Valve for tank of wastewater treatment plant, has disc placed on its conical shape seat, and electric actuator blocking float in top position, so that disc is maintained on shaft in open position by notching in order to drain liquid

摘要

The valve has a disc (1) placed on its conical shape seat (2), and a float (7). An electric actuator (13) controls a finger (12) that liberates rising of a shaft (11). The actuator actuates the float, to block the float in top position, so that the disc is maintained on the shaft in open position by a notching (15) in order to drain the liquid contained in a tank.