Attwood 9300FDV7 In-Line Fuel Demand Valve, Fits 3/8 and 5/16 Inch Marine Fuel Hose

The Attwood 9300FDV7 In-Line Fuel Demand Valve is an EPA certified portable fuel component that installs between the fuel tank and the primer bulb on portable and permanently mounted marine fuel systems. It is built from high-strength composite material designed to hold up in harsh marine environments, and it is compatible with ethanol blended fuels as well as fuel hoses from all original equipment manufacturer brands.

The valve's job is to control fuel flow so the engine only draws the amount of fuel it actually needs. It maintains low vacuum restriction for proper engine starting and running performance, and it prevents a pressurized slug of fuel from surging into the engine when the primer bulb is squeezed. This protects against engine flooding and fuel spillage caused by over-pressurized fuel delivery. The valve has a maximum nominal input pressure rating of 20 psi and is protected against pressure spikes up to 40 psi.

The 9300FDV7 has two ports and is compatible with both 3/8 inch and 5/16 inch fuel hose, making it a versatile fit across common outboard and I/O portable fuel line setups. It carries a painted composite exterior finish and measures 4.87 x 8.5 x 4.75 inches.

Specifications

• Brand: Attwood
• Manufacturer Part Number: 9300FDV7
• Product Type: In-Line Fuel Demand Valve
• Material: Composite
• Exterior Finish: Painted
• Item Dimensions: 4.87 x 8.5 x 4.75 inches
• Weight: 0.1833 pounds
• Hose Compatibility: 3/8 inch and 5/16 inch fuel hose
• Number of Ports: 2
• Maximum Operating Pressure: 20 psi nominal input, protected for 40 psi pressure spike
• Certification: EPA Certified Portable Fuel Component
• Specification Met: CSA
• UPC: 022697930071
• Manufacturer Warranty: 90 days

Fitment

This is a universal in-line fuel demand valve compatible with 3/8 inch and 5/16 inch marine fuel hose and all original equipment manufacturer fuel system brands; no specific engine or boat model fitment is specified.

Frequently Asked Questions

What does the Attwood 9300FDV7 fuel demand valve do? It regulates fuel flow between the fuel tank and the primer bulb, allowing only the amount of fuel the engine requests and preventing a pressurized slug of fuel from reaching the engine, which helps prevent flooding and fuel spillage.

What size fuel hose does the 9300FDV7 work with? The 9300FDV7 is compatible with both 3/8 inch and 5/16 inch marine fuel hose, so it fits either common hose size on a portable fuel line setup.

Is this valve compatible with ethanol blended fuels? Yes, the Attwood 9300FDV7 is rated for use with ethanol blended fuels in addition to standard marine gasoline.

Where does the fuel demand valve get installed? The 9300FDV7 installs in-line between the fuel tank and the primer bulb on a portable marine fuel system.

What is the maximum pressure rating of the 9300FDV7? It has a 20 psi maximum nominal input pressure rating and is protected against pressure spikes up to 40 psi.

What material is the Attwood 9300FDV7 made from? The valve body is made from high-strength composite material with a painted exterior finish, engineered to hold up in marine environments.

Does the 9300FDV7 work with other brands of fuel system components? Yes, the Attwood 9300FDV7 fuel demand valve is compatible with fuel hoses and fittings from all original equipment manufacturer brands, not just Attwood.

How many ports does the fuel demand valve have? The 9300FDV7 has two ports, an inlet and an outlet, for connecting the fuel tank side and the primer bulb side of the line.

What are the dimensions of the 9300FDV7? The Attwood 9300FDV7 measures 4.87 x 8.5 x 4.75 inches.

How much does the 9300FDV7 weigh? The Attwood 9300FDV7 fuel demand valve weighs 0.1833 pounds.

What warranty comes with the Attwood 9300FDV7? The 9300FDV7 is backed by a 90 day manufacturer warranty.

Does the 9300FDV7 fit a specific boat make or model? No, the 9300FDV7 is a universal in-line fuel demand valve sized for 3/8 inch and 5/16 inch fuel hose rather than a make- or model-specific part.