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How to calculate the torque of the valve
The torque calculation of the valve is specifically: the square of the valve diameter of the one-half of the valve is 3.14, which is the area of ​​the valve plate, and multiplied by the pressure (ie the working pressure of the valve) to obtain the static pressure of the shaft, multiplied by the friction coefficient. (To check the table, the friction coefficient of general steel is 0.1, the friction coefficient of steel to rubber is 0.15), multiplied by the shaft diameter divided by 1000 to obtain the torque of the valve, the unit is cow·meter, electric device and pneumatic actuator reference safety The value is 1.5 times the torque of the valve.