The overpressure safety valve protects the tank against overpressure after failure of the tank vent system and prevents fuel leakage from the tank.
The safety valve consists of a body with an inlet and outlet port. Inside the valve is a poppet which fits tightly to seat inside the valve body (metal to metal sealing). When the pressure in the tank rises above the preset level, the poppet moves from the seat and connects the tank with the ambient atmosphere.
Tank protection system
Prevents fuel tank damage caused by pressure changes due to ambient temperature changes or fuel consumption during flight, ensuring safe operation and lower aircraft maintenance costs.
