 0,42 l/s C 0,50 l/s D 0,63 l/s Group I - Group II unclassified for example IA IIC / B I /- a II /- a Temperature 90 C 65 C a Without flow rate class: mechanical mixing valves without interchangeable outlet accessories are
39、tested with the original outlet accessories of the manufacturer and are not marked with a flow rate class. NOTE Mechanical mixing valves for use at pressures lower than those in Table 1 are covered by EN 1286. Licensed copy: The University of Hong Kong, The University of Hong Kong, Version correct a
40、s of 18/04/2009 01:54, (c) BSI BS EN 817:2008 EN 817:2008 (E) 9 Key 1 cold water 2 hot water 3 mains supply pipe (supply pressures up to 10 bar) 4 water heater Figure 1 Supply system with a pressure range of (0,05 to 1,0) MPa (0,5 to 10) bar Licensed copy: The University of Hong Kong, The University
41、 of Hong Kong, Version correct as of 18/04/2009 01:54, (c) BSI BS EN 817:2008 EN 817:2008 (E) 10 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest
42、edition of the referenced document (including any amendments) applies. EN 246, Sanitary tapware General specifications for flow rate regulators EN 248, Sanitary tapware General specification for electrodeposited coatings of Ni-Cr EN 1112, Sanitary tapware Shower outlets for sanitary tapware for wate
43、r supply systems of type 1 and type 2 General technical specification EN 1113, Sanitary tapware Shower hoses for sanitary tapware for water supply systems of type 1 and type 2 General technical specification EN 1717, Protection against pollution of potable water in water installations and general re
44、quirements of devices to prevent pollution by backflow prEN 13618-1, Hose assembly Flexible hose assembly Part 1: Product standard for flexible hose assembly (with or without braiding) prEN 13618-2, Water supply Hose assembly Part 2: Semi-rigid hose assembly EN 14506, Devices to prevent pollution by
45、 backflow of potable water Automatic diverter Family H, type C EN ISO 228-1, Pipe threads where pressure tight joints are not made on the threads Part 1: Dimensions, tolerances and designation (ISO 228-1:2000) EN ISO 3822-1, Acoustics Laboratory tests on noise emission from appliances and equipment
46、used in water supply installations Part 1: Method of measurement (ISO 3822-1:1999) EN ISO 3822-2, Acoustics Laboratory tests on noise emission from appliances and equipment used in water supply installations Part 2: Mounting and operating conditions for draw-off taps and mixing valves (ISO 3822-2:19
47、95) EN ISO 3822-4:1997, Acoustics Laboratory tests on noise emission from appliances and equipment used in water supply installations Part 4: Mounting and operating conditions for special appliances (ISO 3822-4:1997) 3 Terms, definitions and designation 3.1 Terms and definitions For the purpose of t
48、his document, the following term and definition applies. mechanical mixing valve valve which mixes hot and cold water and which, by means of a control device, allows the user to adjust between all cold water and all hot water, which implies the flow rate of the mixture obtained may be adjusted betwe
49、en no flow and maximum flow using either the same control device or another separate control device Licensed copy: The University of Hong Kong, The University of Hong Kong, Version correct as of 18/04/2009 01:54, (c) BSI BS EN 817:2008 EN 817:2008 (E) 11 3.2 Designation Mechanical mixing valves covered by this European Standard are designated by the characteristics identified in 0. Table 2 Designation Tapware according to application (see 0) Type of valve Mechanical mixing v