×
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

Related Articles

Jobs

Do I need a surge valve or a surge vessel for small sewage lift pumping station with same elevation?
5

Do I need a surge valve or a surge vessel for small sewage lift pumping station with same elevation?

Do I need a surge valve or a surge vessel for small sewage lift pumping station with same elevation?

(OP)
Need advise please.

Do I need a surge valve or a surge vessel for small sewage lift pumping station with same elevation at the PS and at discharge point? The pressure at the discharge manhole is atmospheric pressure means zero.

Thank you guys. . .

RE: Do I need a surge valve or a surge vessel for small sewage lift pumping station with same elevation?

Would you post the image as a pdf attachment as it is impossible to read.

RE: Do I need a surge valve or a surge vessel for small sewage lift pumping station with same elevation?

Probably not, but you need to describe or provide information about what can casue the surge such as sudden valve closure or pump stop.

Velocity and length of pipe becomes important too.

If this is a simple very low head lift pump of a few metres, then no, but I can't read the picture either.

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

RE: Do I need a surge valve or a surge vessel for small sewage lift pumping station with same elevation?

2
From a maintenance standpoint I would strongly prefer to upgrade pipe class to handle any surge (or increase diameter to reduce velocity and surge magnitude)rather than installing anti-surge hardware in a sewage line.

RE: Do I need a surge valve or a surge vessel for small sewage lift pumping station with same elevation?

(OP)
Do I need a surge valve or a surge vessel for small sewage lift pumping station with same elevation? Attached is the pdf of the schematic diagram of the sewage lifting pumping station. Thank you very much, really appreciated.

RE: Do I need a surge valve or a surge vessel for small sewage lift pumping station with same elevation?

2
No, you do not need a surge valve or surge vessel. The discharge chamber is also not necessary. You can discharge directly into the proposed sewer manhole.

A surge valve is only necessary if you want to prevent a downhill force main from draining between pump cycles.

You should have check valves on the pumps. No check valves are shown on the sketch.

RE: Do I need a surge valve or a surge vessel for small sewage lift pumping station with same elevation?

(OP)
Thank you very much to all, Yes I provided Non-Return Valve (NRV) or Check Valve inside the valve chamber just right after the pump to prevent any back flow to damage the pump. Your technical advises are highly appreciated. Thank you sirs!

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


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