Fuel / Air Separator for Tank Vent - EPA Compliant
Air-Fuel Separator - EPA Compliant
Air-Fuel Separator - Heat Shield Protected, EPA Compliant
Perko Air-Fuel Separator - EPA Compliant
Air-Fuel Separator - EPA Compliant

Fuel / Air Separator for Tank Vent - EPA Compliant

Mini-Surge Tank, 5/8" Hose | Protects Carbon Canisters | Keeps Liquid Fuel From CC
By: Perko

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The Air-Fuel Separator is a mini surge tank which is installed in the tank vent line, near the fuel tank in installations where, due to vessel tilting, liquid fuel can enter the vent lines.
The Separator allows vapors to pass through to the carbon canister further down the vent line, but captures any small amounts of fuel that have entered the vent line.
This fuel then drains back into the tank through a separate return line, thus protecting the carbon canister from liquid fuel.

Air-Fuel Separators provide two primary benefits:
They can solve fuel tank access problems by allowing all required tank connections to be located at one easy-to-reach location on the tank.
They can reduce installation costs by reducing the number of tank vent valves required.

• Air-Fuel Separator can be used instead of floated tank vent valves mounted on the tank
• Perko A/F Separators mount using the same "floating bracket" system used on Perko/Delphi carbon canisters.
• A 0588 series Tank Vent Valve is mounted inside each Perko A/F Separator giving it rollover protection, overpressure relief, and the restriction needed to aid in automatic pump shutoff.
• A Heat Shield protected model is available for use in engine compartment installations. See Related Products

Properly installed, A/F Separators can replace tank vent valves. By running internal vent lines (in either plastic or aluminum tanks) and replacing the tank vent valves with an air fuel separator one can eliminate the need to provide access to distant corners of the tank.

Perko's Air Fuel Separator must be positioned horizontally above the highest level that fuel in the tank can reach during full tilt or storage. The further away from the port/starboard center-line of the tank that the air fuel separator is located, the higher it must be positioned above the tank.

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