API standard 650 closed top welded storage tanks roundness

API 650 storage tank, double-layer oil tank environmental protection advantages: ordinary single-layer steel API standard 650 closed top welded storage tanks oil tank is corroded by underground water and gas and electrolytic corrosion because it is buried underground all year round. The API 650 tank has a double-layer structure with a gap of 0.1 mm. The API standard 650 closed top welded storage tanks outer layer of FRP ensures that the leakage will not directly leak into the soil and water source.

Strictly control the welding groove forming of API standard 650 closed top welded storage tanks: in order to ensure the geometric dimension of assembly and good welding of welding seam, before hoisting and laying, the edge of all metal vertical storage tank plate shall be polished by grinder, and the flatness of plate shall be ensured according to the design requirements. Strictly control the size of API standard 650 closed top welded storage tanks weld assembly: measures must be taken to strictly control the assembly size of metal vertical tank bottom plate during assembly.

The refrigerated tank primary components shall include, but will not be limited to, the following parts of a single-wall tank or of the inner tank API standard 650 closed top welded storage tanks in a double-wall tank: shell plates; bottom plates; knuckle plates; compression rings; and shell manways and nozzles including reinforcement, shell anchors, piping, tubing, forgings, and bolting. Roof nozzles in contact with the refrigerated liquid shall be considered primary components.

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