300
250
1
200
2
3
150
4
100
5
50
0
0
500
1000
1500
2000
2500
3000
GPM
Design point
Curve
Trim
Max. hp @ 1.0 SG
Flow (U.S. gpm)
1685
1
14.00
53.21
Head (ft)
100
2
13.00
37.46
Speed (rpm)
1470
3
12.00
27.82
Trim (in.)
14
4
11.00
20.82
Horsepower (hp)
50.5
5
10.00
15.12
Efficiency (%)
83.7
Static head (ft)
0.0
Figure A1. Pump curves for 1800-rpm impeller. (Adapted from Cornell 1995.)
200
150
1
2
3
100
4
5
50
0
0
500
1000
1500
2000
2500
3000
GPM
Design point
Curve
Trim
Max. hp @ 1.0 SG
Flow (U.S. gpm)
1685
1
14.00
97.70
Head (ft)
100
2
13.00
68.78
Speed (rpm)
1800
3
12.00
51.08
Trim (in.)
12
4
11.00
38.23
Horsepower (hp)
50.5
5
10.00
27.75
Efficiency (%)
81.8
Static head (ft)
0.0
Figure A2. Pump curves for 1470-rpm impeller. (Adapted from Cornell 1995.)
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