BS EN 817:2008 PDF

BS EN 817:2008 Sanitary tapware. Mechanical mixing valves (PN 10). General technical specifications. BS EN 817 specifies caracteristics with which mechanical mixing valves need to comply. Specifically, it specifies dimensional, leak tightness, pressure resistance, hydraulic performance, mechanical strength, endurance and acoustic characteristics. BS EN 817 also provides laboratory test methods to verify these characteristics. BS EN 817 applies to PN 10 mechanical mixing valves for use with sanitary appliances installed in rooms used for bodily hygiene (cloakrooms, bathrooms, etc.) and in kitchens, i.e. for use with baths, wash basins, bidets, showers and sinks. Replaces BS EN 817:1998 Contents of BS EN 817: ForewordIntroduction Scope  Normative references Terms and definitions Designation Marking and identification Marking Identification Materials Chemical and hygiene requirements Exposed surface conditions Dimensional characteristics  General remarks Inlet dimensions Outlet dimensions Mounting dimensions Special cases  Flexible hoses for shower outlets Shower outlets  Sequence of testing Leaktightness characteristics General Test methods Leaktightness of the obturator and of the...