The design and construction for API 650 mechanically-anchored tanks

Oil tank is often used to store crude oil, diesel oil, gasoline and other oil. The main structure of API 650 mechanically-anchored tanks is composed of tank top, tank wall, tank bottom and accessories. The API 650 mechanically-anchored tanks should be inspected after the completion of construction, and the detection methods of different structure positions are different. Tank wall inspection: for the newly built oil tank, water filling test shall be conducted to check whether the tank wall is tight, and the appearance inspection shall be conducted for the tank wall plate and weld. Tank wall thickness detection: the oil tank wall thickness is mainly detected by ultrasonic wave, with high efficiency.

Aftershock Level Earthquake (ALE)
This design case shall be applicable only when regulations or project documents specifically require the tank system to be designed or evaluated for aftershocks.
If the outer tank is not designed as a secondary containment (i.e. it serves as vapor barrier and pressure boundary only and is not constructed of API 620 material suitable for the inner tank API 650 mechanically-anchored tanks), then no design or evaluation for ALE is required by these provisions for the inner or outer tank.

The welded steel API 650 storage tank API 650 mechanically-anchored tanks is designed, manufactured and installed on the surface according to the API standard system classification. API 650, API620 and API 12D belong to the API standards for professional construction.

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