The bottom of API standard 650 unanchored liquid-storage tanks

API 650 petroleum storage tank has the advantage of long economic life: because there is no gas space on the liquid surface in the internal floating roof API standard 650 unanchored liquid-storage tanks storage tank, the vibration generated during the transportation of liquid inside and outside the tank is reduced.

Design of Compression-ring Regions
In this project, a cylindrical tank 30 ft in diameter is designed for an internal pressure of 5 lbf/in.2 gauge in the vapor space. The plate material is ASTM A131 Grade A steel for thicknesses of 1/2 in. and less. The top course of the butt- welded cylindrical sidewall is 1/4 in. thick, including a 1/16 in. corrosion allowance. The tank API standard 650 unanchored liquid-storage tanks roof is a butt-welded spherical dome with an internal radius of 30 ft and a thickness of 1/4 in., including a 1/16 in. corrosion allowance. The maximum design liquid level is 6 in. below the plane of the juncture of the roof and sidewall.

Welding inspection of bottom plate of API standard 650 unanchored liquid-storage tanks, vertical oil tank: During the fabrication and installation of API standard 650 unanchored 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 unanchored 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.

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Provide special product requirements to meet the personalized needs of customers. The API standard 650 unanchored liquid-storage tanks company arranges production and shipment strictly according to the contract, and guarantees to supply goods according to the time agreed in the contract. Provide professional consultation: we guarantee to answer any professional and API standard 650 unanchored liquid-storage tanks technical questions raised by users within 1 hour; provide detailed information.