70
60
50
40
30
1.8
1.7
1.6
1.5
1.4
1.3
8
6
4
2
0 U.S. g.p.m.
10
20
28
0 U.S. g.p.m.
10
20
30
40
0
l/s
0.4
0.6
0.8
1
1.2
1.4
1.6
0
l/s
0.4
0.8
1.2
1.6
2
2.4
0
Qm
3
/
h
1
2
3
4
5
6
72.171
0
Qm
3
/h
2
4
6
8
72.17
2
10
60
220
200
50
180
160
40
180
160
140
120
100
80
140
120
30
100
20
0
Qm
3
/
h
1
2
3
4
5
6
0
Qm
3
/
h
2
4
6
8
10
0
l/min
20
30
40
50
60
70
80
90
100
0
l/min
40
60
80
100
120
140
160
2.4
2.2
2.0
2.0
1.8
1.6
1.4
2.6
2.4
2.2
2.0
1.8
1.6
25
20
15
10
1.8
1.2
8
25
20
15
4
10
6
5
2
5
0
0
0
0
231
Curve caratteristiche n ≈ 2900 1/min
NG 6/18
NG 6/18
Ø 157
NGM 6/18
Ø 149
NG 6/22
NG 6/22
Ø 157
NGM 6/22
Ø 149
NG 6/18
NGM 6/18
NG 6/22
NGM 6/22
N
P
S
H
m
P
k
W
H
m
N
P
S
H
f
t
N
P
S
H
m
P
H
P
P
k
W
H
f
t
H
m
N
P
S
H
f
t
P
H
P
H
f
t