×
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

Compensation Pads on Lethal Service Vessels

Compensation Pads on Lethal Service Vessels

Compensation Pads on Lethal Service Vessels

(OP)
Hi all,

does ASME Section VIII, Div.1 probibit the use of compensation pads for nozzle reinforcement on vessels which are considered to be in lethal / dangerous service ?  If so, please direct me to the relevant paragraph.

Thanks.
John

RE: Compensation Pads on Lethal Service Vessels

Can't find that limitation: you are only required to full penetration weld the nozzle, and this can be done through the compensation pad.
The rules are in UW-2(a).

prex

http://www.xcalcs.com
Online tools for structural design

RE: Compensation Pads on Lethal Service Vessels

John

What is your position in this fabrication? Are you an owner or manufacturer?

There is no such limitation in the ASME VIII Div 1 code. I support prex cat D welds shall be full penetration.
I don't know the specifics of your vessel so you have to read the whole of UW-2. It gives requirements pertaining to service. The owner is responsible to identify lethal service if applicable.

Your question may be related to RT requirements of the UW-2. Some users may require a special nozzle configuration to facilitate the NDE. UW-2 describes an acceptable procedure for nozzle NDE.

Putting Human Factor Back in Engineering

RE: Compensation Pads on Lethal Service Vessels

(OP)
Hi all,

thank you very much for the valued information.  This confirms my opinion - that Cat D welds must be full pen and that comp pads may be used.  We are a manufacturer and are in a debate wrt money (as usual!!).  I am pretty well versed in the requirements of the Code (been around a while) and I was surprised to hear the contractors argument.  The contractor will not pay additional fees for changes because in their opinion the Code prohibits the use of comp pads on lethal service vessels, I have been arguing the point.
Regards.
John

RE: Compensation Pads on Lethal Service Vessels

Check out Interpretation VIII-1-98-113;  it explicitly answers your question.

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