×
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

RTJ Flange Bottom Groove Radius

RTJ Flange Bottom Groove Radius

RTJ Flange Bottom Groove Radius

(OP)
Anyone seen this before? Typically the radius is 0.8mm in acc with ASME B16.5

Requirement:
Ring type joint in high pressure and elevated temperature environments. The bottom groove radius shall be 3mm minimum

Reasoning:
Leakage from ring joint flanges in these services has occurred due to cracking emanating from the bottom groove radius - this is typically only 0.8mm and stresses imposed on such a sharp radius causes increased stress intensity which can crack under imposed mechanical and thermal loads.

RE: RTJ Flange Bottom Groove Radius

Interesting roca,
Does it require a custom ring gasket also? Would this B16.5 RTJ flange turning into a custom designed flanged joint or will be considered fully B16.5 compliant flange?
Cheers,
gr2vessels

RE: RTJ Flange Bottom Groove Radius

(OP)
Thanks - trying to get more info on why it is asked for.
Will be expensive too as these will need special machining to comply.

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