1、BS EN 817:2008ICS 91.140.70,NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDSanitary tapware Mechanical mixingvalves (PN 10) General technicalspecificationsIncorporating Corrigendum January 2009This British Standardwas published under the authority of theStandar
2、ds Policy andStrategy Committee on 3ember 2008 BSI 2009ISBN 978 0 580 66666 7 Amendments/corrigenda issued since publicationDate CommentsBS EN 817:2008National forewordThis British Standard is the UK implementation of EN 817:2008. Itsupersedes BS EN 817:1998 and which is withdrawn.The UK participati
3、on in its preparation was entrusted to TechnicalCommittee B/504/8, Sanitary tapware.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its c
4、orrect application.Compliance with a British Standard cannot confer immunityfrom legal obligations.1Dec 31 200 Correction to low resolution 9January images BS EN 817:2008EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 817June 2008ICS 91.140.70 Supersedes EN 817:1997 English VersionSanitary tapware
5、 - Mechanical mixing valves (PN 10) - Generaltechnical specificationsRobinetterie sanitaire - Mitigeurs mcaniques (PN 10) -Spcifications techniques gnralesSanitrarmaturen - Mechanisch einstellbare Mischer (PN10) - Allgemeine technische SpezifikationThis European Standard was approved by CEN on 29 Ma
6、y 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained
7、 on application 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management C
8、entre has the same status as theofficial 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, Polan
9、d, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any m
10、eans reservedworldwide for CEN national Members.Ref. No. EN 817:2008: EBS EN 817:2008EN 817:2008 (E) 2 Contents page Foreword6 Introduction .7 1 Scope 8 2 Normative references 10 3 Terms, definitions and designation .10 3.1 Terms and definitions .10 3.2 Designation 11 4 Marking and identification 11
11、 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 6.2 Inlet dimensions.12 6.3 Outlet dimensions17 6.4 Mounting dimensions19 6.5 Special cases .20 6.6 Flexible hose
12、s for shower outlets20 6.7 Shower outlets .20 7 Sequence of testing.21 8 Leaktightness characteristics 21 8.1 General21 8.2 Test methods21 8.3 Leaktightness of the obturator and of the mixing valve upstream of the obturators with the obturator in the closed position.22 8.4 Leaktightness of the mixin
13、g 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 Leaktightness of the obturator: cross flow between hot water and cold water24 9 Pressure resistance characteri
14、stics mechanical performance under pressure 26 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 Mechanical behaviour downstream of the obturator obturator in the open position .26 10 Hydraulic characteristics 27
15、 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 characteristics - torsion test for operating mechanism 33 BS EN 817:2008EN 817:2008 (E) 3 11.1 General33 11.2
16、Test method .33 12 Mechanical endurance characteristics34 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 Requir
17、ements.41 Annex A (informative) Apparatus 43 Annex B (informative) Pressure take-off tee.47 Bibliography50 BS EN 817:2008EN 817:2008 (E) 4 Figures Figure 1 Supply system with a pressure range of (0,05 to 1,0) MPa (0,5 to 10) bar.9 Figure 2 Flexible hoses and plain tube.14 Figure 3 Multi-hole mechani
18、cal 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 mixing valve 18 Figure 8 Single hole mechanical mixing valve.19 Figure 9 Two hole mechanical mixin
19、g 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 torque for conventionnal mixing valve37 Figure 15 Test bench adjustment torque for joystick mixing v
20、alve.37 Figure 16 Test bench adjustment torque for sequential mixing valve 37 Figure A 1 Supply circuits 43 Figure A 2 Test circuit.45 Figure A 3 Mounting of the mixing valve 46 Figure B 1 Pressure take-off tee 47 Figure B 2 Schematic examples of pressure take-off tees .48 BS EN 817:2008EN 817:2008
21、(E) 5 Tables Table 1 Conditions of use/Classifications8 Table 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
22、6 Test Sequence .21 Table 7 Summary of leaktightness tests 25 Table 8 Summary of pressure resistance characteristic tests.27 Table 9 Initial Settings 27 Table 10 Flow rates according to application.29 Table 11 Performance levels 30 Table 12 Summary of test conditions for cartridges .35 Table 13 Summ
23、ary of test conditions for diverters39 Table 14 Flow rate classes (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 BS EN 817:2008EN 817:2008 (E) 6 Foreword This document (EN 817:2008) has been prepared by Tec
24、hnical 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 endorsement, at the latest by December 2008, and conflicting national standards shall be wi
25、thdrawn 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 identifying any or all such patent rights. This document supersedes EN 817:1997. This Eur
26、opean 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 Regulations, the national standards organizations of the following countries are bound
27、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, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Swit
28、zerland and the United Kingdom. BS EN 817:2008EN 817:2008 (E) 7 Introduction 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 produ
29、ct can be used without restriction in any of the Member States of 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 identif
30、ies characteristics and technical requirements for mechanical mixing valves. BS EN 817:2008EN 817:2008 (E) 8 1 Scope This European Standard specifies: the dimensional, leaktightness, pressure resistance, hydraulic performance, mechanical strength, endurance and acoustic characteristics with which me
31、chanical 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 manufacture. This European Standard applies to PN 10 mechanical mixing valves for use wi
32、th 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 classifications are given in 0. Table 1 Conditions of use/classifications Operating range of mec
33、hanical mixing valves Flow rate classes Acoustics Marking Water supply system Limits Recommended See 0 See Clause 14 See Clause 4Pressure Dynamic pressure 0,05 MPa (0,5 bar) Static pressure 1,0 MPa (10,0 bar) Dynamic 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
34、l/s C 0,50 l/s D 0,63 l/s Group I - Group II unclassified for example IA IIC / B I /- aII /- aTemperature 90 C 65 CaWithout flow rate class: mechanical mixing valves without interchangeable outlet accessories are tested with the original outlet accessories of the manufacturer and are not marked with
35、 a flow rate class. NOTE Mechanical mixing valves for use at pressures lower than those in Table 1 are covered by EN 1286. BS EN 817:2008EN 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 (
36、0,05 to 1,0) MPa (0,5 to 10) bar BS EN 817:2008EN 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 edition of the referenced docum
37、ent (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 water supply systems of type 1 and
38、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 requirements of devices to preven
39、t 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 backflow of potable water Auto
40、matic 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 used in water supply installati
41、ons 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 3822-2:1995) EN ISO 3822-4:1997, Acousti
42、cs 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 this document, the following ter
43、m 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 between no flow and maximum flow usi
44、ng either the same control device or another separate control device BS EN 817:2008EN 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
45、 valve Mechanical mixing valve Intended use Basin, bidet, sink, bath or shower Mounting method Horizontal or vertical surfaces Body Single or multi-hole, visible, or concealed Diverter With or without diverter Type of outlet Fixed, moveable, divided outlet spout, with or without flow rate regulator
46、Acoustic group and classification Group I, or group II, or unclassified Water saving properties Yes / no Flow rate class Z, A, S, B, C, D Reference to this European Standard EN 817 Example of designation: Mechanical mixing valve for bath/shower, 2-hole with combined visible body, mounting on horizon
47、tal surface, diverter, fixed outlet, flow rate classes C/B, with acoustic group I, EN 817. 4 Marking and identification 4.1 Marking Mechanical mixing valves shall be marked permanently and legibly with: the manufacturers or agents name or identification - on the body or handle; the manufacturers nam
48、e or identification - on the cartridge (not applicable when the cartridge is of special design to suit the body); the acoustic group (see 0) and the flow rate class(es) (see 0), if applicable - on the body. For water saving mixing valves, appropriate information to installers and users shall be prov
49、ided. NOTE In the case of bath/shower mixing valves, the flow rate is indicated by the first letter for the bath outlet and by the second letter for the shower outlet. Examples of marking: Name or identification and IA, or IIA (acoustic group and flow rate class(es) Name or identification and I/-, or II/- (acoustic group, without flow rate class(es) BS EN 817:2008EN 817:2008 (E) 12 Name or identification and IC/A, or IIC/A (bath/shower tap; the first letter for the bath ou
