This draft European standard applies to flushing valves for WCs and valves for urinals, with automatic hydraulic closure, intended for :
WC pans EN 997 ;
single flush urinals prEN 13407 ;
siphon acting urinals prEN 13407.
It does not apply to no-contact detection valves.
It is intended to specify :
marking and identification, physico-chemical, dimensional, leaktightness, pressure behaviour, hydraulic, mechanical endurance and acoustic characteristics of flushing valves for WCs and urinals with automatic closure ;
test methods used to verify these characteristics ;
and to determine requirements for the atmospheric interrupter which shall be an integral part of the WC flushing valve.
It applies in the following pressure and temperature conditions :
EN 12541:2002