6.4 名称 Designation

A urinal flushing valve is designated by:

— type of appliance for which it is intended (Siphon action urinal, single flush urinal…);

— volume class (e.g. class 1,5 or 4, etc.);

— mounting method (top-entry, side-entry…);

— its nominal DN size;

— its connecting dimension of inlet and outlet;

— eventual presence of integral isolating valve.