A841 grade A plates API 650 duplex stainless steel tanks

Anti corrosion of API 650 duplex stainless steel tanks:
After using for a certain period of time, it is necessary to check the corrosion protection of the API 650 duplex stainless steel 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 duplex stainless steel tanks does not fall off and has good waterproof and rust resistance.
API 650 duplex stainless steel tanks cleaning:
The long-term use of API 650 duplex stainless steel 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 duplex stainless steel tanks shall be cleaned and derusted regularly to ensure the quality of oil stored and the safety of oil tank equipment.

Foundations and subgrade shall safely carry the weight of the tank API 650 duplex stainless steel tanks and its contents when the tank is filled with water to the highest level required for a hydrostatic test or other water-loading operations, even though the tank itself may be designed for some lesser density of liquid. However, in cases where the character of the soil justifies it and a competent soil expert advises it, allowance may be made for the relatively short duration and intermittent nature of the water loadings if suitable account is taken of all such loadings that may be expected to occur during the life of the tank, including not only those loadings that are incidental to periodic repetitions of the hydrostatic test in accordance with 7.18 but also water-filling operations for gas-freeing purposes.

According to API standard 650, the stairs used for API 650 petroleum storage tanks or thermal insulation tanks should be double longitudinal beams supported by a minimum of ribs. If the gap between the API 650 duplex stainless steel tanks tank shell and the stringer of the API 650 petroleum storage tank exceeds 200mm, handrails should be provided on both sides of the stairs. Unless otherwise specified, according to API 650 duplex stainless steel tanks ASTM A123, the following accessories shall be hot-dip galvanized. The damaged zinc coating should be repaired with zinc alloy.

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