MOTOR-DRIVEN VALVE WITH ASSISTED CLOSING

摘要

The invention relates to a motor-driven valve (1) comprising an actuating rod (15) driven by an electric motor (5) and connected to a mobile flap (8) that can assume an open position and a closed position where the flap rests on a seat (10) against the pressure of a liquid, characterised in that the flap (8) is pressed against its seat (10) by at least one pre-stressed elastic return member (60; 61) for assisted closing.