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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1287:1999 Incorpora
2、ting Corrigendum No. 1 The European Standard EN 1287:1999 has the status of a British Standard ICS 91.140.70 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Sanitary tapware Low pressure thermostatic mixing valves General technical specifications Licensed Copy: :FULLNAME, : DA
3、TE, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 15 September 1999 BSI 06-2000 ISBN 0 580 32599 7 BS EN 1287
4、:1999 Amendments issued since publication Amd. No.DateComments 10964 corrigendum No. 1 June 2000New Figure 6 National foreword This British Standard is the English language version of EN 1287:1999. It supersedes BS 1415-2:1986 which is withdrawn. The UK participation in its preparation was entrusted
5、 by Technical Committee B/504, Water supply, to Subcommittee B/504/8, Terminal fittings, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests inform
6、ed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to i
7、n this document may be found in the BSI Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Use
8、rs of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 34, an inside back cover a
9、nd a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secre
10、tariat: rue de Stassart 36, B-1050 Brussels 1999 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1287:1999 E EUROPEAN STANDARDEN 1287 NORME EUROPE ENNE EUROPA ISCHE NORM April 1999 ICS 91.140.70 English version Sanitary tapware Low
11、 pressure thermostatic mixing valves General technical specifications Robinetterie sanitaire Mitigeurs thermostatiques basse pression Spe cifications techniques ge ne rales Sanita rarmaturen Themostatische Mischer fu r die Anwendung im Niederdruckbereich Allgemeine technische Spezifikation This Euro
12、pean Standard was approved by CEN on 1 April 1999. 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 bibliographical references conc
13、erning such national standards may be obtained on application to the Central Secretariat 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
14、 language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Swe
15、den, Switzerland and United Kingdom. Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI Page 2 EN 1287:1999 BSI 06-2000 Foreword This European Standard has been prepared by Technical Committee CEN/TC 164, Water supply, the Secretariat of which is held by AFNOR. This European Standard shall
16、 be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 1999, and conflicting national standards shall be withdrawn at the latest by October 1999. According to the CEN/CENELEC Internal Regulations, the national standards org
17、anizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Forew
18、ord2 Introduction3 1Scope3 2Normative references3 3Definition4 4Classification4 5Designation4 6Marking Identification4 6.1 Marking4 6.2 Identification4 7Materials4 7.1 Chemical and hygienic characteristics4 7.2 Exposed surface condition and quality of coating4 8Dimensional characteristics5 8.1 Gener
19、al comment on drawings5 8.2 Thermostatic mixing valves mounted on horizontal surfaces5 8.3 Thermostatic mixing valves mounted on vertical surfaces13 8.4 Dimensions of water outlets16 8.5 Special cases17 9Leaktightness characteristics17 9.1 General17 9.2 Test methods17 9.3 Leaktightness of the thermo
20、static mixing valve upstream of the obturator and of the obturator17 9.4 Leaktightness of the obturator of the thermostatic mixing valve Cross-flow between hot and cold water19 9.5 Leaktightness of the thermostatic mixing valve downstream of the obturator19 Page 9.6 Leaktightness of the manual diver
21、ter of the thermostatic mixing valve19 9.7 Leaktightness of the thermostatic mixing valve diverter with automatic return19 9.8 Summary of requirements21 10Hydraulic operating characteristics21 10.1 General21 10.2 Test method21 10.3 Apparatus21 10.4 Mounting and initial set up procedure22 10.5 Determ
22、ination of flow rate22 10.6 Sensitivity23 10.7 Test for safety with cold water failure23 10.8 Test for temperature stability with changing inlet pressure24 10.9 Test for temperature stability with changing inlet temperature25 11Mechanical performance under pressure25 11.1 General25 11.2 Apparatus25
23、11.3 Testing of mechanical performance of the thermostatic mixing valve upstream of the obturator Obturator in the closed position25 11.4 Testing of mechanical performance of the thermostatic mixing valve downstream of the obturator Obturator in the open position25 12Mechanical endurance characteris
24、tics26 12.1 General26 12.2 Endurance (life) test for other on off flow control device of thermostatic mixing valves26 12.3 Mechanical endurance of diverters26 12.4 Mechanical endurance of swivel nozzles27 13Torsional resistance characteristics of the operating control28 13.1 General28 13.2 Test meth
25、od28 14Protection against pollution of drinking water28 Annex A (normative) Design of reducing adaptors29 Annex B (normative) Examples of pressure take-off tees30 Annex C (informative) Low hydraulic resistance fittings32 Annex D (informative) Summary of leaktightness tests33 Licensed Copy: :FULLNAME
26、, : DATE, Uncontrolled Copy, (c) BSI w w w . b z f x w . c o m Page 3 EN 1287:1999 BSI 06-2000 Table 1 Conditions for the use of low pressure thermostatic mixing valves Limits of useRecommended limits for correct operation Dynamic pressure0,01 to 0,1 MPa (0,1 to 1 bar) 0,02 MPa # P # 0,1 MPa (0,2 ba
27、r # P # 1,0 bar) Hot water temperatureT # 90 8C55 8C # T # 65 8C Cold water temperatureT # 25 8CT # 25 8C Mechanical strength1)static pressure = 1 MPa (10 bar) For low pressure thermostatic mixing valves complying with this table there are no acoustical requirements. Low pressure thermostatic mixing
28、 valves complying with this standard may also be used with inlet supply pressures in the 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. 1) NOTELow pressure thermostatic mixing valves are designed to provide suffic
29、ient mechanical strength for operation at 1 MPa (10 bar) static pressure. Introduction In respect of potential adverse effects on the quality of water intended for human consumption, caused by the product covered by this standard. 1) This standard provides no information as to whether the product ma
30、y be used without restriction in any of the Member states of the EU or EFTA. 2) 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 force. 1 Scope This European Sta
31、ndard specifies requirements for low hydraulic resistance thermostatic mixing valves suitable for use in low pressure water supply systems as described in informative annex C. This European Standard specifies: the dimensional, leaktightness, mechanical and hydraulic performance and mechanical endura
32、nce characteristics with which low pressure thermostatic mixing valves shall comply; the procedures for testing these characteristics. It is applicable: to low pressure thermostatic mixing valves intended for use on sanitary appliances in washrooms (toilets, bathrooms etc.) and in kitchens; to low p
33、ressure thermostatic mixing valves used under the pressure and temperature conditions given in Table 1. This standard allows for the use of low pressure thermostatic mixing valves to supply a single outlet or a small number of outlets in a domestic application (e.g. one valve, controlling a shower,
34、bath, basin, bidet). It excludes valves specifically designed for supplying a large number of outlets (e.g. for institutional use). NOTEThermostatic mixing valves intended for use at flow pressures in excess of those in Table 1 are covered by a separate European Standard EN 1111. 2 Normative referen
35、ces This European Standard incorporates by dated or undated references provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these
36、 publications apply to the European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 31, Pedestal wash basins Connecting dimensions. EN 32, Wall hung wash basins Connecting dimensions. EN 35, Pedestal
37、 bidets over rim supply only Connecting dimensions. EN 36, Wall hung bidets over rim supply only Connecting dimensions. EN 111, Wall hung hand rinse basins Connecting dimensions. EN 200, Sanitary tapware General technical specifications for single taps and mixer taps (Nominal size 1/2) PN 10: Minimu
38、m flow pressure of 0,05 MPa (0,5 bar). EN 232, Baths Connecting dimensions. EN 246, Sanitary tapware General specifications for flow rate regulators. EN 248, Sanitary taps General technical specifications for electrodeposited nickel chrome coatings. EN 695, Kitchen sinks Connecting dimensions. EN 11
39、11, Sanitary tapware Thermostatic mixing valves (PN 10) General technical specification. EN 1254-2, Copper and copper alloys Plumbing fittings Part 2: Fittings with compression ends for use with copper tubes. prEN 1717, Protection against pollution of potable water in drinking water installations an
40、d general requirements of devices to prevent pollution by backflow. Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI w w w . b z f x w . c o m Page 4 EN 1287:1999 BSI 06-2000 ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances an
41、d designation. ISO 5167-1, Measurement of fluid flow by means of pressure differential devices Part 1: Orifice plates, nozzles and Venturi tubes inserted in circular cross-section conduits running full. 3 Definition For the purpose of this standard the following definition applies. 3.1 low pressure
42、thermostatic mixing valve a valve, with one or more outlets, which mixes hot and cold water and automatically controls the mixed water to a user selected temperature. The flow rate between no flow and maximum flow conditions may be effected either by the same control device or a separate flow contro
43、l device, where fitted 4 Classification This specification covers the following types of low pressure thermostatic mixing valves: Type 1 single control: Thermostatic mixing valves with a single control device for regulating flow rate and temperature; Type 2 dual control: Thermostatic mixing valves w
44、ith separate control device for regulating flow rate and temperature; Type 3 single sequential control: Thermostatic mixing valves with a single control which operates through a predetermined sequence of flow and temperature. It shall have a shut-off device; Type 4 thermostatic mixing valves without
45、 flow control device; Type 5 other: Thermostatic mixing valves with special control devices. 5 Designation Low pressure thermostatic mixing valves covered by this standard are designated by: their type (see clause 4); their nominal size (1/2 or 3/4) (see Table 4) with or without diverter (see Table
46、2); their type of body (see Table 2); their type of nozzle (see Table 2); the sanitary appliance on which they are to be used (see Table 2); the method of mounting (see Table 2); their flow rate series (see Table 12); the letters L.P (Low Pressure); reference to this standard EN 1287. In the case of
47、 a thermostatic bath/shower mixing valve, the flow rate shall be designated by both flow rate series. The first for the bath outlet, the second for the shower outlet. EXAMPLE Single control thermostatic mixing valve 3/4, with diverter, visible body single hole, fixed nozzle outlet, bath/shower, hori
48、zontal mounting, series 250, L.P EN 1287. Table 2 Designation Diverterwith or without diverter Type of bodytwo hole, single hole, visible or concealed Type of nozzlefixed/moveable outlet, no nozzle outlet Intended usebasin, bidet, sink, bath or shower Mounting methodhorizontal or vertical surfaces 6
49、 Marking Identification 6.1 Marking Low pressure thermostatic mixing valves complying with this standard shall be permanently and legibly marked with: the mark or name of the manufacturer; the letters L.P. (Low Pressure). 6.2 Identification The temperature control device for the thermostatic mixing valve shall be identified: by means of a scale and/or symbols; and/or by colours (cold water blue, hot water red). Thermostatic mixing valves shall be legibly ma