BS EN 1111:2017
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Sanitary tapware. Thermostatic mixing valves (PN 10). General technical specification
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 60 |
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 °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 approximately 38 °C) as children are 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. toilets and cloakrooms) and bath rooms 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 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
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 10 | 1 Scope 2 Normative references |
| 11 | 3 Terms and definitions |
| 12 | 4 Symbols and units |
| 13 | 5 Classification 6 Designation |
| 14 | 7 Marking/identification 7.1 Marking 7.2 Identification 8 Materials 8.1 Chemical and hygiene requirements 8.2 Exposed surface condition and quality of coating |
| 15 | 9 Dimensional characteristics 9.1 General remarks 9.2 Inlet dimensions |
| 17 | 9.3 Outlet dimensions |
| 19 | 9.4 Mounting dimensions |
| 22 | 9.5 Special cases 9.6 Flexible hoses for outlet 2 9.7 Outlet 2 10 Backflow protection |
| 23 | 11 Test sequence 12 Leaktightness 12.1 General 12.1.1 Principle 12.1.2 Apparatus 12.2 Leaktightness of the obturator and upstream thereof 12.2.1 General 12.2.2 Procedure 12.2.3 Requirements |
| 24 | 12.3 Cross-flow between inlets 12.3.1 General 12.3.2 Procedure 12.3.3 Requirements 12.4 Leaktightness downstream of the obturator 12.4.1 Procedure 12.4.2 Requirements 12.5 Leaktightness of manually operated diverter 12.5.1 Procedure |
| 25 | 12.5.2 Requirement 12.6 Leaktightness of diverters with automatic return 12.6.1 Procedure 12.6.2 Requirement 13 Performance 13.1 General 13.1.1 Initial settings |
| 26 | 13.1.2 Apparatus 13.1.3 Procedure |
| 27 | 13.2 Determination of flow rate 13.2.1 Principle 13.2.2 Procedure 13.2.2.1 General 13.2.2.2 Procedure 1 13.2.2.3 Procedure 2 |
| 28 | 13.2.3 Evaluation of the results 13.2.4 Requirements 13.3 Sensitivity 13.3.1 General 13.3.2 Principle 13.3.3 Procedure |
| 29 | 13.3.4 Evaluation of results 13.3.5 Requirements |
| 30 | 13.4 Fidelity 13.4.1 General 13.4.2 Principle 13.4.3 Procedure 13.4.4 Evaluation of results 13.4.5 Requirements |
| 31 | 13.5 Temperature stability 13.5.1 Temperature control operation 13.5.1.1 General 13.5.1.2 Principle 13.5.1.3 Procedure 13.5.1.4 Evaluation of results 13.5.1.5 Requirements 13.5.2 Flow rate reduction 13.5.2.1 General |
| 32 | 13.5.2.2 Principle 13.5.2.3 Procedure 13.5.2.4 Evaluation of results 13.5.2.5 Requirements 13.5.3 Cold supply failure and restoration 13.5.3.1 Principle 13.5.3.2 Procedure 13.5.3.3 Evaluation of results |
| 33 | 13.5.3.4 Requirements 13.5.4 Supply pressure variation 13.5.4.1 Principle 13.5.4.2 Procedure 13.5.4.3 Evaluation of results 13.5.4.4 Requirements |
| 34 | 13.5.5 Supply temperature variation 13.5.5.1 Principle 13.5.5.2 Procedure 13.5.5.3 Evaluation of results 13.5.5.4 Requirements 13.5.6 Temperature Override Stops 13.5.6.1 Principle 13.5.6.2 Procedure |
| 35 | 13.5.6.3 Evaluation of results 13.5.6.4 Requirements before the endurance test 13.5.6.5 Requirements after the endurance test 14 Pressure resistance 14.1 General 14.2 Apparatus 14.3 Testing of mechanical performance of the thermostatic mixing valve upstream of the obturator in the closed position 14.3.1 Procedure 14.3.2 Requirement 14.4 Mechanical behaviour downstream of the obturator – Obturator in the open position 14.4.1 Procedure |
| 36 | 14.4.2 Requirement 15 Torsional resistance of the operating controls 15.1 General 15.2 Test method 15.2.1 Principle of the test 15.2.2 Apparatus 15.2.3 Procedure 15.2.3.1 General 15.2.3.2 Flow control 15.2.3.3 Temperature control 15.2.3.4 Temperature override stop 15.2.3.5 Requirements |
| 37 | 16 Mechanical endurance characteristics 16.1 General 16.2 Endurance test for single sequential control device 16.2.1 Principle 16.2.2 Apparatus 16.2.3 Procedure |
| 38 | 16.2.4 Requirement 16.3 Endurance test for on/off flow control device operated by rotating the control handle 16.3.1 Principle 16.3.2 General 16.4 Endurance test for on/off flow control device, combined with diverter mechanism 16.4.1 Principle 16.4.2 Apparatus 16.4.3 Procedure |
| 39 | 16.4.4 Requirement 16.5 Endurance test for other on-off flow control device 16.5.1 Principle 16.5.2 Apparatus 16.5.3 Procedure 16.5.4 Requirement |
| 40 | 16.6 Mechanical endurance of diverters of thermostatic mixing valves 16.6.1 General 16.6.2 Test method 16.6.2.1 Principle 16.6.2.2 Apparatus 16.6.2.3 Procedure |
| 41 | 16.6.3 Requirements 16.7 Mechanical endurance of swivel spouts 16.7.1 General 16.7.2 Test method 16.7.2.1 Principle 16.7.2.2 Apparatus 16.7.2.3 Procedure |
| 42 | 16.7.3 Requirements 16.8 Thermal Element 16.8.1 Principle 16.8.2 Temperature adjustable valves (Type 1, 2, 4) 16.8.2.1 Apparatus 16.8.2.2 Procedure 16.8.2.3 Requirements |
| 43 | 16.8.3 Temperature set valves (Type 5) 16.8.3.1 Apparatus 16.8.3.2 Procedure 16.8.3.3 Requirements 16.8.4 Other valves with special control devices (Type 6) |
| 44 | 17 Acoustic characteristics 17.1 General 17.2 Procedure 17.2.1 Fitting and operating conditions for thermostatic mixing valves 17.2.2 Test method 17.3 Requirements 17.3.1 Expression of results 17.3.2 Determination of acoustic groups 17.3.3 Flow rate classes (thermostatic mixing valves Type 1, 2, 3) |
| 46 | Annex A (normative)Test Set-up Descriptions A.1 General A.2 Inlet pipework A.2.1 Thermostat endurance |
| 47 | A.2.2 Performance A.3 Outlet pipework A.3.1 General |
| 48 | A.3.2 Outlet for valves without integral atmospheric discharge spouts |
| 50 | A.3.3 Outlet for valves with atmospheric discharge nozzles |
| 51 | Annex B (normative)Measurements B.1 Pressure B.2 Flow B.3 Temperature B.3.1 Mounting B.3.2 Accuracy B.3.3 Response time B.4 Angular position B.5 Duration of transients |
| 54 | Annex C (informative)Temperature transient C.1 Positive temperature transient |
| 55 | C.2 Negative temperature transient |
| 56 | Annex D (informative)Acoustic classification (example) D.1 Thermostatic mixing valve with nozzle D.2 Thermostatic mixing valves with shower or shower head outlet D.3 Thermostatic mixing valves with nozzle and shower or shower head outlet |
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BS EN 1111:2017 – TC:2020 Edition
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