Flow At Different Rpm; App W Hc 15 - 24 Flow Curves Measured At 120 Barg ( 1740 Psig ) - Danfoss APP W HC Series Operation Manual

Data sheet | APP W HC 15 -30
5.

Flow at different rpm

If the flow required and the rotation speed (rpm) of the
pump is known, it is easy to select the pump fitting the
application best by using the diagrams below .

5.1 APP W HC 15 - 24 flow curves measured at 120 barg ( 1740 psig )

30
25
20
15
10
5
0
120
100
80
60
40
20
0
180R9410 | AQ282628894589en-000801 | IOM APP W HC 15-30 Pumps | 01.2022
Furthermore, these diagrams shows that the
flow can be changed by changing the rotation
speed of the pump . The flow/rpm ratio is
constant, and the "required" flow can be
obtained by changing the rotation speed to a
corresponding value . Thus, the required rpm
can be determined as:
Required flow x Rated rpm
Required rpm =
Rated flow
rpm
rpm
23