Digital guide
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Woodward 9902-383-G
Product Name: ProAct Gen 3 Position Controller (Electric Actuator with Integral Driver) / 3055 Liquid Fuel Metering Valve Actuator.
Product Overview: The 9902-383-G belongs to Woodward’s 9902 family. Given the “-G” suffix and its pairing with 9902-358 in the 3055 FMV/A documentation, it functions as the actuator element of the 3055 liquid fuel metering valve assembly. The 9902 family also encompasses the ProAct Gen 3 electric actuator platform with integral driver, which represents the closest verified Woodward actuator technology for this part number.
Detailed content
Technical Specifications: (Based on ProAct Gen 3 platform and 3055 FMV/A context)
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If ProAct Gen 3 platform: 72.5° rotary output, 0.625-36 serrated tooth terminal shaft, analog 0–5 Vdc / 4–20 mA / CAN / PWM command inputs, integral digital driver, on-engine base or flange mount, configurable parameters, CAN communications, diagnostic event log.
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If 3055 FMV/A actuator: operates as the driving element of the 3055 liquid fuel metering valve assembly per Manual 26211.
Functional Features: Extremely fast, bidirectional, electronically positioned actuation; fully electric with no external hydraulic supply; integral driver compatible with a broad range of control systems; configurable parameters; CAN communications; advanced diagnostics; optional rotation scale and indicator for visible travel detection.
Application Scenarios: As 3055 actuator — liquid fuel metering in industrial gas turbines; as ProAct variant — fuel rack positioning, timing control, throttle valve, and wastegate positioning on reciprocating engines and gas turbines.
Material Composition: Industrial metallic actuator housing; 0.625-36 serrated tooth terminal shaft; construction materials per Woodward 3055 / ProAct platform standards.
Structural Characteristics: On-engine mountable design (base or flange); integrated driver electronics; companion to 9902-358 in the 3055 FMV/A assembly.
Working Principle: The actuator accepts a position command signal from a speed control or system controller. The integral digital driver positions the output shaft electronically in both directions, providing closed-loop rotary motion to drive the associated valve or fuel metering element.
Installation Requirements: For 3055 FMV/A — install per Woodward Manual 26211 (Revision B). For ProAct variant — mount on-engine per mechanical drawings, use shielded cable with proper grounding, configure and calibrate via the Woodward ProAct Service Tool.
Usage Notes: Must be configured and calibrated before operation; unauthorized modification or operation outside specified limits constitutes misuse and excludes warranty; the prime mover must be equipped with an independent overspeed shutdown device; follow all PPE requirements during installation and service.
