Functional Features:​ Shear-type self-cleaning metering principle with no complex internal flow passages for strong contamination resistance; integrated brushless DC actuator with no gear backlash for high positioning accuracy; remote electronic driver unit for closed-loop valve position control; 4-20 mA valve position feedback output; remote emergency shut-off capability.

Application Scenarios:​ Applicable to liquid fuel supply systems for power generation gas turbines, mechanical drive gas turbines, and marine gas turbines. Can process diesel, aviation kerosene, gasoline, and compliant biodiesel fuels.

Performance Parameters:​ Metering flow accuracy within ±5% of actual or ±0.5% of maximum flow. Stroke time from fully open to fully closed is less than 100 milliseconds; emergency shut-off response time is less than 50 milliseconds.

Material Composition:​ Flow components use corrosion-resistant alloy materials; sealing components use fluorocarbon rubber; overall structure provides fuel corrosion resistance and high-temperature aging resistance.

Structural Features:​ Uses single-speed frameless resolver as position feedback element with resolver excitation parameters of 4 V AC, 5000 Hz, resistance 28 to 34 ohms (at 20°C). Compact valve body design; electrical interface uses standard terminal block.

Working Principle:​ The driver receives a 4-20 mA command signal from the control system, driving a brushless DC motor to rotate the metering sleeve, adjusting the metering port opening. Fuel passes through the metering port under constant differential pressure, with flow precisely proportional to the port area, achieving fuel supply proportional to the input signal. The resolver real-time detects rotor position and feeds back to the driver, forming closed-loop position control.