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Air Torque

Air Torque

Pneumatic actuator-Rack & Pinion

AT model

AT model, an Air Torque rack and pinion actuator, delivers high performance and reliable control, utilizing the latest available technology and materials.

AT series, fast & safe operating actuators with adjustable travel stops, uses the rack and pinion mechanism to produce a quarter turn movement. The operation is based on a pressure signal inserting a force on the balanced piston surface following by a conversion into a rotary motion through a pinion shaft.

These actuators are available in both spring return (SR) and double acting (DA) configurations suitable for various applications.




Temperature range:

Max. operating pressure:

Standard connections:

Standard approval:

Extruded aluminium body with corrosion protection,

Also available in stainless steel housing

Stainless steel drive shaft available on request on all sizes with different protection levels

-20°C to +80°C for continuous operation (Others on request)

8 bar

VDI/VDE 3845, Namur, ISO 5211, DIN 3337


Ramén complete flow control solutions provide an accurate and stable control using AirTorque actuators for valve sizes of DN 25-300 to meet the customers’ requirements. Do contact us for further information.