API 650 open top welded storage tanks out-of-service supplementary drains

API 650 open top welded storage tanks, Oil tank is a large-scale storage equipment used to store oil materials. Usually, the service life of API 650 open top welded storage tanks is related to the actual working conditions. The design service life of most oil tanks is 20 years, and some of them are 10-15 years. Generally, none of them is less than 10 years. However, the design service life of API 650 open top welded storage tanks is on the one hand, which is an ideal state, but there are many objective factors in the actual process, it is impossible to achieve the designed service life. How to effectively increase the service life of API 650 open top welded storage tanks?

API 620 storage tanks relative standard for referenceAPI Spec 5L, Specification for Line PipeAPI RP 520, Sizing, Selection, and Installation of Pressure-relieving Devices in Refineries, Part II—InstallationASME B31.3, Chemical Plant and Petroleum Refinery Piping (ANSI/ASME B31.3) ASME B36.10M, Welded and Seamless Wrought Steel Pipe (ANSI/ASME B36.10) ASME B96.1, Welded Aluminum-Alloy Storage Tanks (ANSI/ASME B96.1)ASTM A36 Structural Steel for API 650 open top welded storage tanksASTM A53 Zinc-Coated Welded and Seamless Pipe

Normal pressure API 650 storage tank: When the gas side pressure of API 650 storage tank is the same as atmospheric pressure or less than 13 atmospheres (gauge), API 650 open top welded storage tanks is called atmospheric storage tank. API 650 petroleum storage tanks low pressure storage tank: when the pressure is greater than 13 atmospheres (gauge) and less than 0.1MPa, it is called low pressure storage tank.