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

Legs on API tanks

Legs on API tanks

Legs on API tanks

Would someone please verify if the following is true (I believe it is but I am starting to doubt myself and need to hear it from someone else.)

API-650 is for flat bottom tanks only - is this true?
If an API tank has legs it would be an API-620 tank not 650 - true?

one more question....can an API "code" tank be made up of multiple codes? I have a customer who wants a mix of codes but still wants it stamped....is that allowable?

thank you in advance for your clarification to the above.

RE: Legs on API tanks

An API tank on legs?  Not API-650, it's for flat bottom tanks only.  API-620 may be used for tanks on legs.  You may not mix-and-match Codes for a tank if you intend to put an API nameplate on the finished tank.  It should be either all API-650 or all API-620.  By contrast, you may pick and choose the appropriate Codes sections when providing a tank as non-Code.

Steve Braune
Tank Industry Consultants

RE: Legs on API tanks


One other option that you may consider.....

Many process engineering organizations specify smaller, vertical axis tanks (operating under 15 psig) to be designed, constucted, inspected and tested to ASME-VIII....but not ASME Code stamped.

Heads on these tanks are typically, F&D or ellipsodal and the tanks are supported on legs....

The number, design and size of legs can typically be supplied by the fabricator, but some firms have thier own standards.

Talk with a large tank/pressure vessel fabricator with an ASME Code stamp

Try these people...


Let us know what you decide......



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


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

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