Actuators can automate valves so that no human interaction with the valve package is necessary to cycle the valve. They can be remotely operated and act as shutdown mechanisms in an emergency situation that would be dangerous for human intervention.
Actuators are mechanical devices that are used for the purpose of moving and thereon controlling a particular mechanical system often involving valves for example. Actuators make use of energy produced by air liquid or electricity and thereon convert that into physical energy initiating a motion.
Actuators can be of various kinds, to name a few would be,
Plasma actuator Pneumatic actuator Electric actuator Motor Hydraulic cylinders Linear actuator
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