Valves & Valve Fittings

Leading Manufacturer, Supplier & Retailer of Electric Liquid Fuel Valve, LQ6 Liquid Fuel Valve with Onboard Driver and Digital Valve Positioner.

Electric Liquid Fuel Valve

Woodwards ELV electric liquid fuel valve is a small, liquid fuel-metering valve with an all-electric actuator to control the fuel flow to be supplied to a small industrial gas turbine. The ELV controls the actuator proportiona lly to a 420 mA or 20160 mA signal from a Woodward electronic control. The ELV does not need the conventional lin kage system between an actuator and a fuel-metering valve due to incorporation of an actuator and a valve. Applying an electric actuator eliminates an oil-pump -driving-gear system and hydraulic circuits, and this helps the designer cut the cost of a control system. If an electric control that accepts a 420 mA CDP signal is used, t he ELVs flow schedule will be changeable based on this signal. Users can standardize the fuel valve by using the ELV because the ELV can control various gas turbines with different flow schedules by controlling each turbines acceleration fuel schedule with an electric control.

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LQ6 Liquid Fuel Valve With Onboard Driver

The LQ6 provides the flow range, accuracy, and response characteristics necessary for the control of industrial gas turbines in the 3 to 15 MW power range. By integrating Woodwards proprietary electric actuation technology with a proven fuel-metering concept, exceptional performance and robustness are achieved in a compact, cost effective package. The use of on- board driver electronics simplifies system design and reduces installation space, time, and cost. Please refer to Woodward Installation and Operation Manual 26515 for complete details of this product, its application and installation.

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Digital Valve Positioner

Woodwards Digital Valve Positioner (DVP) is the most advanced for use on all Woodward actuator and valve assemblies. The DVP provides a customized customer interface with advanced diagnostics to provide the most reliable system. The DVP is designed to control Limited Angle Torque and Brushless DC motor types. The DVP driver compares an input position demand signal to the valveactuator resolver feedback signal and generates an appropriate drive signal to the motor. If the DVP is connected to a valve or actuator that contains a smart ID module, the DVP will automatically read the critical valveactuator information to set the internal driver configuration for that specific unit. Once that auto-detection and configuration action has occurred the system is ready for use. Several DVP options are available. Input power is either 24VDC or 125VDC and IP30 or IP56 enclosures can be supplied. Configurable input signal protocols include EGD (Ethernet), CANopen, Analog (4-20ma or 0-5Vdc), PWM (Pulse Width Modulation). Connector, terminal block or conduit options are available to handle various wiring needs.

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