Fuel Tank Sump is a kind of protective container, which is installed at the mouth of buried oil storage tank, providing a clean space for equipment, valves and joints, ensuring its internal equipment is not corroded by groundwater, and ensuring the normal operation of the oil tank and its auxiliary equipment. At the same time, ensure the fuel will not leak into the soil during equipment failure and maintenance, and protect the soil of the oil station from pollution.

When the equipment, valves and joints in the tank mouth need to be inspected, repaired and maintained, the use space of Tank Sump allows maintenance personnel to enter its interior, and can scrub and ventilate the tank mouth. Regular inspection of liquid level meter, submersible pump, oil unloading overflow valve and leak detector on Pipework System, liquid level calibration at oil measuring hole, and maintenance of joints and valves of oil transportation, oil unloading, breathing pipelines and various oil vapor recovery pipelines can be easily completed in this space.