EN 1287-2017 en Sanitary tapware - Low pressure thermostatic mixing valves - General technical specification.pdf

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1、Sanitary tapware Low pressure thermostatic mixing valves General technical specificationBS EN 1287:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1287 August 2017 ICS 91.140.70 Supersedes EN 1287:1999English V

2、ersion Sanitary tapware - Low pressure thermostatic mixing valves - General technical specification Robinetterie sanitaire - Mitigeurs thermostatiques basse pression - Spcifications techniques gnrales Sanitrarmaturen - Thermostatische Mischer fr die Anwendung im Niederdruckbereich - Allgemeine techn

3、ische Spezifikation This European Standard was approved by CEN on 24 April 2017. CEN members 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 b

4、ibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC 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 res

5、ponsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav R

6、epublic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROP

7、EN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1287:2017 ENational forewordThis British Standard is the UK im

8、plementation of EN 1287:2017. It supersedes BS EN 1287:1999, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee B/504, Water supply.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not

9、 purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 89902 7ICS 91.140.70Compliance with a British Standard cannot confer immunity from legal obl

10、igations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 1287:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1287 August 2017 IC

11、S 91.140.70 Supersedes EN 1287:1999English Version Sanitary tapware - Low pressure thermostatic mixing valves - General technical specification Robinetterie sanitaire - Mitigeurs thermostatiques basse pression - Spcifications techniques gnrales Sanitrarmaturen - Thermostatische Mischer fr die Anwend

12、ung im Niederdruckbereich - Allgemeine technische Spezifikation This European Standard was approved by CEN on 24 April 2017. CEN members 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 wi

13、thout any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any othe

14、r language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic,

15、Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPE

16、AN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1287:2017 EBS EN 1

17、287:2017EN 1287:2017 (E) 2 Contents PageEuropean Foreword 6 Introduction 7 1 Scope 8 2 Normative references 8 3 Terms and definitions . 9 4 Symbols and units 10 5 Classification 11 6 Designation. 11 7 Marking/identification 12 7.1 Marking 12 7.2 Identification . 12 8 Materials 12 8.1 Chemical and hy

18、giene requirements 12 8.2 Exposed surface condition and quality of coating 12 9 Dimensional characteristics. 12 9.1 General remarks . 12 9.2 Inlet dimensions . 12 9.3 Outlet dimensions 15 9.4 Mounting dimensions . 17 9.5 Special cases . 20 9.6 Flexible hoses for outlet 2 . 20 9.7 Outlet 2 . 20 10 Ba

19、ckflow protection 20 11 Test sequence 21 12 Leaktightness . 21 12.1 General . 21 12.1.1 Principle 21 12.1.2 Apparatus 21 12.2 Leaktightness of the obturator and upstream . 21 12.2.1 General . 21 12.2.2 Procedure 21 12.2.3 Requirements 21 12.3 Cross-flow between inlets . 22 12.3.1 General . 22 12.3.2

20、 Procedure 22 12.3.3 Requirements 22 12.4 Leaktightness downstream of the obturator . 22 12.4.1 Procedure 22 12.4.2 Requirements 22 12.5 Leaktightness of manually operated diverter . 22 12.5.1 Procedure 22 12.5.2 Requirement 23 BS EN 1287:2017EN 1287:2017 (E) 3 12.6 Leaktightness of diverter with au

21、tomatic return . 23 12.6.1 Procedure 23 12.6.2 Requirement . 23 13 Performance . 23 13.1 General . 23 13.1.1 Initial settings 23 13.1.2 Apparatus 24 13.1.3 Procedure 24 13.2 Determination of flow rate 25 13.2.1 Principle . 25 13.2.2 Procedure 25 13.2.3 Evaluation of the results 25 13.2.4 Requirement

22、s . 25 13.3 Sensitivity 26 13.3.1 General . 26 13.3.2 Principle . 26 13.3.3 Procedure 26 13.3.4 Evaluation of results 26 13.3.5 Requirements . 27 13.4 Fidelity 28 13.4.1 General . 28 13.4.2 Principle . 28 13.4.3 Procedure 28 13.4.4 Evaluation of results 28 13.4.5 Requirements . 28 13.5 Temperature s

23、tability . 29 13.5.1 Temperature control operation 29 13.5.2 Flow rate reduction 29 13.5.3 Cold supply failure and restoration . 30 13.5.4 Supply pressure variation . 31 13.5.5 Supply temperature variation . 32 13.5.6 Temperature override stops 32 14 Pressure resistance 33 14.1 General . 33 14.2 App

24、aratus 33 14.3 Testing of mechanical performance of the thermostatic mixing valve upstream of the obturator in the closed position 33 14.3.1 Procedure 33 14.3.2 Requirement . 33 14.4 Mechanical behaviour downstream of the obturator Obturator in the open position 34 14.4.1 Procedure 34 14.4.2 Require

25、ment . 34 15 Torsional resistance of the operating controls 34 15.1 General . 34 15.2 Test method 34 15.2.1 Principle . 34 15.2.2 Apparatus 34 15.2.3 Procedure 34 15.2.4 Requirements . 35 16 Mechanical endurance characteristics . 35 16.1 General . 35 BS EN 1287:2017EN 1287:2017 (E) 4 16.2 Endurance

26、test for single sequential control device . 35 16.2.1 Principle 35 16.2.2 Apparatus 35 16.2.3 Procedure 36 16.2.4 Requirement 36 16.3 Endurance test for on/off flow control device operated by rotating the control handle . 36 16.3.1 Principle 36 16.3.2 General . 36 16.4 Endurance test for on/off flow

27、 control device, combined with diverter mechanism . 36 16.4.1 Principle 36 16.4.2 Apparatus 36 16.4.3 Procedure 37 16.4.4 Requirement 37 16.5 Endurance test for other on-off flow control device . 37 16.5.1 Principle 37 16.5.2 Apparatus 37 16.5.3 Procedure 37 16.5.4 Requirement 38 16.6 Mechanical end

28、urance of diverters of thermostatic mixing valves . 38 16.6.1 General . 38 16.6.2 Test method . 38 16.6.3 Requirements 39 16.7 Mechanical endurance of swivel of spouts 40 16.7.1 General . 40 16.7.2 Test method . 40 16.7.3 Requirements 40 16.8 Thermal element 40 16.8.1 Principle 40 16.8.2 Temperature

29、 adjustable valves, (Type 1, 2, 4) 41 16.8.3 Temperature set valves (Type 5) . 41 16.8.4 Other valves with special control devices (Type 6) . 42 Annex A (normative) Test set-up descriptions . 43 A.1 General . 43 A.2 Inlet pipework . 43 A.2.1 Thermostat endurance. 43 A.2.2 Performance 44 A.3 Outlet p

30、ipework 44 A.3.1 General . 44 A.3.2 Outlet for valves except without integral atmospheric discharge spouts . 44 Annex B (normative) Measurements . 48 B.1 Pressure . 48 B.2 Flow . 48 B.3 Temperature 48 B.3.1 Mounting . 48 B.3.2 Accuracy 48 BS EN 1287:2017EN 1287:2017 (E) 5 B.3.3 Response time 48 B.4

31、Angular position 48 B.5 Duration of transients . 48 Annex C (informative) Temperature transit 51 C.1 Positive temperature transient . 51 C.2 Negative temperature transient 52 Annex D (normative) Hydraulic resistance for low pressure diverters with automatic return 53 Bibliography . 55 BS EN 1287:201

32、7EN 1287:2017 (E) 6 European Foreword This document (EN 1287:2017) 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

33、endorsement, at the latest by February 2018, and conflicting national standards shall be withdrawn at the latest by February 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying a

34、ny or all such patent rights. This document supersedes EN 1287:1999. The main technical changes compared to the previous version are the following: a) the introduction of Clause 10 on backflow protection;b) the introduction of Clause 11 on test sequence;c) the introduction of Clause 13 on performanc

35、e;d) the update of clauses on pressure resistance, torsional resistance and mechanical resistance;e) new Annexes A, B, C and D.According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Be

36、lgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Swed

37、en, Switzerland, Turkey and the United Kingdom. BS EN 1287:2017EN 1287:2017 (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 standard, the following should be noted: This standard provides no info

38、rmation as to whether the product can be used without restriction in any of the Member state 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 this product remain in

39、force. BS EN 1287:2017EN 1287:2017 (E) 8 1 Scope This European Standard specifies general construction, performance and material requirements for PN 10 thermostatic mixing valves (TMV) and includes test methods for the verification of mixed water temperature performance at the point of use below 45

40、C. This does not exclude the selection of higher temperatures where available. When these devices are used to provide anti-scald protection for children, elderly and disabled persons the mixed water temperature needs to be set at a suitable bathing temperature (body temperature 38 C) as children are

41、 at risk to scalding at lower temperatures than adults. This does not obviate the need for supervision of young children during bathing. It applies to valves intended for use on sanitary appliances in kitchens, washrooms (incl. all rooms with sanitary tapware, e.g. toilet and cloakrooms) and bathroo

42、ms operating under the conditions specified in Table 1. This standard allows TMVs to supply a single outlet or a small number of outlets in a “domestic” application (e.g. one valve, controlling a shower, bath, basin and/or, bidet), excluding valves specifically designed for supplying a large number

43、of outlets (i.e. for institutional use). The tests described are type tests (laboratory tests) and not quality control tests carried out during manufacture. Table 1 Conditions of use Supply Operating range aPressure limits recommended Static 1 MPa 10 bar Dynamic 0,01 MPa 0,1 bar (0,02 to 0,1) MPa (0

44、,2 to 1,0) bar Temperature Hot 90 C (55 to 65) C Cold 25 C (5 to 20) C aFor low pressure thermostatic mixing valves complying with this table there are no acoustical requirements. Low pressure thermostatic mixing valves complying with this standard may also be used with inlet supply pressures in the

45、 range from 0,1 MPa to 0,2 MPa (1,0 bar to 2,0 bar) on condition that acoustical performance is not a requirement of the installation. NOTE Low pressure thermostatic mixing valves are designed to provide sufficient mechanical strength for operation at 1 MPa (10 bar) static pressure. 2 Normative refe

46、rences The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

47、EN 200, Sanitary tapware - Single taps and combination taps for water supply systems of type 1 and type 2 - General technical specification EN 246, Sanitary tapware - General specifications for flow rate regulators EN 248, Sanitary tapware - General specification for electrodeposited coatings of Ni-

48、Cr BS EN 1287:2017EN 1287:2017 (E) 9 EN 1057, Copper and copper alloys Seamless, round copper tubes for water and gas in sanitary and heating applications EN 1112, Sanitary tapware - Shower outlets for sanitary tapware for water supply systems of type 1 and type 2 - General technical specification E

49、N 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 prevent pollution by backflow EN 13618, Flexible hose assemblies in drinking water installations - Functional requirements and test methods EN 13959, Anti-pollution check valves - DN 6 to DN 250 inclusive family E, type A, B, C and D EN 14506, Devices to prevent pollution by bac