Fill limit vent valve (FLVV), Emissions control

Eaton’s Fill Limit Vent Valves (FLVV) prevents overfilling of the tank during a refueling event. Once the fuel tank has reached its maximum fill level the FLVV will close. Throughout the refueling event fuel vapor can escape through the FLVV to the canister.  

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DUAL FUNCTION VALVE FOR FUEL TANKS - Patent 1786645

Fuel Tank Valves

PERKO Inc. - Catalog - Fuel System Components - EPA Compliant Sealed Flip Top Cap Fills for 1-1/2 Hose with VPR - Angled Neck [1428]

Compact combo valve, FLVV and GVV fuel tank vent valve

PERKO Fuel Systems - Components - Fill Limit Valves

Method and system for fuel system leak detection Patent Grant Dudar April 6, 2 [Ford Global Technologies, LLC]

US7147017B2 - Fill limit vent valve assembly - Google Patents