×
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

Hydrotest Pressure calculation for B31.3 1966

Hydrotest Pressure calculation for B31.3 1966

Hydrotest Pressure calculation for B31.3 1966

(OP)
Hi,

I need to rerate a pipe installed in 1966. Can any body send me the equstion used in B31.3 1966 for calculation of hydrostatic pressure.

Thanks in advance.

M. Waheed

RE: Hydrotest Pressure calculation for B31.3 1966

Why not tell us the details about the piping system in question?
The material:
The size:
The flange rating:
The maximum (planned) operating pressure:
Etc.

RE: Hydrotest Pressure calculation for B31.3 1966

(OP)
I have tried to rerate it to new code but calculated hydrostatic pressure is more than actual test pressure for the line. It means hydrotest is required to new test pressure. Perhaps Rehydrotest can be avoided if we use 1966 code. After all piping was designed to that code.

The lines are 2" to 8" in size. Flanges are 150#.Material API5l Gr.B. Pressures vary from 2 barg to 12 barg.

Regards

RE: Hydrotest Pressure calculation for B31.3 1966

men5muw,
-How about temperature?
-How about design condition?

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