The Valbia series 82 pneumatic rack-and-pinion actuators with 0°-90° rotation are available in double-acting and single-acting versions with spring return and are compliant with Directive 2014/34/EU (equipment and Protective Systems intended for use in Potentially Explosive Atmospheres - ATEX).
These actuators can also be setup as fast acting to provide quick and reliable action in critical applications such as high-speed process control or emergency safety or potentially explosive environments.
Using the energy of compressed air to rotate the output shaft, the valve is actuated. The actuation speed is determined by the amount of compressed air supplied to the actuator and the size of the working chambers.