How to choose electric valve? What parameters are needed? How to determine the torque of electric valve according to pipe diameter and pressure?

1, first confirm the valve type (ball valve, gate valve, globe valve, butterfly valve).

2, then according to the diameter DN, pressure grade, connection mode, main material and internal material;

3. According to the above conditions, the valve manufacturer can calculate the valve switching torque and select the electric actuator.

4. The main parameter of electric valve is torque (butterfly valve, ball valve), which is the torque input to the valve stem when opening this valve. This is also the most important parameter for selecting electric actuator;

5. The shaft diameter is not the pipe diameter, but the diameter of the valve stem.

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