Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

API 653 and Storage Tank Inspection

API 653 and Storage Tank Inspection

API 653 and Storage Tank Inspection

API 653 provides the owner-user a fair amount of latitude re: the extent of inspection that is done on aboveground atmospheric storage tanks. I'm curious how folks have used their local experience to come up with the extent of inspection that is actually done on particular tank shells and bottoms, and how they prioritize which tanks are inspected and when. Any info. that could be shared would be appreciated. Thanks.

RE: API 653 and Storage Tank Inspection

You are very correct that both API-653 (Also API-510, & API-570) and the OSHA & EPA codes allow a lot of latitude for certain parts of the inspections.  They must, however, be defensible and governed by "generally accepted good engineering practice"  The extent of the inspection should depend on variable such as operating conditions, product, consequence of failure, etc.  

Also the results of the inspection need to be evaluated by a competent engineer experienced in the design of storage tanks (or pressure vessels or piping, given the situation)

It has been my experience that many companies simply hire an API-653 inspection, and no thorough evaluation is performed.  

Unfortunately, I'm not sure whether I can leave me email address or my company's web site to give you more information

RE: API 653 and Storage Tank Inspection

For companies we have worked for, they decide what is considered a covered process. Then they determine a priority based on a lot of factors. When was the last inspection? Has this tank had a history of failures? What is the process.

As far as priority based on internals, one suggestion would to perform externals on the shells and roof. Pay particular attention to the bottom shell course, external ring and sump area for signs of corrosion. Then set a priority based on the corrosion rates of these components.

An alternative would be looking into accoustic emmissions?

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

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.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close