×
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

API 650 5-4b Help!

API 650 5-4b Help!

API 650 5-4b Help!

(OP)
I'm having difficulty trying to figure out the thickness of a shell manway. Should I use table 5-4b or always refer to footnote b?

Any help would be appreciated.
 

RE: API 650 5-4b Help!

You have to always use both.

RE: API 650 5-4b Help!

(OP)
IFRs,

If I have a shell that is 5/16" thk. and the repad is 5/16" thick will the neck of the manway be 1/4" thk according to the table or is it supposed to be 5/16"thk according to footnote b?

RE: API 650 5-4b Help!

The footnote rules in this case, use a 5/16" thick neck assuming the flange is thicker.

RE: API 650 5-4b Help!

(OP)
Yes the flange is thicker (1/2"). If the shell was thicker than the flange is that when i would refer to the table 5-4b?

RE: API 650 5-4b Help!

Each time, you choose the thinner of the flange and shell (footnote) and then verify that you are not thinner than the minimum (table).

RE: API 650 5-4b Help!

(OP)
Thanks for your help on this.  This cleared up alot of questions myself and others. I was always thinking the code was contradicting itself because of that table and footnote.

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