ART 22
V1
Kv Values - DN 20
ART 22
Kvs=5.3
36
P
V
K
=
Q
0.08
0.06
0.04
20
30
40
50
60
80
0.2
0.3
0.4
0.5
0.6
0.8
8
6
5
4
3
2
0.02
0.1
1
0.1
Pr
essur
e Loss -
∆p
(kPa)
2
10
100
Flow rate -
Q
(l/s)
0.2
0.4
0.6 0.8 1
Turns N°
4.0
25% OPEN
3.0
2.0
1.0
0.3
1.5
0.5
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
-
-
-
0.54
0.73
0.89
1.04
1.16
1.30
1.42
1
1.54
1.64
1.74
1.84
1.93
2.03
2.10
2.17
2.26
2.31
2
2.37
2.42
2.48
2.53
2.58
2.63
2.71
2.82
2.96
3.04
3
3.17
3.31
3.44
3.54
3.64
3.70
3.76
3.80
3.82
3.83
4
3.88
