Woodward 8574-140
- Product Name: PGD Series Hydraulic Governor
- Product Description: Self-contained hydraulic governor for diesel engines and steam turbines, integrating an oil pump, hydraulic amplifier, and control mechanism for precise speed regulation.
- Technical Specifications:
- Speed Range: 300–1200 RPM (adjustable)
Detailed content
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- Hydraulic Oil Pressure: 130–180 PSI (9.0–12.5 bar)
- Speed Droop: 0–6% (adjustable)
- Actuator Output: Rotary (30° travel)
- Operating Temperature: -10 °C to +85 °C
- Weight: 7.7 kg
- Key Features:
- Self-Contained Hydraulics: Built-in oil pump eliminates external hydraulic supply requirements.
- Isochronous Operation: Maintains constant speed regardless of load changes (single-unit operation).
- High Reliability: All-mechanical design with no electronics for use in extreme environments.
- Adjustable Speed Setpoint: Manual speed adjustment via front-panel dial or remote control.
- Applications:
- Industrial diesel generators (500 kW–5 MW)
- Steam turbine speed control in process plants
- Remote power generation sites with no electrical infrastructure












