BS EN 817:2008
Superseded
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Sanitary tapware. Mechanical mixing valves (PN 10). General technical specifications
Hardcopy , PDF
English
31-01-2009
15-10-2024
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and designation
3.1 Terms and definitions
3.2 Designation
4 Marking and identification
4.1 Marking
4.2 Identification
5 Materials
5.1 Chemical and hygiene requirements
5.2 Exposed surface conditions
6 Dimensional characteristics
6.1 General remarks
6.2 Inlet dimensions
6.3 Outlet dimensions
6.4 Mounting dimensions
6.5 Special cases
6.6 Flexible hoses for shower outlets
6.7 Shower outlets
7 Sequence of testing
8 Leaktightness characteristics
8.1 General
8.2 Test methods
8.3 Leaktightness of the obturator and of the mixing valve
upstream of the obturators with the obturator in the
closed position
8.4 Leaktightness of the mixing valve downstream of the
obturator with the obturator open
8.5 Leaktightness of manually operated diverter
8.6 Leaktightness and operation of diverter with automatic return
8.7 Leaktightness of the obturator: cross flow between hot water
and cold water
9 Pressure resistance characteristics - mechanical performance
under pressure
9.1 General
9.2 Principle
9.3 Apparatus
9.4 Mechanical behaviour upstream of the obturator - obturator
in the closed position
9.5 Mechanical behaviour downstream of the obturator - obturator
in the open position
10 Hydraulic characteristics
10.1 General
10.2 Initial settings
10.3 Principle
10.4 Apparatus
10.5 Procedure
10.6 Determination of flow rate
10.7 Determination of sensitivity
11 Mechanical strength characteristics - torsion test
for operating mechanism
11.1 General
11.2 Test method
12 Mechanical endurance characteristics
12.1 Mechanical endurance of the control device
12.2 Mechanical endurance of diverters
12.3 Mechanical endurance of swivel spouts
13 Backflow protection
14 Acoustic characteristics
14.1 General
14.2 Procedure
14.3 Requirements
Annex A (informative) - Apparatus
Annex B (informative) - Pressure take-off tee
Bibliography
Describes the dimensional, leaktightness, pressure resistance, hydraulic performance, mechanical strength, endurance and acoustic characteristics with which mechanical mixing valves need to comply; and test methods to verify the characteristics.
| Committee |
B/504/-/8
|
| DevelopmentNote |
Supersedes 92/17021 DC. (09/2005) Supersedes 05/30127036 DC. (12/2008)
|
| DocumentType |
Standard
|
| Pages |
54
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| DIN EN 817:2008-09 | Identical |
| NS EN 817 : 2ED 2008 | Identical |
| I.S. EN 817:2008 | Identical |
| NEN EN 817 : 2008 | Identical |
| EN 817:2008 | Identical |
| NBN EN 817 : 2008 | Identical |
| NF EN 817 : 2008 | Identical |
| UNE-EN 817:2009 | Identical |
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