Actual operating torque: the actual operating torque is the key and main parameter for selecting the electric equipment of the stop valve. The output torque of the intelligent electric actuator shall be 1.2-1.5 times of the actual operating torque of the stop valve.
The key structure of the actual operation is the electric equipment of the thrust stop valve. There are two types: one is not equipped with a thrust disc, which outputs the torque immediately; the other is equipped with a thrust disc, which converts the output torque of the thrust disc of the valve stem nut to the output thrust.
number of rotating rings of output shaft: the number of rotating rings of output shaft of electrical equipment is related to the outer diameter of stop valve, the pitch of valve rod and the number of external thread heads. It is calculated according to m=h/zs (M is the number of rotating rings that should be considered for electrical equipment, h is the opening height width ratio of stop valve, s is the pitch diameter of external thread of valve rod driver, and Z is the total number of stem external thread heads).
