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Woodward 8404-4005
Product Overview
A compact, high-precision servo control valve designed for fuel and steam flow control in industrial engines and turbines. It integrates a hydraulic servo valve, actuator, and position feedback sensor into a single unit, providing accurate flow regulation with fast response. The valve is commonly used in Woodward control systems for precise fuel/steam metering.
Detailed content
Technical Specifications
- Hydraulic Supply Pressure: 6.9–20.7 bar (100–300 psi)
- Control Signal: 4–20 mA DC
- Flow Capacity: 50 L/min maximum
- Response Time: <80 ms full stroke
- Position Feedback: Integrated LVDT (Linear Variable Differential Transformer)
- Operating Temperature: -40 °C to +85 °C
- Protection Grade: IP54 dust and splash resistant
- Dimensions: 150 mm × 100 mm × 80 mm
- Weight: 1.58 kg
Functional Characteristics
- High-precision flow regulation with closed-loop position control
- Fast response time for dynamic load changes
- Integrated LVDT feedback for accurate position monitoring
- Compact design for easy installation in tight spaces
- Robust construction for vibration and temperature resistance
- Sealed housing for resistance to oil and moisture
- Compatible with all Woodward electronic speed and process controllers
Application Scenarios
Large industrial diesel generators, marine propulsion engines, gas turbine fuel control systems, petrochemical compressor drives, and steam turbine governor systems.
