Check Valve Fuel Filter Conversion Kit
This kit permits the outlet of a standard Radium Engineering fuel filter (green outlet) to be converted to a check valve outlet.
This filter was flow tested to have a 1psi drop at 300LPH and 2.5psi drop at 700LPH.
Depending on the application, the check valve fuel filter can be used to prevent pressure at the fuel rail from dropping when the engine or fuel pump is turned off. As an example, some fuel pumps do not include a back-flow check valve on the outlet. Another example is some venturi jet pumps operate on the high pressure side rather then on the return side of the fuel system. These examples would result in loss of line pressure when the pump is turned off and could therefor benefit from a check valve fuel filter. Keeping pressure in the fuel rail helps speed the restart cycle of the engine.
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