The most extensive definition of an actuator is a driving device that can provide linear or rotational motion, utilizing a certain driving energy source and working under the action of a certain control signal. The actuator uses liquid, gas, electricity, or other energy sources and converts them into driving force through motors, cylinders, or other devices. There are three basic types of driving modes: Part Turn, Multi Turn, and Linear.
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 for opening and closing valves, the design of today's actuators goes far beyond simple switching functions. They include position sensing devices, torque sensing devices, electrode protection devices, logic control devices, digital communication modules, and PID control modules, all of which are installed in a compact housing.
