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Pump head and flow rate relation

by eaaaazizo
Tags: flow, head, pump, rate, relation
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eaaaazizo
#1
Oct7-10, 05:48 AM
P: 12
i need some help becoase i become confused
according to pump characteristic curve if the flow rate increased the head will decreased
the question is how i can increase the flow rate and what is the relation of RPM with head and flow rate
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russ_watters
#2
Oct7-10, 05:49 AM
Mentor
P: 22,239
Have a look at the pump affinity laws: http://www.engineeringtoolbox.com/af...aws-d_408.html
eaaaazizo
#3
Oct10-10, 02:41 AM
P: 12
Quote Quote by russ_watters View Post
Have a look at the pump affinity laws: http://www.engineeringtoolbox.com/af...aws-d_408.html
thank u for ur answer but this link is speake about changing rpms it is available to change the pump head by change pump capacity with constant RPM and how ?

russ_watters
#4
Oct10-10, 08:32 AM
Mentor
P: 22,239
Pump head and flow rate relation

By combining the first and second equations, you get an equation that tells you that by lowering the pressure resistance in the system, you'll get an increase in flow.


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