Corrosion-Resistant Pipe Float Ball Vent Valve for Gasoline Vapor Recovery Systems

Corrosion-Resistant Pipe Float Ball Vent Valve for Gasoline Vapor Recovery Systems

The HBFBV-A and HBFBV-T Series Pipe Float Ball Vent Valves are essential safety components for gas stations, specifically designed for single-tank gasoline vapor recovery systems. These valves are installed on underground storage tanks (USTs) or compatible above-ground tanks, ensuring that vapor is safely displaced into the delivery tank truck during fuel unloading. By working in conjunction with unloading pipes, vapor recovery pipes, and quick couplings, they create a fully sealed system between the tank truck and storage tank, significantly reducing the risk of fuel spillage and vapor emission.

The HBFBV-A Series features an aluminum pipe body with optional aluminum connectors, allowing direct threaded connection to vapor pipes without welding. The HBFBV-T Series uses a carbon steel pipe body with an electrophoretic coating, offering optional aluminum connectors or direct welding to steel vapor pipes. Both series utilize stainless steel ball floats and springs, ensuring excellent corrosion resistance, long service life, and compatibility with ethanol/gasoline blends (E85), biodiesel (B20), and other biofuels.

Available in multiple sizes—2 inch, 3 inch, and 4 inch diameters—these float ball vent valves can be customized according to client requirements, including pipe length and thread standards (NPT, BSPT, or other specifications). The valves automatically balance pressure during gravity-fed fuel unloading, preventing cross-flow between interconnected tanks and maintaining safe vapor recovery.

Globally, this type of valve is recognized under several names. In North America and Europe, it is often referred to as a “Float Vent Valve”, “Ball Check Vent”, or “Gravity Drop Float Vent”. In Asia and the Middle East, it may be called a “Fuel Tank Ball Vent Valve” or “Pipe Float Ball Vent”. Despite differences in terminology, all these variants share the same core function: controlling vapor displacement, preventing overfill, and maintaining pressure balance in fuel storage systems.

Key Features:
Ball floats and springs made from stainless steel, resistant to corrosion and compatible with biofuel blends.
Pipe body made from aluminum (HBFBV-A) or carbon steel (HBFBV-T), with optional threaded or welding connections.
Fully compatible with gasoline vapor recovery system components, including unloading elbows, riser pipes, and quick couplings.
Available in customizable diameters (2”, 3”, 4”) and pipe lengths per client requirements.
Suitable for gravity-drop systems only; not for suction pump unloading or coaxial Stage I vapor recovery tubes.

By choosing the HBFBV-A and HBFBV-T Series Pipe Float Ball Vent Valves, operators ensure safe, reliable, and environmentally friendly fuel handling. They prevent vapor emissions, reduce risk of spills, and provide compliance with international safety standards for gasoline vapor recovery systems.