8901-037 | Woodward Turbo & Engine Valve Booster Actuator

Product Description

The Woodward 8901‑037 Booster Servomotor is a high-performance single-cylinder servo actuator designed to amplify control signals for precise turbine and engine valve operation. It converts small electrical or pneumatic inputs into high-torque mechanical motion, ensuring accurate valve positioning under heavy load conditions.

Compact yet rugged, the 8901‑037 withstands harsh industrial environments, including marine propulsion, power generation, and oil & gas applications. Moreover, its robust construction and vibration resistance allow reliable operation in systems with dynamic loads or continuous operation.

This booster servomotor integrates seamlessly with turbine governors, fuel racks, and other industrial control systems. Its single-cylinder configuration is ideal for installations requiring space efficiency without compromising actuation performance.

Technical Specifications

• Product type: Booster Servomotor (single-cylinder)

• Manufacturer: Woodward

• Model number: 8901‑037

• Function: Amplifies control signals for mechanical actuation of turbine/engine valves

• Power supply: 24 VDC nominal

• Operating temperature: –40 °C to +70 °C

• Shock resistance: 10 g, half-sine wave, 11 ms

• Vibration resistance: 1 mm peak-to-peak (2–13.2 Hz); 0.7 g (13.2–150 Hz)

• Relative humidity: 5% to 95%, non-condensing

• Certifications: Suitable for hazardous locations

• Dimensions: 25 × 9 × 4.6 cm

• Weight: 0.5 kg

• Variants: Single-cylinder (8901‑037, ‑043, ‑051), tandem (8901‑065, ‑067), two-stage (8901‑091, ‑103)

FAQ

Q1: What type of servomotor is the 8901‑037?
A1: It is a single-cylinder booster servomotor designed for high-torque valve actuation.

Q2: Which applications is it suitable for?
A2: Steam turbines, compressors, generator sets, marine propulsion, and oil & gas machinery.

Q3: What is the operating temperature range?
A3: The 8901‑037 operates from –40 °C to +70 °C under industrial conditions.

Q4: Can it withstand vibration and shock?
A4: Yes, it resists 10 g shock and 0.7 g vibration across 13.2–150 Hz frequencies.

Q5: Are other variants available?
A5: Yes, tandem and two-stage variants are offered for higher torque or stroke requirements.