Contact US

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!

*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

Impact of valve characteristics on the surge

Impact of valve characteristics on the surge

Impact of valve characteristics on the surge

thread124-468182: Surge Water Hammer Effective Valve closure time

dear All,

among the three characteristics which reflect the relation of the valve % travel to the flow rate, which valve characteristic would be more determintal to surge occurrence in case of:

- sudden closure and flow cessation
-sudden opening

do you agree that for the closure, it would be the quick opening since the last % opening would yield larger stoppage of flow. while for the sudden opening it would be the equal percentage??

Let's discuss


RE: Impact of valve characteristics on the surge

I think, regardless of valve characteristic, you should try to set the actuation time such that it doesn't cause hammering.

RE: Impact of valve characteristics on the surge

Yes that looks good to me.

This deceptions though tend to describe control valve opening. Types of valve have their own characteristics which tend to be fixed.

Flow velocity and valve closure speed have more to do with it though.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

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! Already a Member? Login


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