A573 grade 58 plates API Std 650 special tank

When the day light gradually decreases, the temperature of oil in the API Std 650 special tank will also decrease, the evaporation speed will gradually slow down, and the pressure in the API Std 650 special tank will also decrease. When the pressure in the API Std 650 special tank is lower than the negative pressure rating of the breathing valve, the outside air is sucked into the API Std 650 special tank through the open vacuum valve, which is the "suction" process of the oil tank.

Above the water level, all API Std 650 special tank welded joints, all welds around openings, and all piping joints against which the pneumatic pressure is acting shall be checked with a solution film. A visual inspection may be substituted for the solution-film inspection if the welded joint has previously been checked with a vacuum box. The solution-film inspection shall still be made, above the water level, on all welds around openings, all piping joints, and the compression ring welds, including the attachment to the roof and shell.

The working pressure of the low-pressure storage tank is greater than that of the atmospheric storage tank, but its pressure is less than 0.1MPa. API 650 petroleum storage tanks are classified according to their environment: Above-ground storage tank: refers to the bottom of the storage tank at the design elevation of API Std 650 special tank and above; the bottom of the tank is below the design elevation of +0.00 but not exceeding.

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Welcome customers to visit our company, we specialize in steel products, adhere to the API Std 650 special tank quality first standard, and do not forget to provide customers with the best quality products and services. Our product quality office is the best, and our API Std 650 special tank price is also very advantageous. Welcome to purchase steel products from our company.