×
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

Pre 1978 Safety Replacement

Pre 1978 Safety Replacement

Pre 1978 Safety Replacement

(OP)
I am told that the relief calculation changed in 1978.  I have been asked to investigate this due to that fact that a safety on a boiler steam drum needs to be replace in the furture.  The vendor's quote for an identical replacement valve at the original design inlet conditions now has an increase in the outlet capacity of ~20%.

I am looking to understand the details of the change in calc.  The drum was constructed in 1973 and I do not have a copy of any code pre 1986 (I or VIII).  Any and all help would be greatly appreciated.

Also, if someone has replaced a pre 1978 safety valve I would am interested in know how the increase in relief capacity was handled.

Thanks!

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