API standard 650 horizontal tank dead load

Atmospheric API standard 650 horizontal tank refer to storage tanks whose gas or vapor pressure is greater than -0.02MPa but less than 0.1MPa. Metal atmospheric storage tanks made of steel welded on the ground are often used to store petroleum, chemical and other similar liquids. Atmospheric API standard 650 horizontal tank usually have a connecting pipe directly connected to the atmosphere, so that the operating pressure in the storage tank does not exceed the design pressure at all times.

API 620 Crude Oil Tank Pneumatic Pressure
An air pressure equal to 1.25 times the pressure for which the vapor space is designed shall be applied to the enclosed space above the water level. In the case of a double-wall tank with an open-top inner tank, where the air pressure acts against the outer tank and the inner tank is thus not stressed by the air pressure, the inner API standard 650 horizontal tank may be emptied of water before the pneumatic pressure test begins. The test pressure shall be held for 1 hour.

API 650 storage tank, double-layer oil tank environmental protection advantages: ordinary single-layer steel API standard 650 horizontal tank oil tank is corroded by underground water and gas and electrolytic corrosion because it is buried underground all year round. The API 650 tank has a double-layer structure with a gap of 0.1 mm. The API standard 650 horizontal tank outer layer of FRP ensures that the leakage will not directly leak into the soil and water source.

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