EN S275 plates API 650 vertical welded storage tanks

The water dissolved in the oil will be separated out from the oil stored in the API 650 vertical welded storage tanks for a long time, and the acidic water layer will appear at the bottom of the API 650 vertical welded storage tanks for a long time, which will accelerate the corrosion of the API 650 vertical welded storage tanks and cause the wall thinning and even leakage. With the increase of service life, the API 650 vertical welded storage tanks must be inspected and cleaned regularly to check the hidden danger.

The thickness of the API 650 vertical welded storage tanks annular bottom plates shall be in accordance with Table Q-4 (for steel or aluminum, as applicable). The thicknesses shown are minimums. The ring of annual plates shall have a circular outside circumference, but it may have a regular polygonal shape inside the tank shell with the number of sides equal to the number of annular plates. These pieces shall be butt-welded in accordance with Q.7.1.1, Item b. The plates of the first shell course shall be attached to the annular bottom plates by a weld as required by API 620 oil tank 5.9.5 except when a full-penetration weld is used or required (see Q.7.1.1). Butt-welds in annular plates shall be not closer than 12 in. from any vertical weld.

Supply covers for API 650 vertical welded storage tanks connections specified with the service covers remaining in place following tests. For API 650 tank connections not specified to be supplied with service covers, the test covers may be removed after testing.

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Our steel products are widely used in petroleum and natural gas, chemical industry, shipbuilding, automobile manufacturing, power generation, mining, and other industries. The products API 650 vertical welded storage tanks are sold in more than 20 provinces, cities and all over the world. The company has strong technical force, complete production equipment, advanced production technology, perfect testing methods, and high-quality products.