100
90
80
70
60
50
40
30
20
10
0
0
400
800
1200
1600
Portata (l/h)
2000
2400
100
90
80
70
60
50
40
30
20
10
0
max
max
A
B
min
min
P
r
e
v
a
l
e
n
z
a
(
k
P
a
)
P
o
t
e
n
z
a
a
s
s
o
r
b
i
t
a
c
i
r
c
o
l
a
t
o
r
e
(
W
)
2800
100
90
80
70
60
50
40
30
20
10
0
0
400
800
1200
1600
Portata (l/h)
2000
2400
100
90
80
70
60
50
40
30
20
10
0
max
max
A
B
min
min
P
r
e
v
a
l
e
n
z
a
(
k
P
a
)
P
o
t
e
n
z
a
a
s
s
o
r
b
i
t
a
c
i
r
c
o
l
a
t
o
r
e
(
W
)
2800