API 650 aboveground steel oil storage tanks fabrication requirements

API 650 stipulates that an open tank should be provided with a wind-resistant ring to ensure that the API 650 aboveground steel oil storage tanks tank body maintains its roundness when subjected to wind. There are no hard and fast rules for vault API 650 storage tanks. It can be determined by comparing the equivalent wall height with the maximum height of the unreinforced tank wall.

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 650 aboveground steel oil storage tanks shell, including the corner weld between the shell and the bottom, shall be visually checked for tightness.

In the event of continuous heavy rainfall, the inspection of the API 650 aboveground steel oil storage tanks farm should be strengthened to monitor and pay close attention to the soil moisture content of the tank farm in order to quickly take emergency measures. Check whether the seals of the oil unloading port and the oil measuring port are in good condition in time to prevent rainwater from leaking into the API 650 aboveground steel oil storage tanks from the oil unloading port and the oil measuring port, which will affect the oil quality.

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Japan is a typical shipping first, and its raw materials are imported from Oceania, central and South America and other Asian countries. Most of the API 650 aboveground steel oil storage tanks steel produced is exported to China and other Asian countries, and a small amount is exported to America. Shipping is the main way of its API 650 aboveground steel oil storage tanks steel international transportation. According to the data, steel goods account for about 20% of the total sea freight in Japan. The domestic transportation of Japanese steel is mainly truck.

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