Fuel Safe DV100 Discriminator Valve 3/4in -12AN Machined Aluminum

The Fuel Safe DV100 is a precision-machined aluminum discriminator valve designed for high-performance racing fuel systems. This external-mount valve installs in the vent line of fuel cells to prevent fuel from traveling up the vent line during refueling or when the tank is full, eliminating the need for a catch can to trap overflow.

Key Features:

• Machined aluminum construction with black anodized finish for durability and corrosion resistance
• -12AN male inlet and outlet fittings for secure, high-flow connections
• Dual-ball design: float ball closes when fuel enters the chamber, gravity ball provides rollover protection
• Required by BITD and SCORE sanctioned off-road racing organizations
• Ideal for dry break and pressurized fill systems with fast fueling applications
• Compact external mount design with 6.25-inch height
• 2.5-inch main body diameter, 2.75-inch upper cap diameter

Discriminator valves work by discriminating between vapor and liquid fuel, automatically closing to prevent gasoline spillage in the pits and on the race track. The float mechanism shuts off airflow when fuel enters the chamber, while the gravity-operated ball provides additional protection in rollover situations. This valve pairs perfectly with Fuel Safe's -12AN high-flow vent check valves for complete fuel system safety and performance.