Rotary Stepping Actuators

Precision and Torque for High Pressure Valves

Operating as a rotary actuator, it employs incremental 36° steps to position the valve in 1/10th of turn rotations of the valve-stem nut. This design provides the precision and high torque required for high-pressure valves. Separate cylinders are responsible for valve-open and valve-close operations, each equipped with a spring to deliver linear thrust converted to rotary action through the actuator mechanism.

Versatility for Varied Applications

To accommodate a range of applications and the entire surface valve lineup, the rotary stepping actuator offers three styles of operating cylinders: pneumatic, high-thrust pneumatic, and hydraulic.

Control Options

The Master Flo Rotary Stepping Actuator is typically operated through solenoids, often in conjunction with position feedback provided by a 4-20 mA position transmitter unit. Additionally, optional positioner control systems are available for enhanced functionality.