Limit Fill Valve

Valve is a combination vapor flow regulator and pressure relief valve. It regulates vapor flow from fuel tank vent line into the charcoal canister or cylinder head cover. Valve consists of a housing, a spring loaded diaphragm and a diaphragm cover. As tank vent pressure increases, diaphragm lifts permitting vapor to flow through. Pressure under which this occurs is 4" to 6" of water.