-10 ORB Discriminator Valve - Harmon Racing

A Discriminator Valve differs from a conventional vent/ check valve in that it allows airflow in and out of a tank but prevents fuel from exiting past the valve. The Primary function is to prevent fuel from traveling out the tank, through the vent line, and out the vehicle. All discriminator valves should be used in conjunction with a conventional vent / check valve located in the tank to prevent fuel from exiting the tank in the event the vent line breaks between the tank and discriminator valve during a crash.

NOTE: Because it is located outside the tank it does not replace the need of a traditional check valve.

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