ART 22
V1
Kv Values - DN 40
ART 22
Kvs=22.1
36
P
V
K
=
Q
0.8
0.6
0.4
0.2
20
30
40
50
60
80
0.2
0.3
0.4
0.5
0.6
0.8
8
6
5
4
3
2
0.1
1
0.1
Pr
essur
e Loss -
∆p
(kPa)
1
10
100
Flow rate -
Q
(l/s)
2
3
4
6
8 10
Turns N°
4.0
25% OPEN
3.0
2.0
1.0
0.3
0.5
1.5
Kv (Flow rate in m
3
/h @ 1 bar pressure drop)
Full turn
Tenths of turn
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
0
-
-
-
3.37
4.08
4.51
5.12
5.60
6.16
6.78
1
7.32
7.90
8.43
9.00
9.53
9.88
10.30
10.73
11.16
11.63
2
11.97
12.36
12.78
13.19
13.53
13.92
14.28
14.57
15.01
15.35
3
15.69
16.01
16.43
16.71
17.02
17.24
17.52
17.85
18.10
18.27
4
18.69
