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Woodward 9903-209
Product Overview
A high-torque electric valve actuator from the ProAct series, designed for precise rotary control of industrial valves, dampers, and fuel racks. It integrates a brushless DC motor, gearbox, and position feedback sensor into a single, sealed unit, eliminating the need for external hydraulic systems. The actuator accepts standard industrial control signals and provides accurate positioning with fast response.
Detailed content
Technical Specifications
- Power Supply: 18–32 VDC (24 VDC nominal), 5 A maximum current
- Control Signal: 4–20 mA, 0–5 VDC, or PWM (configurable)
- Mechanical Travel: 90° rotation (adjustable end stops)
- Torque Output: 75 Nm (55.3 ft-lb) continuous, 150 Nm peak
- Response Time: <150 ms full stroke
- Position Feedback: Integrated 4–20 mA transmitter or potentiometer
- Protection Grade: IP65 (dustproof, oil-proof, waterproof)
- Operating Temperature: -40 °C to +85 °C
- Dimensions: 180 mm × 140 mm × 110 mm
- Weight: 5.0 kg
Functional Characteristics
- Brushless DC motor design for high efficiency and long service life
- Integrated position feedback for closed-loop control accuracy
- Built-in over-current, over-temperature, and stall protection
- Compact size for easy mounting in tight spaces
- Low power consumption for efficient operation
- Sealed housing for resistance to vibration, oil, and moisture
- Field-configurable rotation direction and end stops
Application Scenarios
Industrial gas and steam turbine fuel valve control, HVAC damper control, process industry valve automation, marine engine fuel regulation, and power plant auxiliary system actuation.
