NBN EN 1287 : 1999

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 Mounting and initial set up 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 - Obturator in the closed position
      11.4 Testing of mechanical performance of the
             thermostatic mixing valve downstream of the
             obturator - Obturator in the open position
12 Mechanical endurance characteristics
      12.1 General
      12.2 Endurance (life) test for other on off flow
             control device of thermostatic mixing valves
      12.3 Mechanical endurance of diverters
      12.4 Mechanical endurance of swivel nozzles
13 Torsional resistance characteristics of the operating
      control
      13.1 General
      13.2 Test method
14 Protection against pollution of drinking water
Annex A (normative) Design of reducing adapters
Annex B (normative) Examples of pressure take-off tees
Annex C (informative) Low hydraulic resistance fittings
Annex D (informative) Summary of leaktightness tests

Defines requirements for "low hydraulic resistance" thermostatic mixing valves which are suited for use in low pressure water supply systems