Woodward Liquid Fuel Metering valves meter liquid fuel during acceleration, steady-state operation, and deceleration to gas turbines.
1907 Large Liquid Fuel Valve
The Woodward 1907 large liquid fuel 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 as well as in conjunction with an EM35 actuator and EM35 digital driver, the 1907 valve delivers the demanding accuracy needed for DLE applications.
Liquid DLE Fuel System
A single positive displacement pump in the Woodward Liquid DLE Fuel system is used to provide fuel to the system to the gas turbines. 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.
Liquid Shutoff Valve 25
The Woodward Liquid Shutoff Valve 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.