API standard 653 inspections are regularly done to ensure above ground tank longevity. They can be used as indicators of operational efficiency and safety. It also guarantees that tanks are following state regulatory requirements.
You should have your tanks checked by certified inspectors because they can help you get through the process completely in a professional and timely manner. API 653 storage tank inspections can make sure that your tanks are reliable, safe, and serve their purpose well.
Here are the four components of storage tanks that are subject for inspection.
Bottom, Shell, and Roof Components
First, it is essential to inspect the tank’s bottom, shell, and roof components. Different types of inspections to be performed include the use of tracer gas, vacuum box, liquid penetrant, magnetic particle, and penetrating oil. These are used to inspect the overall structure of the tank components.
Radiography, ultrasonic scan and spot, magnetic flux scan, and visual inspections are also applied to check for corrosion and leaks. These monthly inspections should be logged for future reference. Tank owners or an in-house inspector performs these inspections.
The inspection of the structure of the tank follows the initial components. Check the maximum corrosion rate, minimum thickness required, and minimum thickness remaining of the tank’s bottom, shell, and roof. The original thickness and corrosion rate, as well as its current status should be listed down. Whatever the results of the initial examination are, frequent inspections of these components should be conducted.
Inspecting the ground settlement of a storage tank is also important. This determines whether a tank is settling on the ground properly or is already tilting in its position. Part of inspecting the settlement of a tank includes evaluation of its plane, dish type, and uniform. Its rigid body, localized dispersions, and edge settlement are also assessed.
API 653 tank inspection also includes evaluation of tank specifications, spill control, and release detection. Keep in mind that internal inspections are due every 10 years, while external inspections are done every 5 years. This is applicable for formal API inspections.
Ensure that your company’s storage tanks meet the requirements. Have professionals use the standard inspections so your manufacturing business will keep on running smoothly.