API standard 650 aluminum storage tanks seismic base shear

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 aluminum 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.

For floating roof API 650 tanks, the net working capacity is the liquid volume contained between the API standard 650 aluminum storage tanks maximum operating level (300 mm below rim for metallic type seals and 600 mm below rim for fabric type seals) and the minimum operating level (API 650 tanks roof supports clearing the tank bottom by 25 mm while set at the operating position).

Strictly control the welding groove forming of API standard 650 aluminum 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 aluminum storage tanks weld assembly: measures must be taken to strictly control the assembly size of metal vertical tank bottom plate during assembly.