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Woodward 8561-645
Product Name: PSG Series Hydraulic Governor
Product Introduction: A heavy-duty, self-contained hydraulic governor for medium-to-large bore diesel and gas engines, providing precise mechanical speed regulation without electronic components. Integrates hydraulic amplification, flyweight speed sensing, and fuel control actuation, ideal for extreme environments with no external power.
Detailed content
Technical Specifications:
- Speed Regulation Range: 300–1800 RPM (adjustable)
- Control Mode: Pure mechanical-hydraulic isochronous/droop control
- Output Torque: 25–40 Nm (fuel pump actuation)
- Hydraulic Fluid: ISO VG 32 hydraulic oil
- Operating Temperature: -20 °C to +85 °C
- Enclosure: Cast iron, IP30 protection
- Weight: 28 kg
- Mounting: Engine-side or panel-mounted
Functional Features:
- Fully mechanical-hydraulic operation (no external power required)
- Isochronous and droop speed control modes
- Built-in mechanical overspeed trip protection
- External adjustment knobs for speed, gain, and droop
- Sealed housing resists dust, oil mist, and moisture
- Rugged design withstands high engine vibration
- Low maintenance with no electronic wear parts
Application Scenarios:
- Large-bore diesel generator sets (500–3000 kW)
- Marine main propulsion diesel engines
- Oil and gas field gas compression units
- Mining and construction heavy-duty engines
- Remote off-grid power stations with no electrical infrastructure
