Power Requirements; Operation - Danfoss APP 1.0 Installation, Operation And Maintenance Manual

Data sheet
6.

Power requirements

7. Temperature and
corrosion
APP 0.6-1.0
Pump Flow
model
l/min m 3 /h
APP 0.6 10.2 0.61
APP 0.6 12.3 0.74
APP 0.8 13.6 0.82
APP 0.8 16.3 0.98
APP 1.0 16.5 0.99
APP 1.0 19.8 1.19
The power requirements can be determined
using one of the following guiding equations:
l/min x bar
Required power =
Calc. factor
1 hp = 0.75 kW
1 kW = 1.34 hp
1 gpm = 3.79 l/min
1 l/min = 0.26 gpm
3
1 m /h = 4.40 gpm
3
1 gpm = 0.23 m /h
7.1

Operation

Fluid temperature:
+2° C to +50° C (+35.6° F to 122° F) - dependent
on the NaCl concentration
Ambient temperature:
+2° C to +50° C (+35.6° F to 122° F)
The chart below illustrates the corrosive
resistance of different types of stainless steel
related to NaCl concentration and temperature.
All critical parts of the APP water pump is made
of Super Duplex.
80 º
C
70
60
50
316L
40
30
20
100
160
180R9262 / IOM APP 0.6-1.0 Appendices - v02 / 12.2012
Pressure
60 bar 70 bar
gpm 870 psi 1015 psi
2.69 1.38 kW 1.61 kW
3.25 1.66 kW 1.94 kW
3.61 1.73 kW 2.02 kW
4.31 2.07 kW 2.41 kW
4.37 2.14 kW 2.49 kW
5.24 2.57 kW 2.99 kW
16.7 x m3/h x bar
[kW] or
Calc. factor
If the water pump is operated at high salinity,
always flush the water pump with fresh water at
operation stop in order to minimize the risk of
crevice corrosion.
Duplex
Super Duplex
1000 10 000
1600 16000
rpm
80 bar
1160 psi
1.84 kW 2840
2.21 kW 3400
2.31 kW 2840
2.76 kW 3400
2.85 kW 2840
3.42 kW 3400
0.26 x gpm x psi
[kW] or [kW]
Calc. factor
CI -
100 000
ppm
NaCI
160000
ppm
Calc.
factor
475.8
475.8
475
475
474.6
474.6
7