API 5L grade B pipe API Std 650 ground supported tanks

Pipeline transportation of API 650 oil tank is not less than the maximum consumption of 3 to 5 days. The daily operating time of API Std 650 ground supported tanks office buildings and fuel oil equipment is 12-16 hours; for high-end residential hotel buildings, the daily operating time is 16-24 hours.

A cylindrical nozzle with a 12-in. inside diameter is located in solid plate in the sidewall of a cylindrical storage tank 60 ft in diameter so that its axis lies in a horizontal plane and forms an angle of 55° with a perpendicular to the sidewall at the point of intersection, as shown in Figure F-7. The thickness of the API Std 650 ground supported tanks sidewall plate, tw, in this area is 5/8 in., and no corrosion allowance is required. The total internal pressure, Pl + Pg, at the center of the opening is 26.1 lbf/in.2 gauge.

Generally speaking, the duration of the "exhalation" of the API Std 650 ground supported tanks is longer than that of the "inhalation" of the API Std 650 ground supported tanks every day. There are many factors affecting the "small breathing" loss, mainly including the following points: the change of temperature difference between day and night, sunshine time of the API Std 650 ground supported tanks location, open area of the API Std 650 ground supported tanks, atmospheric pressure, filling degree of API Std 650 ground supported tanks, etc. When the API Std 650 ground supported tanks is full of gas, the space volume is small, and the "small breathing" loss is less; if the space volume is large, the loss is also large.

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