×
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

NPSH

NPSH

(OP)
What is NPSH(Net positive suction head)? Can anybody explain this.

RE: NPSH

Suggest you Google or Bing "what is NPSH" - 200,000 + entries to choose from.
Start with Wikipedia and then Mc Nally Institute.

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.)

RE: NPSH

The energy of a fluid as it reaches the pump.

I hate Windowz 8!!!!

RE: NPSH

See also http://www.eng-tips.com/faqs.cfm?fid=1598

NPSH is a calculation you do to to make sure that the liquid as it enters a pump has enough absolute head to stop it cavitating and the pump does not work properly and over time can destroy the impellor.

Strictly speaking, NPSHr for a pump is when the differential head reduces by 3%. Cavitation can occur before then, but if you're asking this sort of basic question this may be going a bit far....

My motto: Learn something new every day

Also: There's usually a good reason why everyone does it that way

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