Woodward 8251-075
Product Name: EG-3P Series Electro-Hydraulic Actuator
Product Introduction: A compact, high-performance electro-hydraulic proportional actuator designed for small-to-medium bore diesel and gas engines. It converts electrical control signals into precise mechanical motion to regulate fuel flow, ensuring accurate speed and load control in generator, pump, and compressor applications.
Detailed content
Technical Specifications:
- Input Signal: 4–20 mA (proportional control)
- Output Torque: 8.5 N·m (6.3 ft-lb) maximum
- Rotation Angle: 0–75 degrees (adjustable travel limits)
- Hydraulic System: Self-contained, with integral pump and reservoir
- Power Supply: 24 VDC (18–32 VDC operating range)
- Operating Temperature: -40 °C to +85 °C
- Enclosure: Cast iron, IP54 protection grade
- Weight: 10 kg
- Shaft Diameter: 20 mm (standard fuel pump connection)
Functional Features:
- Precise proportional control of fuel flow for small-to-medium engines
- Self-contained hydraulic system (no external oil supply required)
- Compact design for easy installation in limited space
- 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
Application Scenarios:
- Medium-sized industrial diesel generator sets (200–1000 kW)
- Marine auxiliary generator and pump engines
- Agricultural irrigation and industrial pump drives
- Construction machinery prime movers
- Oil and gas field small-bore gas engines












