×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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

Compress and UG-45 on old vessels

Compress and UG-45 on old vessels

Compress and UG-45 on old vessels

(OP)
Tom,

I came across your post "nozzle neck thickness output" regarding the UG-45 code requirements (see link below). I have a similar issue as plantguyjj, as I am evaluating a vessel fabricated in 1971 and the UG-45 requirements in the rating mode cause deficiencies in the nozzles. This vessel was fabricated before the UG-45 requirements and creates this discrepancy. I know that I can analyze the nozzles as "access openings" to exclude the UG-45 requirements, as you indicated in above mentioned post. My question is, is this a feasible solution? Is there anything in the code to support this? I agree that UG-45 should not apply to this older vessel, but I have not been able to find any backup information to support this.

Link

Thanks,

RE: Compress and UG-45 on old vessels


When evaluating a design you do it to the original code of construction, if there wasn't UG-45 considerations in that year/add of the code, then you don't need to do it. Any new work 'should' be done to the latest code.

INTERPRETATION 95-19

Subject: Original Code of Construction/Edition/Addenda

Edition: 1995

Question: When the NBIC references “the original code of construction,” is it required to use the edition and addenda of that code as used for construction?

Reply: No. The term “original code of construction” refers to the document itself, not the edition/addenda of the document. Repairs and alterations may be performed to the edition/addenda used for the original construction or a later edition/addenda most applicable to the work.

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


Resources

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