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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1286:1999 The Europ
2、ean Standard EN 1286:1999 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 mechanical mixing valves General technical specification Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 16:37:15 G
3、MT+00:00 2006, 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 09-1999 ISBN 0 580 32600 4
4、 BS EN 1286:1999 Amendments issued since publication Amd. No.DateComments National foreword This British Standard is the English language version of EN 1286:1999. It supersedes BS 1415-1:1976 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee B/504, Wate
5、r 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 informed; monitor related international a
6、nd 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 in this document may be found in the
7、 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. Users of British Standards are respons
8、ible 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 36, an inside back cover and a back cover. The BSI copyright
9、notice displayed in this document indicates when the document was last issued. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 16:37:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Ce
10、ntral Secretariat: 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 1286:1999 E EUROPEAN STANDARDEN 1286 NORME EUROPE ENNE EUROPA ISCHE NORM April 1999 ICS 91.140.70 English version Sanitary
11、tapware Low pressure mechanical mixing valves General technical specification Robinetterie sanitaire Mitigeurs me caniques basse pression Spe cifications techniques ge ne rales Sanita rarmaturen Mechanisch einstellbare Mischer fu r den 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: sheffieldun sheffieldun, na, Sat Oct 28 16:37:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 1286:1999 BSI 09-1999 Foreword This European Standard has been prepared by Technical Committee CEN/TC 164, Water supply, the Secretariat of which
16、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 October 1999, and conflicting national standards shall be withdrawn at the latest by October 1999. According to the CEN/CENELEC In
17、ternal Regulations, the national standards organizations 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, Switzerla
18、nd and the United Kingdom. Contents Page Foreword2 Introduction3 1Scope3 2Normative references3 3Definition3 4Classification4 4.1 Single control mechanical mixing valves4 4.2 Other mechanical mixing valves4 5Designation4 6Marking Identification4 6.1 Marking4 6.2 Identification4 7Materials4 7.1 Chemi
19、cal and hygienic characteristics4 7.2 Exposed surface condition and quality of coating4 8Dimensional characteristics4 8.1 General comment on drawing4 8.2 Low pressure mechanical mixing valves mounted on horizontal surfaces4 8.3 Mechanical mixing valves mounted on vertical surfaces14 8.4 Dimensions o
20、f water outlets16 8.5 Special cases19 9Leaktightness characteristics20 9.1 General20 9.2 Test methods20 9.3 Leaktightness of the mixing valve upstream of the obturator and of the obturator21 Page 9.4 Leaktightness of the obturator: cross flow between hot water and cold water21 9.5 Leaktightness of t
21、he mixing valve downstream from the obturator21 9.6 Leaktightness of manual diverters21 9.7 Leaktightness of diverters with automatic return21 9.8 Summary of requirements21 10Hydraulic operating characteristics23 10.1 General23 10.2 Test method23 10.3 Apparatus23 10.4 Mounting and initial set-up pro
22、cedure25 10.5 Determination of flow rate25 10.6 Sensitivity25 11Mechanical performance under pressure26 11.1 General26 11.2 Apparatus26 11.3 Testing the mechanical performance upstream of the obturator Obturator in the closed position27 11.4 Testing the mechanical performance downstream of the obtur
23、ator Obturator in the open position27 12Mechanical endurance characteristics27 12.1 Mechanical endurance of the control device27 12.2 Mechanical endurance of diverters30 12.3 Mechanical endurance of swivel nozzles30 13Torsion resistance characteristics of the control31 13.1 General31 13.2 Test metho
24、d31 14Protection against pollution of drinking water31 Annex A (normative) Design of reducing adapters32 Annex B (normative) Examples of pressure take-off tees32 Annex C (informative) Low hydraulic resistance fittings34 Annex D (informative) Summary of leaktightness tests35 Licensed Copy: sheffieldu
25、n sheffieldun, na, Sat Oct 28 16:37:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 1286:1999 BSI 09-1999 Table 1 Conditions for the use of low pressure mechanical 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 #
26、 0,1 MPa (0,2 bar # P # 1,0 bar) Hot water temperatureT # 90 8C55 # T # 65 8C Cold water temperatureT # 25 8CT # 25 8C Mechanical strength 1) static pressure = 1 MPa (10 bar) For low pressure mechanical mixing valves complying with this table there are no acoustical requirements. Low pressure mechan
27、ical mixing 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) Low pressure mechanical mixing valves are designed to provide s
28、ufficient 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 produ
29、ct may 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 Europea
30、n Standard specifies requirements for low hydraulic resistance mechanical 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, mechanical endura
31、nce characteristics with which low pressure mechanical mixing valves shall comply; the procedure for testing these characteristics. It is applicable: to low pressure mechanical mixing valves, intended for use on sanitary appliances in washrooms (toilets, bathrooms etc.) and in kitchens; to low press
32、ure mechanical mixing valves used under the following pressure and temperature conditions given in Table 1. NOTEMechanical mixing valves for use at pressures in excess than those in Table 1 are covered by EN 817. 2 Normative references This European Standard incorporates by dated or undated referenc
33、e, 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 publications apply to this European Standard only when incorporated
34、 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 bidets over rim supply only Connecting dimensions. EN 36, Wall hun
35、g bidets over rim supply only Connecting dimensions. EN 111, Wall hung rinse basins Connecting dimensions. 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
36、 chrome coatings. EN 695, Kitchen sinks Connecting dimensions. EN 817, Sanitary tapware Mechanical mixers (PN 10) General technical specifications. EN 1254-2, Copper and copper alloys Plumbing fittings Part 2: Fittings with compression ends for use with copper tubes. prEN 1717, Protection against po
37、llution of potable water in drinking water installations and general requirements of devices to prevent pollution by backflow. ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation. ISO 5167-1:1991, Measurement of fluid flow by
38、 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 purposes of this standard, the following definition applies. 3.1 mechanical mixing valve valve which by means of a control device m
39、ixes hot and cold water between the all cold water position and the all hot water position and adjusts the flow rate of the mixture obtained between the no flow and maximum flow positions, either using the same control device or another separate control device Licensed Copy: sheffieldun sheffieldun,
40、 na, Sat Oct 28 16:37:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 1286:1999 BSI 09-1999 4 Classification There are two types of low pressure mechanical mixing valves: 4.1 Single control mechanical mixing valves Mechanical mixing valves with a single control device for adjusting flow rate
41、 and temperature. 4.2 Other mechanical mixing valves Mechanical mixing valves with separate control devices for adjusting flow rate and temperature. 5 Designation A low pressure mechanical mixing valve is designated by: its type (see clause 4); its nominal size (1/2 or 3/4) (see Table 4), with or wi
42、thout diverter (see Table 2); type of body (see Table 2); type of nozzle (see Table 2); sanitary appliance on which it is to be used (see Table 2); method of mounting (see Table 2); its flow rate series (see Table 12); the letters LP (low pressure); reference to this standard (EN 1286). In the case
43、of a mechanical bath/shower mixer, 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 mechanical mixing valves 3/4, with diverter, visible body and fixed nozzle outlet, for bath/shower, for horizontal mo
44、unting, series 250, LP EN 1286. Table 2 Designation Diverterwith or without diverter Type of bodyTwo hole, single hole, visible or concealed Type of nozzlefixed or moveable nozzle outlet, no nozzle outlet Intended usebasin, bidet, sink, bath or shower Mounting method horizontal or vertical surfaces
45、6 Marking Identification 6.1 Marking Mechanical mixing valves complying with this standard shall be marked permanently and legibly with: the mark or name of the manufacturer; the letters L.P. 6.2 Identification The temperature control device for the mechanical mixer shall be identified: for cold wat
46、er by the colour blue; for hot water by the colour red. The identification of cold water shall be on the right and the hot water on the left. 7 Materials 7.1 Chemical and hygienic characteristics All materials in contact with water intended for human consumption shall present no health risk up to a
47、temperature of 90 8C. They shall not cause any deterioration in water intended for human consumption, with regard to food quality, appearance, odour or taste. Within the recommended limit given in clause 1 for correct operation, the materials shall not be subject to any deterioration which might com
48、promise the operation of the mechanical mixing valve. Pressurized parts shall withstand the limits of use set in Table 1. Materials with inadequate corrosion resistance shall be given additional protection. 7.2 Exposed surface condition and quality of coating Visible chromium plated surface and Ni-C
49、r coatings shall comply with the requirements of EN 248. 8 Dimensional characteristics 8.1 General comment on drawing The design and construction of components without defined dimensions permits various design solutions to be adopted by the manufacturer. Special cases are covered in 8.5. 8.2 Low pressure mechanical mixing valves mounted on horizontal surfaces The standardized dimensions of mechanical mixing valves: firstly, guarantee their mounting and interchang
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