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FUEL DEMAND VALVE
©2010 Attwood Corporation
Lowell, MI 49331
www.attwoodmarine.com
A-FUELDV-10
Attwood’s Fuel Demand Valve (FDV) provides a unique
solution
for managing pressurized fuel lines and fuel tanks that are required due to EPA regulatory
requirements for portable fuel system evaporative emission controls. The Fuel Demand Valve eliminates
pressurized fuel from reaching downstream fuel lines and your engine, ensuring that fuel is
provided to the engine on demand rather than as a result of pressure in the tank.
Installs in-line between your fuel tank and primer •
bulb/fuel pump
Eliminates fuel fi tting spray when connecting and •
disconnecting fi ttings at the engine
Eliminates fuel spill due to pressurized fuel tanks and fuel lines•
Pad printable: Customizable with your company logo•
Eliminates potential service and warranty issues related to •
pressurized fuel lines
Available individually or as part of a fuel line assembly•
Count On Attwood as Your Partner for Safe, Regulatory-Compliant
(EPA & CARB), Cost Effective Portable and Integrated Fuel Systems.
CFR 40 1060.105 (c)
Effective January 1, 2010 – Portable marine fuel tanks and associated fuel-system components must meet the following requirements:
1 They must be self-sealing (without any manual vents) when not attached to the engines. The tanks may not vent to the atmosphere
when attached to an engine.
2 They must remain sealed up to a positive pressure of 24.5 kPa (3.5 psig); however, they may contain air inlets that open when there is a
vacuum pressure inside the tank. Such fuel tanks may not contain air outlets that vent to the atmosphere at pressures below 34.5 kPa (5.0 psig).
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Patent
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OUTLET
TO ENGINE
INLET
FROM TANK
Attwood Part Number 8M0044687 8M0044688 8M0044689
Operating Temperature -20˚C to 80˚C (-4˚F to 176˚F) -20˚C to 80˚C (-4˚F to 176˚F) -20˚C to 80˚C (-4˚F to 176˚F)
Storage Temperature -40˚C to 80˚C (-40˚F to 176˚F) -40˚C to 80˚C (-40˚F to 176˚F) -40˚C to 80˚C (-40˚F to 176˚F)
Operating Input Pressure 138 kPa (20 psi) protected for 138 kPa (20 psi) protected for 138 kPa (20 psi) protected for
276 kPa (40 psi) psi pressure spike 276 kPa (40 psi) psi pressure spike 276 kPa (40 psi) psi pressure spike
Minimum Engine Vacuum -1 kPa (-6" gasoline) -4 kPa (-21" gasoline) -7 kPa (-35" gasoline)
Flow Performance 125 L/H (33 GPH) at <2 kPa (10" gasoline) 125 L/H (33 GPH) at <2 kPa (10" gasoline) 125 L/H (33 GPH) at <2 kPa (10" gasoline)
Hose Size 8 mm - 10 mm (5/16" - 3/8") 8 mm - 10 mm (5/16" - 3/8") 8 mm - 10 mm (5/16" - 3/8")
Siphon Protection None 0 mm - 381 mm (15") 381 mm - 762 mm (30")
Manual Override Yes Yes Yes
Application Above Deck Above Deck Above Deck
Text Color White Red Yellow