Pneumatic Actuator Valve

Pneumatic actuated valves used compressed air flowing into and exhausting from an actuator to open and close the valve. The type of pneumatic actuator required depends on the actuator valve. Valves requiring linear motion (gate, globe or diaphragm valves) typically require a pneumatic diaphragm actuator. Quarter turn valves (ball and butterfly valves) typically require either a rack-and-pinion actuator or a scotch yoke actuator. We'll discuss the two types on quarter-turn air actuators in greater detail.

Double Acting

Double acting actuators use compressed gas driving a piston to both open and close the valve. These actuators have two ports to pass and exhaust the gas. Compressed gas is fed through the first port, causing the actuator to close the valve, and then exhausted out the second port. To return to the original position the supply and exhaust functions are reversed.

Spring Return

Spring return actuators typically have a single port to both pass and exhaust the compressed gas. Unlike double acting actuators, spring return actuators are driven in a single direction and, when the gas is exhausted, use springs to return to the original position. The valve can be installed to return to either the closed or open position; the more common mode is normally closed.

Technical Data of Pneumatic Actuator Valve:

Pneumatic Ball Valves for you to choose:

Pneumatic Butterfly Valves for you to choose:

Accessories for Pneumatic Actuator Valves:

Pneumatic Actuator	Limit Switch	Namur Solenoid Valve

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