×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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!
  • Students Click Here

*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

Jobs

ASME Pressure Vessel
3

ASME Pressure Vessel

ASME Pressure Vessel

(OP)
Hello all,

Is there an ASME code for alterations/modifications of pressure vessels?
I am trying to find requirements for removing a nozzle to make way for a bigger nozzle (as long as it still passes the requirement, i.e. pressure, plate thickness, etc.)
I know NBIC has information but I do not know if ASME has one.

Thanks in advance,

eng741

RE: ASME Pressure Vessel

The ASME vessel codes are for initial construction, not for maintenance or modification, refer to the NBIC codes.

RE: ASME Pressure Vessel

eng741-

First, consider using a somewhat more descriptive subject line. You'll draw more interest and possibly get more replies. I almost skipped it.

ASME does not have vessel specific post construction guidance. As you know, the NBIC and API-510 generally throw you back to the original code of construction for design rules. The ASME does provide some guidance for general post construction activities related to pressure equipment and piping in ASME PCC-2 Repair of Pressure Equipment and Piping. In your situation, this document is intended to be worked along with NBIC and Section VIII.

RE: ASME Pressure Vessel

(OP)
Thank you both for the help, it is much appreciated

RE: ASME Pressure Vessel

If you are modifying the existing nozzle and replacing it with a larger one, you will have to run calculations for your modification per the original code of construction. (Not necessarily the original *edition* of the code - you could use the current edition of the code if your vessel meets certain criteria.) Follow NBIC and API 510 and run your calcs in the appropriate edition of Section 8.

ASME PCC-2 covers replacement of nozzles with larger ones, but refers you back to original code of construction for the design of it.

RE: ASME Pressure Vessel

(OP)
I will take a look at that, thank you KLee777

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!


Resources