API standard 650 vertical welded storage tanks piping and forgings

Strictly controlling the temperature in the API standard 650 vertical welded storage tanks can effectively reduce the volatile consumption of oil in large oil storage tanks. Because the higher the temperature in the oil storage tank, the stronger the activity of oil molecules and the greater the volatilization consumption of the oil. Therefore, the temperature in the API standard 650 vertical welded storage tanks must be reduced as much as possible. It is possible to reduce the direct sunlight temperature by painting white anticorrosive paint with good light reflectivity. It is also possible to use spray equipment to wash the top and wall of the API standard 650 vertical welded storage tanks with water flow to reduce the volatilization consumption of the oil in the storage tank.

Inspection of Butt-welds in Piping
Butt-welds in piping and in API standard 650 vertical welded storage tanks pipe fittings within the limitations of 1.3.2 (including the annular space of double- wall tanks) shall be inspected in conformance with API 620 oil tank standard Q.7.7.2 through Q.7.7.6. Longitudinal welded joints in piping that contains liquid shall be completely radiographed except for manufactured pipe welded without filler metal, 12 in. or less in diameter, which is tested hydrostatically or by eddy current to ASTM requirements.

There is a gap of 100 mm to 500 mm between the shell of API 650 crude oil storage API standard 650 vertical welded storage tanks tank and the floating plate of external floating roof to ensure that there is no chuck during operation. Use API standard 650 vertical welded storage tanks edge sealing system to reduce edge evaporation. The support legs of API 650 crude oil tank floating roof are usually movable and retractable and suspended in liquid.

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