High-Flow Pneumatic Bottom Valve with Dual Round Flanges for Fuel Tank Trucks

The HBFV-B-4 is a pneumatic bottom valve developed for fuel tank trucks, providing a safe and reliable solution for fuel loading and unloading operations. If the truck takes a hard hit from the side, the outer valve housing breaks away cleanly at that exact point—sacrificing the piping but keeping the internal poppet sealed tight inside the tank so you don't end up with fuel spilling all over the highway.

We use high-strength die-cast aluminum for the main body because no one wants extra weight on their rigs, and it honestly makes installation and swapping parts out a whole lot easier during routine maintenance. Performance-wise, it features a high-lift poppet design that opens up wide for faster fuel transfer and less downtime at the rack. The internal moving parts are all stainless steel so they won't corrode, and we spec it with Viton seals to handle different fuel types, additives, and harsh weathering without degrading. Plus, the self-centering plunger and heavy-duty spring system ensure a positive, leak-free closure every single time you drop the air pressure.

The HBFV-B-4 series is a solid choice for petroleum tank trucks, chemical trailers, or pretty much any liquid transport fleet out there. It bridges the gap between your tank sump and your discharge lines beautifully, and we can configure it in various sizes and flange patterns to line up with whatever regional standards or piping layouts your shop is running.