API standard 650 self anchored flatbottom tanks dimensional tolerances

Floating roof is the key component of floating roof API 650 storage tank, which can be divided into external floating roof and internal API standard 650 self anchored flatbottom tanks floating roof. The internal floating roof has a fixed top cover above the floating roof, which can prevent the floating roof from being exposed to wind and rain, and ensure the quality of oil stored under API 650 storage tank.

The company's logistics adopts the method of cooperation with logistics companies. As a third-party logistics company is engaged in the operation of multiple logistics projects, it can integrate various logistics resources, making the logistics operation cost relatively low and the logistics operations more efficient. Thus we can provide more professional logistics services, while also focusing on our core business of steel materials.

Materials for API standard 650 self anchored flatbottom tanks primary components shall comply with the requirements of Tables R-1 and R-2. All primary components shall be impact tested in accordance with R.2.1.2 through R.2.1.4. Impact testing of API 620 welded storage tanks plates, including structural members made of plate, shall comply with Table R-1. Impact test specimens shall be taken transverse to the direction of final plate rolling.

Static storage loss is also known as "small breathing" consumption. The rise and fall of the temperature in the API standard 650 self anchored flatbottom tanks leads to the increase and decrease of the pressure in the tank, which makes the mixed oil gas discharged from the tank, and the external air is sucked into the tank, resulting in the oil consumption. Fluid level loss is also called "big breathing" loss. It is the oil consumption caused by the change of gas space volume in the API standard 650 self anchored flatbottom tanks during the oil receiving and sending operation, which causes the mixed oil gas to be discharged out of the tank, and the external air is sucked into the tank, resulting in the oil consumption due to the change of liquid level height.