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Enhance Tank Monitoring with HBMH-BO Measuring Holes

Enhance Tank Monitoring with HBMH-BO Measuring Holes

Accurate liquid level monitoring in storage tanks is essential for safety, efficiency, and operational control. The HBMH-BO Series Measuring Holes provide a practical and reliable solution by integrating seamlessly into manhole covers, allowing operators to install an oil dipstick or a liquid level meter with ease.

Known globally under various names—“tank manhole level gauge port” in the US, “fuel tank dipstick fitting” in the UK, “manhole cover measurement port” in Australia, and “tank liquid level access point” in India—the HBMH-BO series is widely recognized for its versatility and durability.

Crafted from high-quality cast aluminum alloy, these measuring holes are built to withstand working pressures up to 0.6 MPa and temperature ranges from -20℃ to +50℃, making them suitable for demanding industrial and petroleum applications. Their robust construction ensures long-lasting performance while maintaining a precise and secure mounting point for liquid level measurement devices.

Available in multiple models, including HBMH-BO-01 and HBMH-BO-02, these measuring holes can be customized to fit different manhole cover sizes and operational requirements. This flexibility allows operators worldwide to maintain accurate tank readings while optimizing maintenance efficiency and improving safety standards.

Whether you need a simple dipstick port or a full liquid level meter installation, the HBMH-BO Built-On Measuring Holes offer a dependable, global-standard solution for tank monitoring. By choosing HBMH-BO, you invest in a component designed to enhance accuracy, safety, and operational control across diverse industries.

Key Features:
Premium Material: cast aluminum alloy ensures durability and corrosion resistance
Pressure Resistant: up to 0.6 MPa for reliable operation
Wide Temperature Range: -20℃ to +50℃ for global use
Versatile Compatibility: supports oil dipsticks or liquid level meters
Customizable Models: HBMH-BO-01 and HBMH-BO-02 fit different manhole cover sizes

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HBMH-BO Series of Built-On Measuring Holes are installed at the preparatory hole on the manhole cover, and can be equipped with an oil dipstick or a liquid level meter.(Optional Accessories)



HBMH-BO-01


HBMH-BO-02


Technique Specification:
Body Material: Cast Aluminum Alloy
Working Pressure:0.6 Mpa
Temperature Range: -20~+50℃

About Haibo
Zhejiang Haibo Petroleum Equipment Co., Ltd.

Zhejiang Haibo Petroleum Equipment Co., Ltd., established in 2017, is a certified enterprise located in Yongjia County, Wenzhou City, Zhejiang Province—recognized globally as the world’s largest manufacturing base for petroleum equipment and the well-known hometown of pumps and valves in China.
Our products are widely used in Fluid Control Systems, Energy Systems, Measurement Systems, Piping Systems, and Hydraulic Systems, serving petroleum companies, military units, oil depots, tank truck manufacturers, and petrol stations worldwide. Province—recognized globally as the world’s largest manufacturing base for petroleum equipment and the well-known hometown of pumps and valves in China.
At Haibo, we are backed by a team of senior industry experts with more than 20 years of professional experience in the petroleum equipment and fluid control sectors. Their deep technical knowledge and industry insight ensure that every product and solution we deliver meets the highest standards of quality, reliability, and performance.

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