Pneumatic diaphragm actuator with multi-spring structure, light weight, small volume, high performance and large output force. The working principles areas follows: electricity or gas signal from controller will enter the diaphragm room after converted into air pressure by positioner to form push force to act on the diagram and make the push rod move. Meanwhile the spring is compressed until the acting force is balanced with counter-acting force to make the push rod reach preset position.
Pneumatic diaphragm actuator (Low Temperature) is mainly used in the sites where the ambient temperature is lower than -40 ° c
Pneumatic diaphragm actuator (Stainless Steel) is mainly used in the sites where the air containing corrosive media.
This Series provides double-acting and spring return pneumatic cylinder actuators characterized by large output and high-performance.Combined with linear stem motion type control valves,including globe valves,cage valves and gate valves,the actuators of this series are suited for modulating and on-off services.