Pneumatic actuators are one of the most popular engineering devices for the opening and closing of control valves as they provide high force and speed rivaled only by hydraulic actuators.
Consisting of a piston, cylinder, and valves or ports, a pneumatic actuator can convert energy into linear or rotary mechanical motions. This is dependent on whether the application is using a pneumatic rotary actuator or a linear actuator.
Linear actuators are best suited for fitting to angle seat control valves built for high temperature and steam applications, whereas the pneumatic rotary actuators are better suited for use on quarter-turn valves depending on the specification of the application.
As pneumatic actuators do not require ignition or electricity, they ensure reliability and safety in applications where the risk of fire or combustion is not an option. They are also well versed to applications where continuous motion/modulating is required.
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