PAGE 11
Commercial Water
Goulds Water Technology
PERFORMANCE
The following curves show the performance of the three signs of NPO when operating at 3500 RPM.
IMPORTANT NOTE:
The NPO performance is very dependant on the clearance between the impeller and casing face plate. The curves
show the worst case performance with NPO motors. Individual pumps may produce up to 5 feet of additional TDH.
Use of other motors may result in lower performance. Contact Goulds Water Technology customer service for help
in selecting a pump for a specific OEM application.
0
20
40
60
80
0
10
20
25
60
50
40
30
20
10
0
20
5
0
90
70
50
30
10
15
5
70
80
90
15
10
1
/
2
HP
3
/
4
HP
1 HP
1
1
/
2
HP
2 HP
3 HP
6'
25 EFF %
30
25
30
8'
10'
12'
18'
32
32
G 5
3
⁄
8
" DIA.
H 5"
A 4
5
⁄
16
"
B 4"
C 3
3
⁄
4
"
D 3
1
⁄
2
"
E 3
1
⁄
4
"
F 3"
m
3
⁄ hr
Model NPO / 1SN Size (Tamaño) 1 x 1
1
⁄
4
-6
RPM 3500 Curve
(Curva)
CN0423R01
U.S. GPM
NOTE:
Not recommended for operation
beyond printed H-Q curve.
NOTA:
No se recomienda para funcionamiento
superior al impreso en la curva H-Q.
CAPACITY (CAPACIDAD) Q
METERS
METROS
FEET
PIES
TOT
AL D
YNAMIC HEAD
(C
ARGA
DINAMIC
A
TO
TAL)
H
NPSH
R
– FEET (PIES)
