Pneumatic actuator valve

Pneumatic, Electric, Hydraulic, and Gas Over Oil Actuators Pneumatic Knife Gate Valves | Valves And Fittings | VaasPneumatic Diaphragm Valve/Pressure Modulating Control Electro-hydraulic valve actuator - EHO - BETTIS - quarter-turnPneumatic control cabinets save energy and water - IAWorking principles of a double acting rotary actuatorTork-Sc-Yk Series Scotch Yoke Pneumatic Rotary Actuators