42m diameter API standard 650 ground-supported liquid storage tanks
Welding certification is regulated by Section 10 of the American Society of Mechanical Engineers (ASME). For both API standard 650 ground-supported liquid storage tanks storage tank API 650, non-destructive inspection is required, but third-party inspection is not required.
The API 650 oil tank stiffener ring and backing strip, if used, are primary components, and they shall comply with the requirements of R.2.1. The API standard 650 ground-supported liquid storage tanks stiffener ring may be fabricated from plate using an intermittent weld on alternating sides between the web and the flange. One rat hole with a minimum radius of 3/4 in. shall be provided at each longitudinal shell joint and ring juncture weld.
Usually, the soil resistance of the foundation should be considered before the design and construction of API standard 650 ground-supported liquid storage tanks. The soil endurance in the API standard 650 ground-supported liquid storage tanks construction area plays a decisive role in the basic cost of the tank. In areas with high soil resistance, not only the cost of foundation treatment can be greatly reduced, but also the ratio of height to diameter of storage tank can be obtained. Therefore, the investment cost of the API standard 650 ground-supported liquid storage tanks can be greatly saved in the area with large soil resistance.
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