I am working on a new refinery project in the middle-east where for internal coating application contractor is seeking to cut open the shell approximately 3.5 m x 3 m to allow easy entry of coating application equipment such as a man-lift. The tank has already been hydro-tested. Contractor proposes to re-install the shell and carry out radiography on the new welds (no hydro-test, though). To my understanding no significant welding should be carried out on a hydro-tested tank. While in Canada, I never received any such requests from the contractors although I awarded such tanks to many Alberta contractors. It is quite possible that such requests never reached the home office, so I never came to know about it.
Is it a common practice to make large openings in the shell for coating application? Has anyone allowed such deviation from API 650?
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
This white paper provides a complete guide to enclosure thermal design, covering all the main points that need to be considered. If you are responsible for enclosure-level thermal design, Simcenter provides a range of thermal design software, allowing you to select a product that is an ideal fit with your company’s thermal design workflow and supply chain needs. Download Now
How much PLM is right for smaller manufacturers? Midsized companies need capabilities but have limited resources. In this eBook, Jim Brown, President of Tech-Clarity, takes you through getting started with the right PLM solution. Download Now