Flow At Different Rpm; App 11-13 Flow Curves At 60 Barg (870 Psig) - Danfoss APP 13 Installation, Operation And Maintenance Manual

Operating guide
Data sheet
5.

Flow at different rpm

© Danfoss | 2023.03
Installation, Operation and Maintenance APP 11-13
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.

5.4 APP 11-13 flow curves at 60 barg (870 psig)

m /h
3
m 15.0 /h
3
15.0
14.0
14.0
13.0
13.0
12.0
12.0
11.0
11.0
10.0
10.0
9.0
9.0
8.0
8.0
7.0
7.0
6.0
6.0
5.0
5.0
4.0
4.0
gpm
gpm
65.0
65.0
60.0
60.0
55.0
55.0
50.0
50.0
45.0
45.0
40.0
40.0
35.0
35.0
30.0
30.0
25.0
25.0
20.0
20.0
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
APP 13/1200
APP 13/1200
APP 11/1200
APP 11/1200
APP 13/1200
APP 13/1200
APP 11/1200
APP 11/1200
180R9264 | AQ115586503043en-000903 | 23
APP 13/1500
APP 13/1500
APP 11/1500
APP 11/1500
rpm
rpm
APP 13/1500
APP 13/1500
APP 11/1500
APP 11/1500
rpm
rpm