Pneumatic Valve Actuators Information
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Pneumatic valve actuators adjust valve position by converting air pressure into linear or rotary motion. There are two main forms: the piston actuators and diaphragm actuators.

Piston actuators are used when the stroke of a diaphragm actuator would be too short or the thrust is too small. Compressed air is applied to a solid piston contained within a solid cylinder. Simple designs have the air fed into a central chamber and the air forces the piston upwards. When the air pressure is removed, the shaft moves in the opposite direction due to the reverse force spring. Piston actuators can also being double acting, meaning the air can be fed into either side of the piston since there is not a return spring.

Pneumatic actuator

Main Features

Pneumatic rotary actuator are greatly used in ball valve and butterfly valve.

Low cost, compact design, long working life.

Pneumatic actuator type: single acting (spring return) or double acting.

Color: orange, blue, black, dark gray. we accept OEM colors and brand.

Pneumatic actuator working pressure: 0.3~0.8MPa

Bottom connection: ISO 5211

Solenoid valve standard: Namur

Accessories of pneumatic actuator: limit switch box, solenoid valve, positioner.

AT series Pneumatic Actuator is made of dual pistons driven by racks and pinions. There are two models. One is Dual Acting model, and the other is Spring Return model, which can suit various flammable, corrosive, dusty, strong magnetic field, radiation, vibration corrosive environment indoor or outdoor.

Auto-control in the field of electric power, petrochemical, metallurgy, petroleum, gas, town, construction, drainage, chemical industry, oil refining, mining, power plant, metallurgy, architecture, medicine, food, gas, scientific research, etc.