Univalve Inlet Valve ~ Delayed Fill ~ 220mm Height

The Univalve is an equilibrium float valve for use in wc cisterns. It operates as follows: When the cistern is flushed the float arm (1) drops allowing water to escape through the bleed hole in the cap (2). This reduces the water pressure on the front of the diaphragm (3) allowing the supply pressure to push the diaphragm away from the seating (4) and opening the float valve. As the cistern fills the rubber billet (5) in the end of the float arm shuts off the bleed hole in the cap, allowing pressure to build in the front of the chamber (6). When this pressure is equal to the supply pressure the diaphragm is pushed onto the inlet and valve closes.