×
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

two pumps inseries

two pumps inseries

two pumps inseries

(OP)
Hi
If a have two pumps in series and the second pump is switched off, will i still get flow from the first pump through the second?    

RE: two pumps inseries

What type of pumps are they?

RE: two pumps inseries

Depends on many factors - you need to tell us a lot more about the pumps and the complete pumping system.

RE: two pumps inseries

(OP)
Hi

Pumps are centrifugal domestic circulators.
First pump is internal to the boiler and the second is in series after the boiler.

The second pump is on a seperate timer for the hot water.
The boiler pump is set to run on for 20 seconds to take heat away from the boiler but when this happens the hot water pump may be switched off from the timer

hope this helps

RE: two pumps inseries


I am assuming that when the boiler pump runs it is pumping into the "system", you therefore have to establish if both units need to run to overcome the system head, if the head in the system exceeds the head capability of the pump on the boiler, there will be no flow.
 

RE: two pumps inseries

try it?

But if possible disenganging the motor will reduce most of the resistance i think. the stopped pump will be a loss but how much is difficult to say.

Best regards

Morten

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