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


Centrifugal pump effieciency

Centrifugal pump effieciency

Centrifugal pump effieciency

Our company using 2 centriSfugal pumps to attain flowrate of 900 m3 hr. I WISH to use one pump to attain same capacity. How it canbe attain. pls suggest

RE: Centrifugal pump effieciency

By purchasing a pump with a design capacity of 900 m3/hr at the differential head that your system needs to get to 900 m3/ hr.

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

RE: Centrifugal pump effieciency

You know the flow rate. I would suggest to check the discharge pressure on a local gauge or transmitter. The suction pressure can also be checked or calculated. You then know the differential pressure and thus the required pump head for the given flow rate. Now select a pump that can provide this flow rate at the specified system pressure. What's the liquid being pumped?

RE: Centrifugal pump effieciency

Considering the possible operation alternatives to improve your system as below:
- increase the motor speed for pumping more flow
- reduce the line pressure loss to increase the flow with the current pump discharge head
- replace with a larger pump for the desired flow rate

RE: Centrifugal pump effieciency

without the pump curves, installation data etc. the answer is likely NO. LI's response is the only valid suggestion.

It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)

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!


White Paper: Industrial Control Basics: Contactors
A contactor is an electrical device used for switching an electrical circuit on or off. Considered to be a special type of relay, contactors are used in applications with higher current carrying capacity, while relays are used for lower current applications. Download Now
Research Report: State of IoT Adoption in Product Development 2019
This research report, based on a survey of 234 product development professionals, examines the current state of Internet of Things (IoT) adoption by product design teams, its perceived importance, and what features and capabilities teams consider important when making decision about adding IoT functionality to their products. Download Now

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