Buck Sales is an authorized distributor ABB positioners, damper drives and electric actuators

The Type UP Pneumatic Universal Rotary Actuators regulate dampers, fan inlet vanes, lever-operated valves, turbine governors, fluid drives and other final control elements.
These actuators accept electric or pneumatic control signals. and provide modulating or on/off control power to position devices through mechanical linkage or by direct coupling. Types UP1 and UP2 actuators include a double-acting rotary vane power unit. Types UP3, UP4, UP5, UP6 and UP7 actuators include a double-acting piston with a motion conversion mechanism to convert linear to rotary motion