FUEL DEMAND VALVE

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 fitting spray when connecting and disconnecting fittings 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

OUTLET TO ENGINE

Patent Pending

Count On Attwood as Your Partner for Safe, Regulatory-Compliant

INLET

(EPA & CARB), Cost Effective Portable and Integrated Fuel Systems.

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

 

 

 

 

 

CFR 40 1060.105 (c)

Effective January 1, 2010 – Portable marine fuel tanks and associated fuel-system components must meet the following requirements:

1They 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.

2They 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).

©2010 Attwood Corporation Lowell, MI 49331 www.attwoodmarine.com A-FUELDV-10

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Attwood 8M0044687, 8M004689 manual Attwood’s Fuel Demand Valve FDV provides a unique, Inlet, CFR 40 1060.105 c, From Tank

8M0044687, 8M0044688, 8M004689 specifications

The Attwood 8M004689, 8M0044688, and 8M0044687 models are renowned products within the marine industry, each designed to enhance the boating experience through innovative engineering and advanced technology. These models are specifically developed to cater to the needs of boaters, ensuring that both safety and convenience are prioritized.

The Attwood 8M004689 serves as a heavy-duty bilge pump, recognized for its reliability and efficiency. It features a powerful motor that provides robust water displacement capability, allowing users to effectively manage bilge water in various boating conditions. A key element of this model is its superior build quality, which includes a corrosion-resistant housing that withstands the harsh marine environment. The automatic operation feature coupled with a built-in float switch ensures that the pump activates only when needed, conserving battery power and extending the lifespan of the pump.

On the other hand, the 8M0044688 is an advanced livewell aerator pump. This model promotes optimal aeration in livewells, helping to maintain a healthy environment for live bait. With a compact design, it fits seamlessly within various boat designs without compromising space. The aerator features a unique dual-chamber technology that maximizes water flow and oxygenation, crucial for keeping bait lively and active while you fish. This model is engineered for quiet operation, minimizing disturbances to the aquatic environment while ensuring the bait is well taken care of.

Lastly, the 8M0044687 model is celebrated for its superior fuel system components, ensuring efficiency in fuel delivery for outboard engines. It utilizes advanced materials and precision engineering to prevent fuel leaks and ensure reliable performance. This model is designed with versatility in mind, making it suitable for a variety of boat types and marine engines. Enhanced filteration systems within the fuel system help to keep the engine clean and running smoothly, which is vital for optimizing performance and extending the engine's life.

In summary, the Attwood 8M004689, 8M0044688, and 8M0044687 products each offer unique features tailored to enhance the boating experience. From efficient bilge pumping to aeration for live bait and superior fuel systems, these models embody durability, performance, and cutting-edge technology necessary for today's boating enthusiasts.