×
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

Allowable Nozzle/Termination Point Loads

Allowable Nozzle/Termination Point Loads

Allowable Nozzle/Termination Point Loads

(OP)
A customer of mine has asked for the acceptable nozzle/termination point loads for a pump feedback loop system. We provide a pump and a branched connection from the main pipeline they have, and they design the pipe layout to the pump based on the allowables.

It seems that acceptable pump loads are given in API 610 for the pump, but where can I find more information on allowable moments and loads for the branched connection, which I interpret as the "termination point"?

I've been looking at descriptions ofthe WRC 537 standard which looks to have the required information, but it doesn't seem to distinguish between sustained, thermal, and occasional loads. ASME B31.3 has allowable stresses, but not an explicit table of acceptable loads though I'm more inclined to use the latter.

Any thoughts on which way to go, or if there's another standard to look at instead?

Cheers

RE: Allowable Nozzle/Termination Point Loads

DezSez...

In my opinion, your modification and new "nozzles" on an existing system requires you to perform a detailed reanalysis of the system.

The new analysis should be of both the original and modified piping system and the evaluation should be against the allowable stresses of the code of record for the system.

You should be careful that the proper SIFs are included at the branch connection

WRC 537/297/107 applies to nozzles on stationary equipment, not to mid piping system tie points.

A sketch might help quite a bit with your problem description.

What type of branch connection was used ???

MJCronin
Sr. Process Engineer
Venture Engineering & Construction
www.VentureEngr.com

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