Electric ball valve is one of the important actuators in industrial automation control system. Electric ball valve is also a valve that rotates around the valve stem axis according to the movement of the valve disc. When the electric ball valve is de energized, is the valve normally closed or remains in place? What should I do if I close the electric ball valve?
1. Electric ball valve is not necessary. Some valves have self reset function. According to different types of valves, they will automatically reset after power failure. The valve without self reset function will stop at the original position.
2. If there is a switch for the input power of the electric valve, the power will remain at the original position.
3. When the power is turned off, it must be in a proper position. The original state is the state.
4. Normally, the single acting valve will reset automatically. The double acting valve is the position when the power is cut off.
When the electric ball valve is powered off, we can handle it according to the above method. I hope it will help you.