A573 grade 58 plates API 650 storage tanks
Before pressure testing, thoroughly flush the API 650 tank floating roof primary drain hose system. Supply API 650 storage tanks blind flanges, gaskets, and bolting (for other types of blanking covers as may be required) necessary for testing.
The {keyword shell that contains the liquid shall have butt-welded annular bottom plates with a radial width that provides at least 24 in. between the inside of the shell and any lap-welded joint in the remainder of the bottom and at least a 2-in. projection outside the shell. The stated values apply to full-sized specimens. For sub-size specimen acceptance criteria, see ASTM A20. An impact test temperature lower than the design metal temperature may be used by the API 620 large welded, low pressure storage tanks Manufacturer.
The API 650 storage tanks must go through strict inspection before putting into use. Inspection of plate groove of API 650 storage tanks, vertical oil tank: After finishing the groove processing of oil tank plate, it is necessary to conduct dye penetrant inspection on the groove. This process is mainly aimed at the hard damage of groove in the machining process and the defects of the plate itself. If any defect is found, it shall be processed again until the defect disappears.
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