The Original Fuel Air Separation System

The AirDog® Fuel Preporator®, with the capability to provide fuel at flows and pressures beyond the maximum requirements of the engine, receives fuel under vacuum from the fuel tank containing entrained air/vapor, particulate contaminates, and unknown quantities of moisture. The fuel passes through the water separator which removes water and large particulate contaminates that could damage or jam the gerotor fuel pump. The fuel, with only entrained air/vapor and tiny particulate contaminates remaining, enters the fuel pump.

The fuel, now under positive pressure flow, enters the filter. As the fuel passes through the filter media and the remaining particulate contaminates are caught and contained, the entrained air/vapor is also separated. Through the positive fuel air separation features of the patented Fuel Preporator® the separated air/vapor is discharged from the filter through the Primary Air/Vapor Discharge Port and into the return to tank passage after the regulator. The fuel passing through the filter media (free of contaminates & power robbing air/vapor and at pressures and flows to meet the needs of the engine exits the fuel filter through two passageways. The fuel for the engine, passes into the fuel pick-up tube and out to the engine).

The excess fuel not needed by the engine is released through the pressure regulator to combine with the air/vapor and foam as it returns to the fuel tank. The regulator controls the fuel pressure to the engine.

AirDog® Benefits

The AirDog® Fuel Preporator® removes various contaminates, including entrained air/vapor, particulates and moisture, and removes excess fuel not needed by engines, allowing the fuel to flow through the regulator and return to the fuel tank. The separated air/vapor enters the return port after the regulator, allowing pure fuel to flow to the engine at a regulated positive pressure. A gerotor pump offers quiet, long lasting performance. Some benefits include:

• Removes Air and Vapor from Diesel Fuel
• Pure Diesel Fuel Reaching the Engine
• High Flow Rates of Fuel to the Engine
• Longer Injector Life
• Increased Injection Pump Life
• Increased Fuel Economy
• Optimized Engine Performance
• Increased Torque Output
• Improves Throttle Response

AirDog® Features

• Small & Compact: Only 7"L X 10"T X 3.2"W
• Single Piece Pump Body: Replaces the old 3 piece pump design reducing the number of parts, unit size, and weight. This results in a sleek, low profile pump assembly and eliminates the need for leaky, messy gaskets!
• Mounts to frame: No Drilling required!

AirDog® Installation Kit

All-Inclusive Installation Kit includes:

• Relay Control Wiring Harness
• 1/2" Suction Tube (when required)
• All Fuel Fittings Required
• Mounting Hardware
• 1/2" Fuel Lines W/ OEM Style Quick Connect Fittings
• AirDog® Bracket & Spacer
• Plastic Ties
• Installation Manual