API Std 650 cylindrical welded storage tanks shell support
Sand blasting and derusting of API Std 650 cylindrical welded storage tanks uses compressed air as power and SiC, pomegranate sand and quartz sand as spraying materials to form high-speed jet beam, which is used to remove rust and dirt on the surface of metal storage tank and improve the binding force of workpiece with coating and plating material. Sand blasting is often used in API Std 650 cylindrical welded storage tanks construction.
The increased uplift described in API Standard 620 tank Appendix Q is intended to apply to the size of the ringwall and foundation but not the anchorage. For tanks with an internal design pressure of 1 lbf/in.2 gauge and over, the uplift, if any, shall be calculated under the combined conditions of 1.25 times the internal design condition plus the design wind load on the API Std 650 cylindrical welded storage tanks shell and roof.
Upon completion of construction, provide Purchaser with copies of Field Erected API Std 650 cylindrical welded storage tanks Storage Tank Datasheets in accordance with Appendix L of API 650, which reflects the as-built conditions, certifying that the tank conforms with the requirements of this specification.
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