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NM4, NMS4 60 Hz
Characteristic curves n = 1750 rpm
H (m)
P (kW)
(%)
ηη
NPSH (m)
H (m)
P (kW)
(%)
η
NPSH (m)
30
20
10
0
0
0
3 m /h 10 15 20 25 30 35
Q
0 l/min 200 300 400 500
3,0
A
4
2,0
1,0
0,0
80
60
40
20
0
8
6
4
2
0
0
20
15
10
5
0 U.S. g.p.m. 50 100 150
Q m /h
36
H (m)
P (kW)
(%)
η
NPSH (m)
3 10 15 20 25 30 72.557N 35
0
3 10
20
30
40 72.558N 50
0 U.S. g.p.m. 50 100 150 200 250
H (m)
P (kW)
(%)
ηη
NPSH (m)
0
0
0
1,2
m /h
Q
l/min
10
200
20
400
30
600
40
800
1,0
A
0,8
0,6
0,4
0,2
0
80
B
3 50
0
0
0
2,5
3 m /h 10
Q
l/min 200
20
400
30
600
40 50
800
0
60
1000
0
0
0
4
m /h
Q
l/min
10
200
20
400
30
600
40
800
2,0
1,5
1,0
0,5
C
B
A 3
2
1
3
2
1
A
B
C
0,0
80
60
40
20
6
4
2
A ∅ 227
B ∅ 219
C ∅ 196
A ∅ 188
B ∅ 164
C ∅ 154
NM4 40/25
C
NM4 50/20
Q m /h
0
0
0
0 3 Q m /h 10 20 30 40 50 60
Q m /h
B
Close Coupled Centrifugal Pumps
with flanged connections
90
80
70
60
50
40
30
20
10
3
2
1
0
20
10
0
60
40
20
0
10
H (ft)
P (HP)
NPSH (ft)
H (ft)
P (HP)
NPSH (ft)
12
10
8
6
4
2
70
60
50
40
10
8
6
4
2
0
25
20
15
10
5
0
70
60
50
40
30
8
6
4
2
0 U.S. g.p.m. 50 100 150 200
A ∅ 156
B ∅ 144
NM4 50/16
0 U.S. g.p.m. 50 100 150 200
B ∅ 220
C ∅ 201
A ∅ 225
NM4 50/25
3 50
72.559N 0
3 10
20
30
40 72.560N 50
30
20
10
0
0
1,5
1,0
0,5
30
20
10
0
80
70
60
50
40
30
20
10
0
5
4
3
2
1
0
20
10
0
H (ft)
P (HP)
NPSH (ft)
H (ft)
P (HP)
NPSH (ft)