NBN EN 1111 : 1998

Foreword
Introduction
1 Scope
2 Normative references
3 Definition
4 Classification
5 Designation
6 Marking/Identification
6.1 Marking
6.2 Identification
7 Materials
7.1 Chemical and hygienic characteristics
7.2 Exposed surface condition and quality of coating
8 Dimensional characteristics
8.1 General comment on drawings
8.2 Thermostatic mixing valves mounted on horizontal surfaces
8.3 Thermostatic mixing valves mounted on vertical surfaces
8.4 Dimensions of water outlets
8.5 Special cases
9 Leaktightness characteristics
9.1 General
9.2 Test methods
9.3 Leaktightness of the thermostatic mixing valve upstream
      of the obturator and of the obturator
9.4 Leaktightness of the obturator of the thermostatic mixing
      valve. Cross-flow between hot and cold water
9.5 Leaktightness of the thermostatic mixing valve downstream
      of the obturator
9.6 Leaktightness of the manual diverter of the thermostatic
      mixing valve
9.7 Leaktightness of the thermostatic mixing valve diverter
      with automatic return
9.8 Summary of requirements
10 Hydraulic operating characteristics
10.1 General
10.2 Test method
10.3 Apparatus
10.4 Procedure
10.5 Determination of flow rate
10.6 Sensitivity
10.7 Test for safety with cold water failure
10.8 Test for temperature stability with changing inlet pressure
10.9 Test for temperature stability with changing
      inlet temperature
11 Mechanical performance under pressure
11.1 General
11.2 Apparatus
11.3 Testing of mechanical performance of the thermostatic
      mixing valve upstream of the obturator in the
      closed position
11.4 Testing of the mechanical performance of the thermostatic
      mixing valve downstream of the obturator - Obturators in
      the open position
12 Mechanical endurance characteristics
12.1 General
12.2 Endurance (life) test for other on-off flow control
      devices of thermostatic mixing valves
12.3 Mechanical endurance of diverters of thermostatic
      mixing valves
12.4 Mechanical endurance of swivel nozzles of thermostatic
      mixing valves
13 Torsional resistance characteristics of the operating
      control of the thermostatic mixing valve
13.1 General
13.2 Test method
14 Acoustic characteristics
14.1 General
14.2 Procedure
14.3 Requirements
15 Protection against pollution of drinking water
Annex A (informative) Examples of pressure take-off tees
Annex B (informative) Acoustic classification (example)
Annex C (informative) Summary of leaktightness tests
Annex D (informative) Bibliography

Defines the leaktightness, dimensional, hydraulic and mechanical performance, mechanical endurance and acoustic characteristics which thermostatic mixing valves comply; the procedures for testing these characteristics. Applicable to thermostatic mixing valves, used on sanitary appliances in bathrooms, toilets and kitchens. Also for PN10 thermostatic mixing valves under temperature and pressure conditions.