API Std 650 partially anchored liquid-storage tanks earth foundations without a ringwall

Cylindrical Oil storage tanks Discharge Pipes
When a discharge pipe is used on the outlet side of such relieving devices, its area shall be not less than the area of the valve outlet, or if a single pipe provides for discharge from several relief devices, its area shall be not less than the aggregate area of the valve outlets. The API Std 650 partially anchored liquid-storage tanks discharge pipe shall be fitted with an open drain to prevent water or other liquids from lodging in the discharge side of the valves.
Discharge pipes shall be supported so that no undue stress is placed on the valve body. Open discharges shall be placed and oriented so that the outflow is directed away from the tank and will not create a hazard over walkways, stairways, or operating platforms.

This API 650 tank standard does not present orstablish a fixed series of allowable tank sizes: instead, it s intended to permit the purchaser to select whatever size API Std 650 partially anchored liquid-storage tanks tank may best meet his needs.

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

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