API 650 flexible liquid storage tanks selection guidelines
In order to prevent the deformation of the bottom of metal vertical storage tank, API 650 flexible liquid storage tanks during welding, the number of welders should be reasonably distributed. When welding metal vertical API 650 flexible liquid storage tanks, personnel and welding position shall be reasonably allocated according to the actual situation of welding personnel, and random welding is not allowed.
Cylindrical Oil Storage Tanks Discharge PipesWhen a discharge pipe is used on the outlet side of such relieving devices, its area shall be not less than the area of the valve outlet, or if a single pipe provides for discharge from several relief devices, its area shall be not less than the aggregate area of the valve outlets. The API 650 flexible liquid storage tanks discharge pipe shall be fitted with an open drain to prevent water or other liquids from lodging in the discharge side of the valves.Discharge pipes shall be supported so that no undue stress is placed on the valve body. Open discharges shall be placed and oriented so that the outflow is directed away from the tank and will not create a hazard over walkways, stairways, or operating platforms.
API 650 storage tank stipulates that if the thickness of the lower wall panel obtained by calculating the anti-overturning moment is greater than the thickness of the API 650 flexible liquid storage tanks hydrostatic pressure test (both do not include the corrosion allowance).
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