η = 67%
MEI≥ 0.40
4HR 18/22
H
(
m
)
4
4HR 18/16
37.6
4HR 18/12
4HR 18/9
4HR 18/6
4HR 18/4
Q = Portata H = Prevalenza manometrica totale
Q
m3/h
0
3.0
6.0
9.0
12.0
15.0
18.0
21.0
l/min
0
50
100
150
200 250 300
350 400 420
Tolleranza delle curve di prestazione secondo EN ISO 9906 Grado 3B.
258
0
180
0
170
160
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
25
50
75
100
US g.p.m.
Imp g.p.m.
feet
500
400
300
200
100
25
50
75
0
0
50
100
150
200
250
300
350
400
l/min
0
0
5
10
15
20
2
5
m3/h
Q4
24.0 25.2
4HRm 18/4
4HR 18/4
1.1
1.5
H
metri
23.4
22
21
19.7
18
16
13.5
10.4
6.6
5
4HRm 18/6
4HR 18/6
1.5
2
35
33.5
31.5
29.5
27
24
20.3
15.6
9.8
7
4HRm 18/9
4HR 18/9
2.2
3
52.5
50
47.5
44.5
40.5
36
30.5
23.4
14.8
11
–
4HR 18/12
3
4
70
66.5
63
59
54
48
40.5
31
19.7
14.5
–
4HR 18/16
4
5.5
94
89
84
79
72
64
54
41.5
26
19
–
4HR 18/22
5.5
7.5
129
122
116
108
99
88
74
57
36
26.5
–
4HR 18/30
7.5
10
176
167
158
148
135
120
101
78
49
36