Sealed Flip-Top Cap Fuel Fills - EPA Compliant
Sealed Flip-Top Cap Fuel Fills - EPA Compliant

Sealed Flip-Top Cap Fuel Fills - EPA Compliant

Angled and Straight Models
By: Perko

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Government regulations now require that fuel fill caps be sealed so no fuel vapors can leak into the atmosphere.
When refueling is completed the cap is replaced and any fumes subsequently generated are forced through a vapor-adsorbing carbon canister to before going to atmosphere.

• Black or white polymer
• Integral refueling vent with flame arrestor
• No deck plate key or ground wire required
• Flip top cap
• Hose size: 1-1/2"
• Vent hose size: 5/8"
• Length of neck: 2-7/16"

Note — For clarity, Perko packages their new EPA compliant sealed deck fills in green packaging, while their older (grandfathered) non-sealed deck fills are packaged in their familiar blue packaging.

Heavy on the technical side...
The Jul, 31, 2011 EPA fuel emissions requirements have caused changes in most current fuel fills.
The fill used in the system must be sealed when closed to assure that vapors do not escape into the atmosphere.
As a result of this, the EPA requires the cap must provide a means of indicating that it has been properly closed.
This can be an audible clicking type noise or some sort of visual indication.

Builders building to these requirements will be looking for sealed caps.
When refueling is completed the cap is replaced and fumes are then forced through a carbon canister to atmosphere.
Or, in a pressure relief system, pressure builds up to above 1 psi before venting through a pressure relief valve to atmosphere.
Depending on the refueling strategy, there will be either a vented fill or a non-vented fill, but in all cases the cap will be a sealed under normal operating conditions.

This item meets the CARB and EPA requirements of U.S.C.G Safety Standards (July 31, 2011) for 40 CFR Parts 9, 60, 80 et a. Control of Diurnal Emissions from Non-road Spark-Igniton Engines and Equipment.

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