Levitronix BPS-4000 - Performance Curves

User Manual for BPS-4000
www.levitronix.com
PL-4016-00, Rev11, DCO# 18-057
8
2.3 Pressure-Flow Curves
Figure 7: Pressure/flow curves
Typical curves measured with pump head LPP-4000.5.
2.4 NPSHr Curves
Figure 8: NPSHr curves
Typical curves measured with pump head LPP-4000.5.
0
20
40
60
80
100
0 10 20 30 40 50 60 70
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
0 25 50 75 100 125 150 175 200 225 250 275 300
[psi]
[gallons/min]
[bar]
[liters/min]
Specific gravity = 1 g/cm
3
Viscosity = 0.7 cP
Liquid Temp.: 40C
7000 rpm
6000 rpm
5000 rpm
4000 rpm
8000 rpm
Limits at 90C
liquid temperature
Limits for up to 70C
liquid temperature
0
1
2
3
4
5
6
7
8
9
10
0 10 20 30 40 50 60 70
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0 25 50 75 100 125 150 175 200 225 250 275 300
[m]
[gallons/min]
[bar]
[liters/min]
NPSHr Definition and Limitation Reasons:
- The absolute inlet pressure were the pump pressure is reduced by 3%
- Limitation resulting from the axial limit of the impeller
Upper Axial Position
Limit of Impeller
7000 rpm
6000 rpm
5000 rpm
7500 rpm
5000 rpm
8000 rpm
6000 rpm
7000 rpm
Specific gravity = 1 g/cm
3
Viscosity = 0.7 cP
Liquid Temp.: 40C