API standard 650 unanchored liquid-storage tanks seismic design factors
Under the same sealing effect, the internal API standard 650 unanchored liquid-storage tanks floating roof API 650 tank can further reduce the evaporation loss compared with the external floating roof API 650 tank. This is due to the shielding of the fixed roof and the gas phase layer between the fixed roof and the inner floating plate, which has more significant heat insulation effect than the double disc floating roof of the API standard 650 unanchored liquid-storage tanks external floating roof tank.
The tank shall be filled with water to the design liquid level unless height is limited as noted in API 620 standard Q.8.1. After the tank is filled with water and before the pneumatic pressure is applied, anchorage, if provided, shall be tightened against the hold-down brackets. All welds in the API standard 650 unanchored liquid-storage tanks shell, including the corner weld between the shell and the bottom, shall be visually checked for tightness.
No matter what type of storage tank needs to be built, the natural conditions of the geographical area where the tank is located should be fully considered in the design. Because natural conditions will affect the service life, storage safety and construction cost of storage tanks such as API standard 650 unanchored liquid-storage tanks. Generally, the natural conditions that need to be considered before API standard 650 unanchored liquid-storage tanks design and construction are: regional temperature, wind load, snow load, ground endurance, external environment corrosion, etc.
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Before delivering our hot rolled plate product we apply various tests to check the quality of carbon steel API standard 650 unanchored liquid-storage tanks plates such as- mechanical test, chemical test, hardness test, toughness test, eddy current test, impact test, micro test, flaring test, flattening test, etc. We are provided best packing for structural steel plates to avoid rust. Our after-sales service team will contact you if you have any question.
