Woodward 8574-696
Product Name: Heavy-Duty Hydraulic Governor Actuator
Product Introduction: A robust hydraulic actuator for Woodward PG/PGA series governors, converting hydraulic pressure into mechanical motion to drive fuel control valves. Engineered for high torque and durability in large-bore diesel/gas engines and steam turbines, ensuring precise fuel regulation under extreme load conditions.
Detailed content
Technical Specifications:
- Actuator Type: Hydraulic rotary actuator
- Output Torque: 40–60 Nm (maximum)
- Hydraulic Input Pressure: 7–14 MPa (1000–2000 psi)
- Rotation Angle: 0–90 degrees (adjustable)
- Fluid Compatibility: ISO VG 46 hydraulic oil
- Operating Temperature: -20 °C to +85 °C
- Material: High-strength alloy steel, cast iron housing
- Weight: 22 kg
- Shaft Diameter: 25 mm (standard fuel pump connection)
Functional Features:
- High torque output for large fuel pump and valve actuation
- Precise hydraulic control for accurate fuel flow regulation
- Adjustable rotation angle and travel limits for equipment protection
- Sealed hydraulic chamber prevents oil leakage and contamination
- Resists high vibration and mechanical shock in engine compartments
- Compatible with Woodward PG, PGA, and PSG series governors
- Easy installation and connection to fuel control linkages
- Long service life with minimal maintenance
Application Scenarios:
- Large-bore diesel generator sets (1000–5000 kW)
- Marine main propulsion diesel engines
- Oil and gas field gas compression unit prime movers
- Steam turbine fuel and steam control valve actuation
- Heavy-duty industrial engine fuel regulation systems












