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Оборудование компании Woodward

The valve minimizes the moving parts within the fuel metering element, actuator rotor, and redundant position feedback resolvers to maximize accuracy over the entire operating range.
Available actuator torque has been increased to provide more robust performance in the harshest conditions.
Accurate flow versus input signal characteristics are achieved on each valve version by precision forming of the valve metering port, the use of extended valve travels, and high precision resolvers for valve position feedback.
The GS valves can achieve flow turn-down ratios in excess of 100 to 1.
The positive flow shut-off rating meets the requirements of ANSI B16.5 Class IV across all valve sizes and ports.
The valve driver and wiring terminal box are integral with the valve assembly, eliminating interconnecting wiring, reducing package size requirements, and lowering the installed cost.
The on-board driver can be interfaced to the turbine control via redundant 4–20 mA input and feedback signals or through redundant CANopen control networks.
The GS-Series can be configured to accept both the 4–20 mA signal and CANopen command in a redundant configuration.
With this arrangement, if either demand signal fails, the driver will switch to the healthy input demand signal.
The valve driver operates with a 90-140 VDC power supply.