When it comes to the purpose of electric actuator, it is actually to convert the rotary motion of motor into the desired operation (linear operation / rotary operation) to achieve the operation of electric actuator. It has remote control function, local control function, and can be operated by electric or manual.

The basic actuator is used to drive the valve to the fully open or fully closed position. The actuator used to control the valve can accurately move the valve to any position. Although most actuators are used to switch valves, the design of today's actuators goes far beyond simple switching functions, including position sensing device, torque sensing device, electrode protection device, logic control device, digital communication module and PID control module, which are all installed in a compact shell.

The electric actuator is the driving device for all kinds of electric valves in the rotary control system, which is used to control the opening and closing of valves. It is suitable for the valves with equal angular stroke of butterfly valve, ball valve and air valve. It can act accurately according to the control command. It is an essential driving device for realizing remote control, centralized control and automatic control of valves.