1. Straight stroke (linear motion) is suitable for single-seat control valves, double-seat control valves, etc.
The movement of the output shaft of the electric actuator is linear motion, not rotating.
2. Multi-turn valve electric device actuator (rotation angle>360 degrees) is suitable for gate valves, globe valves, etc.
The rotation of the output shaft of the electric actuator is more than one circle, that is, more than 360 degrees. Generally, it takes more than one circle to realize the valve opening and closing process control.
3. Actuators of electric actuators for quarter-turn valves (angle of rotation <360 degrees) are suitable for butterfly valves, ball valves, plug valves, etc. The rotation of the output shaft of the actuator of the valve electric device is less than one revolution, that is, less than 360 degrees, usually 90 degrees to achieve the valve opening and closing process control. This kind of electric actuator is divided into direct connection type and base crank type according to the different installation interface methods.
