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Fuel Primer

Product catalog summary

Overview: The FP-321 Series Fuel Primer by Reverso Pumps, Inc. is designed to facilitate the priming of diesel engine fuel systems, making the process easier, faster, and safer compared to manual priming during routine filter changes. It effectively pumps fuel to purge trapped air in the main feed line, primary and secondary filters, and the engine.

Basic Features:

Available in 12V and 24V versions.
Pressure relief options of 15 psi (special order) and 22 psi.
Flow direction options: left-to-right or right-to-left.
Includes a momentary button with an LED power indicator.
Available in marine or industrial versions.

Technical Specifications:

Flow Rate: 4 GPM / 15 LPM.
Inlet/Outlet: 1-1/6” x 12 UNF (straight o-ring boss).
Self-priming capability up to 5 ft / 1.5m (wet gears).
Fuse (installer supplied): 15A.
Maximum Amperage Draw: 8A at 12V, 4A at 24V.
Preset Pressure: 22 psi / 1.5 bar.
Operating Temperature: 14°F to 104°F (-10°C to 40°C).
Seal Material: Viton; Gears: PTFE; Shaft: Stainless Steel; Body: Nickel-plated brass.
Rated IP67 for protection against dust and water.
Dimensions: A - 6.5” / 165 mm, B - 11.5” / 292 mm, C - 6.74” / 171 mm; Weight: 11 lbs / 4.99 kg.

Installation Recommendations: It is advised to install the fuel primer after the primary filter, although it can be placed anywhere in the fuel system. The valve handle should align with the direction of flow.

Priming Procedure:

Rotate the valve handle to the priming position.
Hold down the button to run the pump until fuel appears at the filter, indicating the lines are primed.
Release the button and return the valve handle to the run position before restarting the engine.

Product Variants: The FP-321 series is available in various configurations based on flow direction, pressure settings, and voltage requirements, suitable for both marine and industrial applications.

Catalog excerpts

Data Sheet FP-321 Series Fuel Primer Version 2.1 The FP-321 Series makes priming the fuel system of a diesel engine easier, faster, and safer than manually priming during routine filter changes. It pumps fuel into the lines to purge trapped air in the main feed line, primary filters, secondary filters, and engine. The bypass protects the system from pressurizing beyond the preset. Basic Features • 22 psi pressure relief • Left-to-right flow or right-to-left flow • 24V • Momentary button with LED power indicator • Marine or industrial version Marine Version with white base and cover Optional Features • 12V special order • 15 psi pressure relief special order Technical Specifications Flow Rate Reverso Pumps, Inc. www.reversopumps.com | [email protected] | Ph: (954) 522-0882

Open the catalog to page 1

It is recommended to install the fuel primer after the primary filter, but it can be located anywhere in the fuel system. The valve handle points with the direction of flow. Rotate valve handle to priming position. 3 Hold down button to run the pump. Once fuel appears at the filter, the lines are primed. [A Release button and return valve handle to run position before restarting engine. Right-to-Left Version Version: 4/17/19 Reverso Pumps, Inc. www.reversopumps.com | [email protected] | Ph: (954) 522-0882

Open the catalog to page 2

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