High-Precision Aluminum Measuring Hole with Built-in Ball Valve

High-Precision Aluminum Measuring Hole with Built-in Ball Valve – Tank Level Monitoring & Sampling Accessory

The HBMHBV series measuring holes are crafted from high-strength aluminum alloy, designed specifically for monitoring liquid levels and collecting samples from storage tanks. Typically mounted on the top of the tank near ladder platforms, these measuring holes provide accurate oil level readings, allow sample testing, and support laboratory or field analysis. Each unit comes with a lockable cover and secure bolts. To prevent sparks during closure when the cover contacts metal surfaces, the sealing groove is embedded with oil-resistant rubber or soft metals such as copper or aluminum, ensuring safety and reliability during operation.

A key feature of the HBMHBV series is its integrated ball valve. This innovative design prevents sudden ejection of tank vapors when the measuring hole cover is opened. By gradually rotating the ball valve handle, operators can release vapors in a controlled manner, achieving dual-seal protection and enhanced safety. This makes the system suitable for underground or above-ground storage tanks in gasoline stations, depots, and other fuel storage facilities.

The series is engineered to operate reliably in temperatures from -20°C to +50°C and withstand working pressures of 0.3 to 1.0 Mpa. The ball is available in stainless steel or standard steel, while sealing components are made from Teflon and Buna-N, providing long-term corrosion resistance and durability. Flange standards can be customized based on client requirements, supporting pipe diameters of DN80, DN100, and DN150 (approximately 3 to 6 inches) to meet diverse tank configurations.

Globally, this product is known by various names. In North America, it is often called a “Tank Top Ball Valve Measuring Port,” in Europe as “Aluminum Level Gauge with Built-in Ball Valve,” and in Asia or the Middle East as “Oil Tank Level Measuring Port” or “Sampling Port with Ball Valve,” making it easily identifiable for international users.

Ordering options include HBMHBV-80-160-B (80 mm flange, 160 mm bolt hole spacing, bolted cover), HBMHBV-100-180-B (100 mm flange, 180 mm bolt spacing), and HBMHBV-150-240-B (150 mm flange, 240 mm spacing), ensuring flexibility to fit different tank systems.

With its compact structure, corrosion resistance, safe operation, and ease of installation, the HBMHBV series measuring holes provide a reliable solution for tank level monitoring and sample collection, making them an essential component for modern fuel stations, depots, and transport storage systems.