Woodward Industrial Fuel Control Valves

Gas Fuel Control Valves for Gas Turbines

SonicFlo™ Gas Fuel Control Valve

Woodward’s SonicFlo™ hydraulically actuated valve controls gas flow to any size industrial or utility gas turbine.

The unique design yields a linear flow versus stroke characteristic that is unaffected by discharge pressure up to a pressure ratio (P2/P1) of at least 0.8 for Standard Recovery and at least 0.92 for High Recovery. (Optional flow profiles are available.)

The integral hydraulic actuator is a single-acting, spring-loaded design for failsafe operation. The servovalve is electrically redundant with a triple coil design and dual or triple redundant LVDT’s (linear valve displacement transducers).

Valve sizes are available from 2” to 8,” with multiple flow profiles for each valve size. ANSI Class IV seat leakage is standard, with an optional Class V available. Optional Trip Circuits are available to fit any application.


Maximising the SonicFlo Gas Fuel Control Valves

The Woodward SonicFlo© Gas Fuel Control Valve (GFCV) is the preferred valve for GE Heavy Duty Frame Gas Turbines. The SonicFLow GFCV provides extremely precise fuel metering with fast shut-off capabilities for large industrial gas turbines. The concept minimises operational losses and increases start reliability.
As with all high precision components in critical applications the GFCVs should be overhauled in line with the manufacturers recommended overhaul interval of 50,000 operating hours or six (6) years. To ensure reliability of the GFCV PM Control Systems offers an annual on-site service that maintains availability and reduces risk of unplanned outage. This annual service is a recommended best practice by Woodward and includes;
• Hydraulic Filter Assembly Service.
• Servo Valve Service.
•  Replacement of the LVDT.
•  Clocking of the actuator to the valve.