Technical Specifications:​ Detailed technical parameters are covered in the official Woodward Oil Metering Valve Installation and Operation Manual (Publication covering 9908-002, 9908-300, and similar). The valve operates within the hydraulic liquid fuel and water valve platform which includes:

Functional Features:​ Precision fuel metering; DCDT (DC Powered LVDT) position feedback sensor; dual coil electrohydraulic servo valve assembly; trip relay valve assembly; hydraulic filter assembly for contamination control.

Application Scenarios:​ Industrial gas turbine liquid fuel metering; works with Woodward hydraulic control systems and actuators for fuel flow regulation.

Material Composition:​ Corrosion-resistant alloy and stainless steel construction; FKM sealing elements suitable for liquid fuel environments.

Structural Features:​ The valve consists of a dual coil electrohydraulic servo valve assembly, trip relay valve assembly, hydraulic filter assembly, and DC powered LVDT (DCDT) position feedback sensor. Outlined in Figures 1-1a and 1-1b for liquid fuel pilot or A/B metering valve (high-pressure version) and liquid fuel bypass valve (high-pressure version).

Working Principle:​ The hydraulic liquid metering valve uses a dual coil electrohydraulic servo valve assembly to control the position of the metering valve plunger. A DCDT position feedback sensor provides position feedback to the control system. The bypass valve section senses fuel pressures to maintain regulated differential pressure across the metering port, ensuring accurate fuel flow proportional to control command.