A841 Gr A plates API 650 open top welded storage tanks

Large Steel storage tank Anchorage
In addition to the loads in API 620 oil storage tank Q.4, Q.5.1, and Q.5.2, the anchorage for the tank that contains liquid, whether it be a single-wall tank or the inner tank of a double-wall tank, shall be designed to meet the requirements of Q.3.6.2 through Q.3.6.5. The anchorage shall accommodate movement of the tank wall and bottom caused by thermal changes. For anchored flat-bottom tanks, the anchorage shall be designed as described in Q.3.6.4.1 through Q.3.6.4.3.

This standard establishes minimum requirements for API 650 tank material, API 650 open top welded storage tanks design, fabrication, erection, and inspection for ertical. aboveground，closed- and open-top.

After using for a certain period of time, it is necessary to check the corrosion protection of the metal oil tank and paint the outer wall of the API 650 open top welded storage tanks with anti-corrosion paint. The inlet and outlet valves of API 650 open top welded storage tanks shall be inspected and maintained regularly to ensure they are in good condition. Oil tank will produce a lot of dirt when it is stored for a long time. Usually, the cleaning cycle of metal oil tank is about three to five years.