API 650 self anchored flatbottom tanks thickness

Anti corrosion of API 650 self anchored flatbottom tanks:
After using for a certain period of time, it is necessary to check the corrosion protection of the API 650 self anchored flatbottom tanks. If necessary, the outer wall of the metal oil tank should be painted with new anti-corrosion paint to ensure that the outer wall of the API 650 self anchored flatbottom tanks does not fall off and has good waterproof and rust resistance.
API 650 self anchored flatbottom tanks cleaning:
The long-term use of API 650 self anchored flatbottom tanks will produce impurities on the tank wall and deposit on the tank bottom, resulting in tank corrosion to leakage. According to the safety standard of oil tank, the API 650 self anchored flatbottom tanks shall be cleaned and derusted regularly to ensure the quality of oil stored and the safety of oil tank equipment.

The API 650 self anchored flatbottom tanks outer tank, which is not in contact with the vaporized liquefied gas, may be of single-welded lap or single-welded butt construction when the thickness does not exceed 3/8 in.; at any thickness, the API 620 oil tank outer tank may be of double- welded butt construction without necessarily having full fusion and penetration. Single-welded joints shall be welded from the outside to prevent corrosion and the entrance of moisture.

Under the action of the earthquake, API 650 storage tank is mainly damaged by the phenomenon of the lower part of the API 650 self anchored flatbottom tanks tank wall. Therefore, the key point of seismic calculation is to prevent the tank wall from buckling under axial pressure.