×
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

PSV Outlet Vent Stack - SR or LR

PSV Outlet Vent Stack - SR or LR

PSV Outlet Vent Stack - SR or LR

(OP)
What is more common to use on a PSV vent outlet to atm; LR elbow or SR elbow?

Reading a section in "Piping Handbook - 7th Edition" that states.. "The relief valve outlet shall consist of the mating flange and a fitting-bound short-radius elbow, in order to minimize the moment and forces imposed on the valve body."

Just curious if this is a common practice that I should start incorporating into my designs.

Thanks
DGrayPPD

RE: PSV Outlet Vent Stack - SR or LR

Probably not a bad idea, as moments and bending stresses can be aggrevated by longer radaii, however better yet would be to calculate the loads and stresses and provide additional support for the blow down vent whenever it is needed. Do not underestimate the loads that a blow down of this kind can have and alsways get a structural engineer to design the supports and braces. That's not something to leave up to a piping engineer.

Reaction to change doesn't stop it smile

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