API standard 650 mechanically-anchored steel tanks convective water parameters
API 650 is an American standard for welding flat bottom vertical storage tanks. This API standard 650 mechanically-anchored steel tanks standard specifies requirements for the design, manufacturing, welding, inspection and installation of storage tanks. API 650 is widely used in storage tanks designed to withstand low internal pressures and used to store typical products such as API standard 650 mechanically-anchored steel tanks crude oil, gasoline, chemicals and water. BBN has extensive experience in API 650 tanks, from +/- 500 cubic meters of tanks produced in the factory to +/- 15000 cubic meters of tanks produced on site.
Usually, the wind load in the API standard 650 mechanically-anchored steel tanks construction area should be considered before the tank design and construction. The wind load in the API standard 650 mechanically-anchored steel tanks construction area has an impact on the stability and economy of the API standard 650 mechanically-anchored steel tanks. In the area with large wind load, it is safe to design the tank as "squat". When calculating the wind force, the influence of the thickness of the insulation layer of the API standard 650 mechanically-anchored steel tanks, the shape of the ladder, the platform, the pipeline and the top cover must be considered.
All welded seams in the API standard 650 mechanically-anchored steel tanks bottom, and complete penetration and complete fusion sidewall-to-bottom welds, shall be inspected by means of a vacuum box test as described in Q.8.2.1. Sidewall-to-bottom welds not having complete penetration and complete fusion shall be inspected by means of either a vacuum box test of the inside weld as described in API 620 specification Q.8.2.1, or where approved by the Purchaser, a direct pressure solution film test as described in Q.8.2.2.
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