Liquid Fuel Metering Valves for Gas Turbines

Woodward Liquid Fuel Metering valves accurately meter liquid fuel to a gas turbine during acceleration, steady-state operation, and deceleration. May be used for almost any liquid-fueled industrial gas turbine application within its range of fuel flow.

1907 Large Liquid Fuel Valve

The Woodward 1907 large liquid fuel valve accurately meters liquid fuel to a gas turbine during acceleration, steady-state operation, and deceleration. The valve may be used for almost any liquid-fueled industrial gas turbine application within its range of fuel flow (70 to 340 kg/h; 150 to 25 000 lb/h). The 1907 valve is typically operated with a hydro-mechanical actuator.

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Liquid DLE Fuel System

In the Woodward Liquid DLE Fuel system a single positive displacement pump is used to provide fuel to the system. The Bypass Valve (BPV) is used to provide the normal system bypass and also serves to provide closed loop control of the system pressure to the three throttling valves. Each of the three throttling valves meter fuel independently to the engine manifolds. Fuel flow accuracy of better than 2.5% of point mass flow is achieved by the fuel metering valves without expensive transducers or individual valve characterizations.

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Liquid Shutoff Valve 25

The Woodward Liquid Shutoff Valve 25 is a three-way valve designed to rapidly shut off all liquid fuel flow and prevent leakage to the turbine. In the de-energized state, the valve diverts inlet flow to bypass ports, preventing pressure damage to positive displacement fluid systems. Normal installation of the 21.5 lb (9.8 kg) valve is in the fuel line between the fuel regulating valve and the turbine. The valve diverts flow from the discharge to bypass ports any time the operating electrical signal is lost.

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LQ Series of Liquid Fuel Metering Valves

The Woodward LQ series of liquid fuel metering valves are designed for use on industrial and aero-derivative gas turbine engines in the 1000 kW to 42 000 kW output power range. The assemblies provide reliable, cost-effective interfaces between electronic engine control systems and gas turbines used in power generation, mechanical drive, and marine applications. The LQ valves utilize corrosion resistant, shear-type metering components that are positioned by high torque electric actuators to assure extended operation in all types of liquid fuel service.

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Three-Way Fuel Oil Bypass Control Valve

The Woodward Three-way Fuel Oil Bypass Control Valve is used to control the flow of liquid fuel to a gas turbine. The valve contains no feedback device, so it relies on external flow measurement as a form of feedback to control the flow of fuel to the turbine. Upon loss of electrical command signal or hydraulic pressure, the valve will divert fuel to the bypass port for a safe turbine shutdown. The valve utilizes a fully integrated valve and actuator design. The design is equivalent to a dual acting electrohydraulic actuator and a three-way bypassing valve.

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Three-way Fuel Oil Stop Valve

The Woodward Three-way Fuel Oil Stop Valve is a two position valve used to shut off the flow of liquid fuel to the turbine and divert it to the fuel pump suction. The valve position is controlled by a low level trip pressure acting on the pilot operated trip circuit integrated into the valve. The valve uses a failsafe spring to ensure the shutoff of fuel from the turbine on loss of hydraulic control pressure or hydraulic actuation pressure. The valve utilizes a fully integrated valve and actuator design. This design is equivalent to a single acting hydraulic actuator and a three-way shut-off valve.

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