Compact Manual Bottom Valve for Tank Trucks – HB804CS-80 Series

Compact Manual Bottom Valve for Tank Trucks – HB804CS-80 Series

The HB804CS-80 series is a precision-engineered manual bottom valve designed for fuel tank trucks and light liquid transporters. Positioned at the lowest point of the tank, the valve disc is fully enclosed within the tank body, while the outer valve casing incorporates a safety cutting groove. In the event of an unexpected collision or severe impact, the outer segment of the valve body will fracture along the groove, protecting the tank's integrity and preventing accidental fuel spillage.

This compact 3-inch manual valve features mechanical operation, offering precise control for fuel transfer operations. Its internal configuration is optimized to maintain smooth fluid flow and minimize leakage during loading and unloading. Constructed from surface-treated aluminum, the valve body combines corrosion resistance with lightweight durability. Optional sealing gaskets in VITON or Buna-N provide chemical resistance and extended service life.

Across the world, these valves are referred to by different names: “3-inch Manual Emergency Shut-off Valve” in North America, “Manual Tank Bottom Valve” in Europe, “罐底手动阀” in parts of Asia, and “Válvula manual de fondo 3 pulgadas” in Latin America. Despite the varied terminology, the function remains consistent: offering a secure, reliable bottom valve solution for smaller tank configurations.

Key Features:
Compact 3-inch design for smaller tanks or specialized applications
Mechanical control ensures reliable operation without pneumatic support
Fully compliant with EN 13308 standards for tank service equipment
Optimized internal flow path reduces pressure drop and leakage
Durable anodized aluminum body resists corrosion and extends longevity
Optional VITON or Buna-N gaskets enhance chemical compatibility
Round flange on tank side and square flange on pipe side for versatile installation

Technical Specifications:
Nominal size: 3 inches
Working pressure: 0.6 MPa
Maximum flow rate: 750 L/min
Temperature range: -20°C to +70°C
Opening mode: Manual
Flange: Round on tank side, square on pipe side
Medium: Gasoline, diesel, or other light fuels

Recommended Accessories:
Tank side flat flange (HBBVTSFL-80R)
Tank side welding sump with male bolts (HBBVTSFL-80B) or female nuts (HBBVTSFL-80RA)
Pipe side square flange (HBBVPSFL-80F)

Round or square gaskets in Buna-N or VITON for tank and pipe side
This 3-inch HB804CS-80 manual bottom valve is ideal for compact fuel tank trucks, chemical transport trailers, and small-scale liquid transportation units, providing a reliable, safe, and leak-proof solution. Custom configurations and materials are available to meet regional standards or project-specific requirements.