Woodward Steam Turbine Actuation

Electro-Hydraulic Actuator for Steam Turbines

UG Actuators

Woodward’s UG self-contained, electro-hydraulic actuator replaces UG governors on steam turbines plusdiesel, gasoline, or natural gas engines. The UG and UG40 Actuators accept a 0-200mA proportional demand signal from an electrical control system and use hydraulic power from an internal pump driven by its drive shaft to create the force to move its rotary output shaft. The actuators provide the muscle for Woodward analog controls such as the 2301A, as well as Woodward digital controls such as the 500-series, 700-series, and the IGEM® engine management system.

UG-Actuator:
 

• Output - Rotary shaft, 37 degrees, 13.6 J (10 ft-lb) max
• Input Power - 0-200mA position demand signal, coupled drive shaft spinning at 375 to 1500 rpm 

Learn more from the UG Actuator product specification 

UG40 Actuator:
 

• Output - Rotary shaft, 37 degrees, 85 J (63 ft-lb) max
• Input Power - 0-200mA position demand signal, coupled drive shaft spinning at 350 to 1300 rpm, self-contained oil sump

Learn more from the UG40 Actuator product specification