100
(kPa) (M) (FT)
50
0
10
5
0
0
0
10
20
30
40
50
60
0
1
5
3
2
1
0
40
30
20
10
0
(gpm)
(m3/hr )
(l/s)
CENTRIFUGAL PUMP SERIES NRF-36
SPEED 1
SPEED 3
SPEED 2
Figure 6: Centrifugal pump series NRF-25 with check valve
100
(kPa) (M) (FT)
50
0
10
5
0
0
0
10
20
30
40
50
60
0
1
5
3
2
1
0
40
30
20
10
0
(gpm)
(m3/hr)
(l/s)
CENTRIFUGAL PUMP SERIES NRF-36
SPEED 1
SPEED 3
SPEED 2
Figure 7: Centrifugal pump series NRF-25 without check valve
Commissioning, Startup, Operation, and Shutdown
NRF
™
-25,36,45/NBF
™
-25,36, and 45 Circulator Installation, Operation, and Maintenance Manual
15
