Optional design procedures of API standard 650 liquid storage tanks

API 650 petroleum storage tank has the advantages of high safety: the API standard 650 liquid storage tanksinner floating plate floats on the liquid surface, so that the liquid phase has no evaporation space, which can reduce the evaporation loss by 85% to 90%. At the same time, the API 650 petroleum storage tank blocks the air and liquid storage through the floating disk, which reduces air pollution and reduces the degree of fire risk.

Welding inspection of bottom plate of API standard 650 liquid storage tanks, vertical oil tank: During the fabrication and installation of API standard 650 liquid storage tanks, the bottom edge plate is welded first. According to the requirements of the technical standard, penetrant inspection is required for the weld of edge plate at the bottom of API standard 650 liquid storage tanks, that is, penetrant testing is required for each weld bead priming, filling and capping. In the process of testing, if any defect is found, it shall be repaired immediately. After the repair, the surface coloring penetrant test shall be conducted again until the test result is qualified.

API 620 storage tanks relative standard for referenceASTM A106 Seamless Carbon Steel Pipe for High-Temperature ServiceASTM A131 Shipbuilding Structural Steel for API standard 650 liquid storage tanksASTM A134 Welded Steel PipeASTM A182 Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature ServiceASTM A193 Alloy-Steel and Stainless Bolting MaterialsASTM A194 Carbon and Alloy Steel Nuts for Bolts for High-Pressure and High-Temperature ServiceASTM A213 Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat Exchanger TubesASTM A240 Stainless Steel Plate, Sheet, and Strip for Pressure VesselsASTM A283 Low and Intermediate Tensile Strength Carbon Steel Plates

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