Generally, the valve electric device is divided into two structures, one is to directly output torque without a thrust plate, and the other is to configure a thrust plate. The output torque is converted into output thrust through the stem nut in the thrust plate. At this time, we can choose according to the actual situation, thereby reducing the possibility of overloading the valve electric device.
At the same time, the opening and closing speed of the valve electric device is too fast, it is easy to produce water hammer. Therefore, the appropriate opening and closing speed should be selected according to different conditions of use. Generally, valve electrical devices use torque-limiting couplings. In this way, not only can the control torque be effectively controlled, but the motor can run within a predetermined time, thereby reducing the possibility of overload
