The float valve is designed as a safety valve in case of failure of the solenoid of Differential Valve. If the maximum level of fuel in the tank exceeds its maximum level during refueling, the Float Valve closes the Differential Valve with a hydraulic signal.
The Float Valve consists of a float on a lever with a ball at the end. The ball fits tightly to a seat in a rectangular flange. The Float Valve is mounted in the aircraft tank with 4 screws or rivets.
Ground fueling management system
It is used on the ground to refuel and defuel the aircraft, allowing safe use of full tank capacity.
