KSB AG Double-acting Pneumatic Actuator ACTAIR

Design Double-acting pneumatic actuator for mounting on quarter-turn valves (butterfly valves or ball valves). Top flange to ISO 5211. Control pressure up to 8 bar. Can be mounted on various types of valvestem ends (square end, flat end or key). Force transmission via rack-and-pinion, scotch-yoke or patented Amri yoke kinematics provides output torques of up to 16000 Nm which are ideal for actuating quarter-turn valves. ACTAIR is equipped with a visual position indicator and adjustable travel stops for open/ closed position as standard. Manual override can be provided on request. For automated valve actuation, ACTAIR can be combined with AMTROBOX, AMTRONIC, SMARTRONIC or any other control unit with VDI/VDE 3845 interface. Applications All applications in water, energy and industrial engineering. Overview of technical data Actuator effect Double- acting Manual override for actuator Yes Type of control Continuous- action actuation Actuator movement Rotation Max. perm. temp., control press. medium 80 °C Min. control pressure 3 bar Actuator closing time 0 s Max. torque 17 Nm Min. ambient temperature, actuator 20 °C Ambient temperature, actuator 20- °C Actuator limit switch Yes Actuator position feedback Yes Face-to-face length 0 Max. closing force [N] 0. 00