Gas Fuel Metering for Gas Turbines3103/TM55 The 3103 is designed to operate with sour gas (high sulphur content gas) that can cause problems for other gas valves. This extremely accurate assembly successfully combines our state of the art electrohydraulic technology with our proven mechanical hardware.Learn more from 3103/TM55 product spec 40106.3103/EM35  The 3103 gas valve is a stainless steel valve capable of metering gas flow between 50 and 40,000 pph. It is designed to be corrosion resistant and self-cleaning, allowing it to operate in sour gas environments (high sulfur content gas) that can cause problems for other valves. Learn more from 3103/EM35 product spec 40156 or 3103/EM35MR product spec 03209.DLE Gas Fuel Metering  Woodward is a leader in fuel metering for Dry Low Emissions Engines. For applications requiring from 2 up to 5 parallel paths Woodward can provide the fuel metering system and the control. Our DLE fuel metering systems are capable of 2.0% of point, mass flow accuracy and our current programs cover multiple small industrial engines and aero-derivatives.
SonicFloTM Gas Fuel Control Valve  The SonicFloTM valve controls the flow of gas fuel to the combustion system of an industrial or utility gas turbine. The unique design yields a linear flow characteristic unaffected by discharge pressure up to a pressure ratio (P2/P1) of at least 0.8. The design also integrates the valve and actuator into a compact assembly. The key characteristics of this valve are a highly linear critical gas flow versus stroke relationship at constant upstream pressure. The integral actuator is a single-acting spring-loaded design for failsafe operation. The actuator includes an onboard hydraulic filter for last chance filtration of the fluid to ensure reliability of the servovalve and actuator. The servovalve is electrically redundant with triple coil design. Feedback for the actuator is provided by a dual coil, dual rod LVDT (linear variable differential transformer) directly coupled to the hydraulic piston.
HGV Hydraulic Globe Valves GS System
On-Engine Accessories |
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The Hydraulic Globe Valves (HGV) control the flow rate of natural gas fuel to various stages of an industrial gas turbine combustion system. The unique design integrates the valve and actuator into a cost-effective, compact assembly. The valve is designed to provide a highly accurate flow-versus-stroke characteristic. The integral actuator is a single-acting spring-loaded design that will quickly close the valve upon loss of electrical or hydraulic signals. An integral hydraulic filter assures the reliability of the servovalve and actuator components. The servovalve is an electrically redundant dual-coil design. A dc-powered LVDT (DCDT) provides feedback for the actuator.
The Gas Shutoff Valve is designed to provide extremely fast shutoff to gaseous flow and to be used for emergency and normal shutdown operation. The valve operates at pressures up to 900 psia and its all stainless steel construction assures availability of the valve under all operating conditions. The valve design allows minimum pressure drop by utilizing a straight through flow, this also keeps all critical moving parts and seals out of the flow stream.
Woodward GS series gas fuel metering systems are designed for use on industrial gas turbines in the 200 KW to 30 MW output power range. The assemblies provide reliable, cost effective interfaces between electronic engine control systems and gas turbines used in power generation, compressor, and mechanical drive applications.
Woodward provides a variety of actuators, pumps, servovalves, and hydraulic control units to deal with variable geometry needs on the engine. Typical applications control variable stator vanes, inlet guide vanes, variable bleed valves, thrust balance, etc.
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