Pneumatic Actuator are designed for quick opening and closing. A well-engineered combination of a powerful pneumatic actuator, fitted for client's heavy duty high performance requirement. Pneumatic actuator offers single acting (fail closed or open) or Double acting options. Double acting actuators use an air pressure signal (80-120 PSI) to open and close the valve. Single acting (Spring return) actuators use an air pressure signal (80-120 PSI) to open and close the valves.