Danfoss APP W HC Series, Operation Manual

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Data sheet | APP W HC 15 -30
23 180R9410 | AQ282628894589en-000801 | IOM APP W HC 15-30 Pumps | 01.2022
5. Flow at different rpm
5.1 APP W HC 15 - 24 flow curves measured at 120 barg ( 1740 psig )
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 .
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 rpm =
Required flow x Rated rpm
Rated flow
0
5
10
15
20
25
30
m³
/h
rpm
0
20
40
60
80
100
120
gp
m
rpm