Heavy Duty Gas Turbine Electric Fuel Valves and Actuators | Woodward

Electric Fuel Valves and Actuators

Eliminate hydraulic actuator problems and improve system
reliability in Heavy Duty Gas Turbines

Home Products Heavy Duty Gas Turbine Electric Fuel Valves and Actuators
HEAVY DUTY GAS TURBINE

Electric Fuel Valves
and Actuators

Heavy Duty Gas Turbines have increasingly been dispatched to support the grid during the renewable energy transition. These market conditions drive fleet owners to operate their assets as peakers, creating the need for frequent starts. Start-up reliability has become a key success factor for these units. Hydraulic gas fuel control valves and actuators have gotten the job done for decades, but not without known risks and issues that can result in failed startups and unplanned turbine downtime.

See why Platte River Power Authority made the switch to electric valves in the video.

Want to learn more about how going electric can help your plant?

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Common Problems with Hydraulic Actuators in Heavy Duty Gas Turbines

– Hydraulic fluid viscosity dependent on ambient temperatures leads to slower response times in cold temperatures – resulting in failed starts
– Fluid varnishing can lead to clogged servovalve passages resulting in failed starts or stops
– Potential of high pressure hydraulic leaks pose safety risks
– Premature seal failure – noise on hydraulic control circuits can lead to premature wear on hydraulic and gas seals
– No actuator/valve data to predict failure in advance of outages

Benefits of Electric

– Elimination of hydraulic fluid and associated problems with contamination, cold weather and leakage
– Higher reliability design inherent to electric actuation significantly increase maintenance service intervals
Improved control response and precision
– OEM Qualified and included with the majority of new Gas Turbines
– Compliant with NERC standards for cold weather preparedness
– Service Tool screen provides enhanced diagnostics for plant personnel and early indication of performance issues at the DCS operator terminal

Introducing Woodward’s electric
gas fuel control valves and actuators

Woodward’s next generation electric valves and actuators increase turbine reliability and availability.

Electric Inlet Guide Vane Actuator for Heavy Duty Gas Turbines
Electric Gas Fuel Pressure Control Valve for Heavy Duty Gas Turbines
Electric Gas Fuel Control Valve for Heavy Duty Gas Turbine

Easy Valve Installation

– Woodward can deliver this upgrade as a complete service including valve/actuator hardware, engineering and site labor
– Most valves are drop-in replacements and do not require piping modifications
– Work can be easily performed during any planned outage, minimizing downtime
– Servovalve interface option allows the installer to use existing signal wiring from the control system
– Alternate communication options for control system integration are available such as CAN Bus and Analog I/O for maximum flexibility
– Electric actuators are paired with a remote Digital Valve Positioner (DVP) that controls the actuator operation and serves as the customer interface for power/signal wiring and digital communications. Multiple DVPs can be packaged within a stainless steel cabinet and prewired from the factory to greatly reduce commissioning time