Pneumatic Rack-and-Pinion Actuator

The Pneumatic Rack-and-Pinion Actuator converts the linear motion of the piston into rotary motion through a rack on the piston meshing with a pinion on the output shaft, delivering output torque to drive 90° rotary valves such as ball valves and butterfly valves. Two versions are available: double acting and single acting spring return. Double acting is switched by supplying air in either direction; single acting returns to the safe position (FC or FO) by spring on loss of air supply. The cylinder is anodized or painted for corrosion protection, and the top mounting platform conforms to ISO 5211, allowing solenoid valves, positioners and limit switches to be fitted.

· Rack-and-pinion transmission, high output torque and compact design · Double acting / single acting spring return (FC/FO) · ISO 5211 standard mounting platform, fits a wide range of valves · Aluminium alloy cylinder, anodized for corrosion protection · Stroke limit, solenoid valve, positioner and limit switch options · ATEX explosion-proof version available on request

For automated on/off control of 90° rotary valves such as ball valves, butterfly valves and plug valves, widely used for remote and automatic operation of oil, chemical, power and water treatment lines.