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Woodward 9907-672
Product family: Woodward GS6 gas control valve.
Product brief: The 9907-672 is a GS6-series electrically driven gas control valve for fuel-gas metering in industrial and aircraft gas turbine engines. It uses a self-cleaning shear-type metering action and dual resolvers with dual flexure drive plates.
Detailed content
Key specifications:
- Valve type: Electric gas control valve
- Metering: Self-cleaning shear-type action protects the control port from contamination
- Drive: Dual resolver + two flexure drive plates
- Fuel / ambient temperature: up to 200 °F (93 °C)
- Command: 4–20 mA (typical for GS family)
- Larger port area than GS3, for higher fuel-gas flow
Functional highlights: Precise gas-flow control via resolver-positioned rotary sleeve; self-cleaning shear gap; dual-drive redundancy for safety-critical fuel metering.
Applications: Fuel-gas control for industrial gas turbines and aircraft gas turbine engines.
Installation & safety notes: Install per the GS6 product manual. Fuel gas must be filtered (20 µm or finer is typical for the GS family). Confirm the command signal and resolver excitation before applying power. The valve handles fuel gas at up to 93 °C—ensure proper sealing, bonding, and hazardous-area compliance.
