Danfoss APP series

180R9346 | AQ240486503020en-001702 | 29© Danfoss | 2023.03
Operation guide Installation, Operation and Maintenance APP 53-92 pumps
The power requirements can be determined using one of the following guiding equations:7. Motor requirements
l/min x barg 16.7 x m
3
/h x barg 0.35x gpm x psig
Required power = [kW] or [kW] or
Calc. factor Calc. factor Calc. factor
1 hp = 0.75 kW
1 gpm = 3.79 l/min
1 m
3
/h = 4.40 gpm
1 kW = 1.34 hp
1 l/min = 0.26 gpm
1 gpm = 0.23 m
3
/h
Name rpm
Calculation
factor
APP 53 1500 528
APP 65 1500 534
APP 78 1500 534
APP 86 1700 528
APP 92 1780 522
7.1 Calculation factor at 60 barg / 870 psig for APP 53-92
6. Flushing valve curves
6.1 APP 53-92 integrated ushing valve
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
100 200 300 400 500 600
Pressure [barg]
Flow [l/min]
[Hp]