API standard 650 aluminum tanks anchored with mechanical devices
Standard Hydrostatic and Pneumatic TestsAfter erection is completed and stress relieving, radiographic examinations, or other similar operations, as may be required, are performed, each tank shall satisfactorily pass a series of hydrostatic and pneumatic tests as prescribed in 7.18.2 through 7.18.6. Whenever a solution film is specified in this section to be applied to welding, linseed oil or another equivalent material for disclosing air leakage may be substituted. In freezing weather, linseed oil or a similarly suitable material shall be used.The attachment welding around all openings and their reinforcements in the walls of the API 620 tank shall be examined by the magnetic-particle method both inside and outside the tank API standard 650 aluminum tanks. When the underside of a tank bottom rests directly on the tank grade (and is not accessible after erection), such examination of welding on the underside of the bottom and subsequent air testing may be omitted.
This specification, in conjunction with API 650 Standard, prescribes minimum standards for the API standard 650 aluminum tanks design, supply fabrication, erection, and testing of field erected welded steel storage tanks complete with accessories as specified herein and as shown on attached datasheets and/or drawings.
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}Usually, the wind load in the API standard 650 aluminum tanks construction area should be considered before the tank design and construction. The wind load in the API standard 650 aluminum tanks construction area has an impact on the stability and economy of the API standard 650 aluminum 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 standard 650 aluminum tanks, the shape of the ladder, the platform, the pipeline and the top cover must be considered.
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