Functional Features:​ Built-in differential pressure regulator maintains constant pressure differential; precision-machined metering sleeve ports; optional bypass relief port compatible with 2-way and 3-way engine fuel shut-off valves; optional solid piston limiter for acceleration fuel limiting; optional LVDT position feedback for closed-loop electronic control.

Application Scenarios:​ Suitable for various liquid fuel industrial gas turbines including power generation, mechanical drive, and marine propulsion systems. Compatible with diesel, kerosene, gasoline, naphtha, gas turbine fuel, fuel oil, and compliant biodiesel.

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

Material Composition:​ Valve body available in aluminum alloy or stainless steel; internal flow components use corrosion-resistant materials; seals use fluorocarbon rubber (FKM).

Structural Features:​ Rotary sleeve metering structure; the metering sleeve is driven by an external actuator through a lever mechanism. The valve body integrates a bypass valve and differential pressure regulator; fuel connections use MS33786-20 standard interface; optional overtravel drain interface.

Working Principle:​ Fuel enters the valve body from the inlet, passes through the metering port for precise regulation, and is delivered to the gas turbine combustion chamber; excess fuel returns to the tank through the bypass valve. The built-in differential pressure regulator automatically adjusts the bypass valve opening through a bellows and spring mechanism, maintaining a constant pressure differential across the metering port. When the actuator adjusts the metering sleeve angle, the effective flow area of the metering port changes, achieving precise flow control under constant differential pressure.