electric auto drain valve consists of an electric motor, an electromagnet, a lever, a gear, a cam, and a sliding rod. The electric drain valve uses the torque force of the motor to control the opening and closing of the drain valve. The motor is powered by another V AC.
The working principle of electric auto drain valve is as follows: When the motor and the electromagnet are energized, all the gears rotate and the sliding rod is inhaled to enable the drain valve to open and drain. After enough time, the drainage ends, the gears rotate, the low recess of the cam reaches the reserve rib point, each contact point is disconnected, the current of the motor and electromagnet is cut off, and the drain valve is closed.