Thanks for the replies. Out of an abundance of caution, I have been recommending that they install emergency vents in these tanks. Per my state's regulations and as guided by API 653, these tanks must undergo in in-service inspections every 5 years and an out-of-service inspection every 10-20...
Hey all,
I am a relatively new API 653 inspector (originally certified in 2021) and have recently been delving into the requirements for emergency venting for tanks that are inspected under API 653. Many of the tanks I have inspected are old (circa 1960) and lack original design or fabrication...
