Woodward GS-Series (GS40/50) Description
Description
The GS-Series is an electrically actuated fuel valve with an on-board electronic
driver. The self-cleaning, shear-type metering action keeps the metering port free
from performance-limiting deposits of gas condensates, contaminants, and system
debris. 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 is 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
B16.104 Class IV across all valve sizes and ports.