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


Check valve leakage rate basis/philosophy for PSV sizng

Check valve leakage rate basis/philosophy for PSV sizng

Check valve leakage rate basis/philosophy for PSV sizng

I am trying to get feedback from the wider industry on the basis/philosophy considered/used for establishing the leakage rate back through check valves in view of calcualting required relief valve size to protect the upstream section the check valve is leaking into, this is specifically the case where two check are provided in series and one is considered to have completely failed and the other has a leakage rate based on for example a) ?? percentage of forward flow or b) ?? fraction of check valve rim face or area or c) any other basis.

I am sure many design and operating companies follow varying philosophy, if you can help and share your experience and company standard and / or point me in a direction of a guidance document or paper you may know of such as a international standard. Thank you all in advance for any guidance you can afford.


RE: Check valve leakage rate basis/philosophy for PSV sizng

one major oil refiner allows evaluation at 10% of forward flow.

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!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close