API standard 650 floating-roof tanks anchor straps
When the API standard 650 floating-roof tanks is welded, the weldment should be fixed rigidly. After welding, when the weldment is cooled to normal temperature, the rigid fixation can be removed, which can effectively prevent angular deformation and wave deformation. Although some measures have been taken, the welding deformation of API standard 650 floating-roof tanks is still unavoidable, so it is necessary to take corrective measures to compensate the deformation. Mechanical correction is to make the parts easy to deform in the welding process by mechanical or other rigid materials to produce simple deformation, so as to restore the state before welding.
Temperature Range: The provisions in this appendix are considered suitable for API standard 650 floating-roof tanks design metal temperatures from + 40°F to –60°F, inclusive. In general, refrigerated tank primary components include those components whose failure would result in leakage of the liquid being stored, those exposed to the refrigerated temperature, and those subject to thermal shock. Further definitions of such components are provided in API Standard 620 tank R.1.4.2 and R.1.4.3.
The internal floating plate of internal floating roof tank of API 650 tank is different from that of open floating plate of API standard 650 floating-roof tanks External floating roof tank of API 650 tank, so it is impossible to have rain and snow load.
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