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Valve settings for NV Vertex DN25 IG/IG
With specific valve settings, the Kvs and Kv values
refer to the drop in pressure across the valve and
are used to plan the system and dimension the
pumps.
Settin
Kvs
g
m³/
h
0.0
0.34
0.1
0.34
0.2
0.34
0.3
0.35
0.4
0.35
0.5
0.37
0.6
0.38
0.7
0.40
0.8
0.42
0.9
0.45
Settin
Kvs
g
m³/
h
5.0
2.85
5.1
2.91
5.2
2.97
5.3
3.04
5.4
3.10
5.5
3.17
5.6
3.23
5.7
3.30
5.8
3.37
5.9
3.44
Last updated: Aug-19
Settin
Kvs
Settin
g
m³/
g
h
1.0
0.48
2.0
1.1
0.51
2.1
1.2
0.55
2.2
1.3
0.59
2.3
1.4
0.63
2.4
1.5
0.67
2.5
1.6
0.72
2.6
1.7
0.77
2.7
1.8
0.82
2.8
1.9
0.87
2.9
Settin
Kvs
Settin
g
m³/
g
h
6.0
3.51
7.0
6.1
3.58
7.1
6.2
3.65
7.2
6.3
3.3
7.3
6.4
3.8
7.4
6.5
3.88
7.5
6.6
3.96
7.6
6.7
4.04
7.7
6.8
4.13
7.8
6.9
4.22
7.9
Kvs
Settin
m³/
g
h
0.93
3.0
0.98
3.1
1.04
3.2
1.10
3.3
1.16
3.4
1.23
3.5
1.29
3.6
1.35
3.7
1.42
3.8
1.48
3.9
Kvs
Settin
m³/
g
h
4.31
8.0
4.40
8.1
4.50
8.2
4.59
8.3
4.69
8.4
4.80
8.5
4.90
8.6
5.01
8.7
5.12
8.8
5.24
8.9
ENG
MeiFlow Shunt UD
Kvs
Settin
Kvs
m³/
g
m³/
h
h
1.55
4.0
2.21
1.62
4.1
2.27
1.68
4.2
2.34
1.75
4.3
2.40
1.81
4.4
2.47
1.88
4.5
2.53
1.95
4.6
2.59
2.01
4.7
2.66
2.08
4.8
2.72
2.14
4.9
2.78
Kvs
Settin
Kvs
m³/
g
m³/
h
h
5.35
9.0
6.57
5.47
9.1
6.69
5.59
9.2
6.81
5.71
9.3
6.92
5.83
9.4
7.03
5.96
9.5
7.13
6.08
9.6
7.23
6.20
9.7
7.32
6.33
9.8
7.40
6.45
9.9
7.46
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