Reliable Stainless Steel Vent and Vacuum Relief Valves for Tank Truck Safety

Reliable Stainless Steel Vent and Vacuum Relief Valves for Tank Truck Safety

Maintaining proper internal pressure in tank trucks is essential for safe fuel transport, environmental protection, and operational efficiency. The HBTQF-60 and HBHT-V series are high-quality external vent valves and vacuum relief valves made from premium 304 stainless steel, offering superior corrosion resistance, high-temperature tolerance, and long-lasting durability.

These valves are known worldwide under different names: “tank breather valve” in the US, “oil truck venting valve” in the UK, “stainless steel tank pressure valve” in Australia, and “external vacuum relief valve for fuel tankers” in India. Despite the naming differences, the main function remains the same: maintaining safe internal tank pressure, minimizing fuel vapor emissions, and preventing tank deformation during filling, discharge, or transport.

The HBTQF-60 External Vent Valve is designed with a 2-inch BSPP or NPT female threaded connection. It operates with a positive opening pressure of 6–8 kPa and a negative opening pressure of -2 to -3 kPa, capable of withstanding temperatures from -20°C to +120°C. Its nominal diameter is 50 mm, making it suitable for various oil tanks and tank trucks.

The HBHT-V Vacuum Relief Valve prevents vacuum-induced tank deformation. Its construction includes a valve body, disc, spring, cover, filter mesh, and gasket. Utilizing the pressure differential between the tank interior and exterior, it allows air to enter during vacuum conditions, balancing pressure safely. The valve supports threaded connections with a nominal diameter of DN50, nominal pressure of 0.6 MPa, and a temperature range of -20°C to +150°C. Seals are made from durable fluororubber/Viton for reliable long-term performance.

Constructed entirely from 304 stainless steel, both valves provide exceptional resistance to corrosion, making them ideal for harsh environments and extended use. Regular inspection and maintenance ensure consistent performance and prevent debris from compromising functionality.

These valves are perfect for fuel trucks, oil tankers, and industrial oil transport applications, offering reliable pressure control, protecting fuel quality, and enhancing operational safety. Choosing the HBTQF-60 and HBHT-V series means investing in a globally recognized, durable solution for external tank venting and vacuum relief.

Key Features:
304 Stainless Steel Body: corrosion-resistant, high durability, high-temperature tolerance
Pressure Regulation: prevents overpressure and vacuum deformation
Wide Temperature Range: HBTQF-60 (-20°C to +120°C), HBHT-V (-20°C to +150°C)
Threaded Connection: BSPP or NPT, DN50/2-inch compatibility
Reliable Sealing: fluororubber/Viton ensures leak-free long-term operation
Global Applications: suitable for fuel trucks, oil tankers, and industrial storage tanks