Levitronix BPS-2000 - 2.5 NPSHr Curves

User Manual for BPS-2000
www.levitronix.com
PL-4021-00, Rev06, DCO# 21-037
10
2.5 NPSHr Curves
Figure 8: Figure 9: Pressure/flow curves for main system configurations.
0
2
4
6
8
10
0 5 10 15 20 25 30 35
0.0
0.2
0.4
0.6
0.8
1.0
0 20 40 60 80 100 120 140
[m]
[gpm]
[bar]
[lpm]
8000 rpm
7000 rpm
5000 rpm
6000 rpm
Specific gravity = 1 g/cm
3
Viscosity = 0.7 cP
Liquid Temp.: 40 C
NPSHr Cirteria:
Minimum absolute inlet pressure, where
the pump pressure is reduced by 3%.
5000 rpm
6000 rpm
8000 rpm
7000 rpm
0
2
4
6
8
10
0 5 10 15 20 25 30 35
0.0
0.2
0.4
0.6
0.8
1.0
0 20 40 60 80 100 120 140
[m]
[gpm]
[bar]
[lpm]
Specific gravity = 1 g/cm
3
Viscosity = 0.7 cP
Liquid Temp.: 40 C
NPSHr Cirteria:
Minimum absolute inlet pressure, where
the pump pressure is reduced by 3%.
9000 rpm
5000 rpm
6000 rpm
7000 rpm
8000 rpm
0
2
4
6
8
10
0 2 4 6 8 10 12 14 16 18 20 22
0.0
0.2
0.4
0.6
0.8
1.0
0 10 20 30 40 50 60 70 80
[m]
[gpm]
[bar]
[lpm]
Specific gravity = 1 g/cm
3
Viscosity = 0.7 cP
Liquid Temp.: 40 C
NPSHr Criteria:
Minimum absolute inlet pressure where
the pump pressure is reduced by 3%.
10000 rpm
9000 rpm
8000 rpm
5000 rpm
6000 rpm
7000 rpm
“High Flow”:
Typical data for pump head LPP-
2000.22
Representative for pump head LPP-
2000.14
Operation with controllers LPC-
2000.x and motors LPM-2000.x
“Hybrid”:
Typical data for pump head LPP-
2000.21
Operation with controllers LPC-
2000.x and motors LPM-2000.x
“High Pressure”:
Typical data for pump head LPP-
2000.7
Operation with controllers LPC-
2000.x and motors LPM-2000.x