Fill Caps

Auto-Valve’s LIGHTNING PROOF gravity fuel filler caps are engineered to lock, seal, and serve as clear identifiers for the gravity fill ports of aircraft fuel tanks. These caps play a critical role in maintaining the integrity of an aircraft’s fuel system by ensuring a secure seal, preventing leaks, and enhancing safety.

Designed and fully qualified to meet military standards, Auto-Valve offers truly lightning-proof fuel caps for both fuel and oil fill applications, providing superior protection in demanding environments.

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