UP Pneumatic Universal Rotary Actuators regulate dampers, fan inlet vanes, lever-operated valves, turbine governors, fluid drives, and other final control elements. They are built on the honorable Bailey heritage and designed as a direct replacement for the older bailey actuators.

ABB’s high performance pneumatic actuators are suitable for continuous modulating or On/Off applications. They offer either mechanical linkage or direct coupling on most standard final elements on the market. The actuators have an option for fail safe or fail in place in case of loss of control signal or pneumatic air supply. For additional safety, UP actuators are equipped with an automatic/manual function to manually override the damper position during an outage or emergency.

The UP actuators can be paired with ABB AV series electro-pneumatic positioners and intelligent TZIDC or EDP300 positioners for precise control and advanced diagnostics. Different communication modules such as HART or Fieldbus are available with the intelligent positioner.

The control signals provide modulating or on/off control power to position devices through mechanical linkage or by direct coupling.

Types UP1 and UP2 actuators include a high-efficiency double-acting rotary vane power unit.

Types UP3, UP4, UP5, UP6, and UP7 actuators include a high-efficiency double-acting cylinder with a motion conversion mechanism to convert linear to rotary motion.

The UP pneumatic actuators offer an incredible torque range to fit any application: