1060 aluminum plate API 650 aboveground petroleum storage tanks

This API 650 tank standard is designed to provide industry with tanks of adequate safety and reasonable economy for use in the API 650 aboveground petroleum storage tanks storage of petroleum, petroleum products. and other liquid products.

Welding inspection of bottom plate of API 650 aboveground petroleum storage tanks, vertical oil tank: During the fabrication and installation of API 650 aboveground petroleum 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 650 aboveground petroleum 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.

Hydrostatic Test
The API 650 aboveground petroleum storage tanks product shall be vented to the atmosphere when it is filled with or emptied of water. During water filling, the elevations of at least four equidistant points at the bottom of the tank shell and on top of the ringwall or slab shall be checked. Differential settlement, or uniform settlement of substantial magnitude, requires an immediate stop to water filling. Any further filling with water will depend on an evaluation of the measured settlement.

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