A573 Gr 450 plates API 650 uplifting tanks

The cleanliness of the API 650 uplifting tanks has a great influence on the safety of the tank and the quality of the oil stored. Keeping the API 650 uplifting tanks clean can slow down the corrosion of the tank wall and reduce the pollution to the oil. If the inside of the API 650 uplifting tanks is not cleaned all the year round, a lot of rust and metal impurities will be produced in the tank. These impurities will cause the oil to slowly oxidize and deteriorate. The impurities mixed into the oil will also block the filter and oil circuit, causing oil supply failure.

Low-pressure storage tanks for Liquefied Hydrocarbon Gases
API 650 uplifting tanks Primary Components: In general, primary components include those components that may be stressed to a significant level, those whose failure would permit leakage of the liquid being stored, those exposed to a refrigerated temperature between –60°F and –270°F, and those that are subject to thermal shock. The primary components shall include, but will not be limited to, the following parts of a single-wall tank or of the inner tank in a double-wall tank: shell plates; bottom plates; roof plates; knuckle plates; compression rings; shell stiffeners; and manways and nozzles including reinforcement, shell anchors, pipe, tubing, forgings, and bolting.

The inner layer of API 650 tank is the same as that of single layer tank. It is made of high-quality steel plate in strict accordance with the standard of "steel welded atmospheric pressure vessel". The thickness of API 650 uplifting tanks steel plate reaches the standard and the service life is longer.