What are the control modes of electric actuators

The main purpose of electric actuators  in valve equipment is a control role, that is, the common electric valves in various industrial systems. Generally, the control mode ofElectric Actuators is generally divided into two categories: switching type (open-loop control) and regulating type (closed-loop control). It was described in a previous article (The difference between an on-off electric valve and a regulated electric valve). What kind of control mode is this switchedElectric Actuatorand adjustable electric actuator, and how is it controlled, let's talk about the control mode of switching and regulating electric actuators.

SwitchingElectric Actuators (Open Loop Control):  

On-off electric actuators typically open or close valves that are either fully open or fully closed, and do not require precise control of the flow of the medium. In particular, it is worth mentioning that switching electric actuators can also be divided into split structure and integrated structure due to different structural forms. This must be explained when selecting the model, otherwise it will often occur in the field installation and other mismatch phenomena such as conflicts with the control system.

Regulated Electric Actuators (Closed-Loop Control):

The regulated electric actuator  not only has the function of a switch-type integrated structure, but also provides precise control of the valve to precisely regulate the flow of the medium.