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NBN EN 817 : 2008
Current
The latest, up-to-date edition.
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SANITARY TAPWARE - MECHANICAL MIXING VALVES (PN 10) - GENERAL TECHNICAL SPECIFICATIONS
12-01-2013
Foreword
0 Introduction
1 Scope
2 Normative references
3 Definition
4 Classification
4.1 Single control mixing valve
4.2 Other mixing valves
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 remarks concerning the drawing
8.2 Mechanical mixing valves mounted on horizontal
surfaces
8.3 Mechanical 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 mixing valves upstream of
obturator; cross flow between hot water and cold
water
9.4 Leaktightness of the obturator; cross flow between
hot water and cold water
9.5 Leaktightness of the mixing valve downstream
of the obturator
9.6 Leaktightness of manual diverters
9.7 Leaktightness of diverters 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 of the mixing valve
10.5 Procedure
10.6 Verification of hydraulic characteristics
11 Mechanical performance under pressure
11.1 General
11.2 Apparatus
11.3 Testing the mechanical performance upstream of
the obturator - obturator(s) in the closed position
11.4 Testing the mechanical performance downstream
of the obturator - obturator(s) in the open position
12 Mechanical endurance characteristics
12.1 Mechanical endurance of the control device
12.2 Mechanical endurance of diverters
12.3 Mechanical endurance of swivel nozzles
13 Torsion resistance characteristics of the control
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
Annexes
A (normative) Examples of pressure take-off tees
A.1 Recommendation for the design of pressure
take-off tees
B (informative) Acoustic classification (example)
B.1 Mechanical mixing valve with nozzle
B.2 Mechanical mixing valve with shower or shower
head outlet
B.3 Mechanical mixing valve with nozzle and
shower or shower head outlet
C (informative) Summary of leaktightness tests
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