Woodward Electric SonicFlo gas valves provide extremely precise fuel metering and fast response shut-off for large industrial gas turbine engines with single or multiple combustion manifold systems. The SonicFlo concept minimizes system pressure losses and eliminates the need for valve discharge pressure measurement, simplifying the fuel system while improving performance. Electric actuation via the EM Digital Driver delivers significantly better accuracy and response than conventional hydraulic valves.
Key Features
Metering & Performance
- Extremely precise fuel metering for large industrial gas turbines
- SonicFlo concept minimizes system pressure losses
- Eliminates need for discharge pressure measurement and compensation
- Valve position control accuracy of ±0.1% of full travel
- Helical compression spring forces valve closed on loss of power, trip, or feedback signal
- ANSI B16.104 Class IV shut-off capability
Actuation
- Plug-style metering valve with electric motor-driven leadscrew actuator
- Integral brushless DC motor with speed reduction gearing
- Recirculating ball-type leadscrew for precise linear motion
- Resolver position feedback transducer
- Woodward EM Digital Driver for actuation, position control, and fault management
- Model-based control algorithms for robust operation across friction and spring load variations
- PC/Windows-based setup software with multiple communication protocols
Applications
- Large industrial gas turbine fuel metering
- Single and multiple combustion manifold systems
- Dry Low Emission (DLE) turbine configurations
- Systems requiring elimination of hydraulic fuel valve actuation
Drake Controls Services
Drake Controls is a Woodward Authorized Distributor. We stock SonicFlo valves and EM Digital Drivers, and provide repair, overhaul, and field support. For repair or overhaul, submit a repair request or email service@drakecontrols.com.