API 650 liquid storage tanks open-ended pipes

Usually, the wind load in the API 650 liquid storage tanks construction area should be considered before the tank design and construction. The wind load in the API 650 liquid storage tanks construction area has an impact on the stability and economy of the API 650 liquid storage tanks. In the area with large wind load, it is safe to design the tank as "squat". When calculating the wind force, the influence of the thickness of the insulation layer of the API 650 liquid storage tanks, the shape of the ladder, the platform, the pipeline and the top cover must be considered.

Above the water level, all API 650 liquid storage tanks 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.

API 650 storage tank stipulates that if the thickness of the lower wall panel obtained by calculating the anti-overturning moment is greater than the thickness of the API 650 liquid storage tanks hydrostatic pressure test (both do not include the corrosion allowance).