TRVS15 25 Johnson Controls
PB_VG3000_03 2020
7
Valve Selection
The valve size for water applications can be dened using the diagram below, where the intersection of the pressure drop
across the valve and the ow must be within the white area.
40
30
20
10
8
6
5
4
3
2
1.0
0.8
0.6
0.4
0.3
0.2
0.10
0.08
0.06
0.04
0.03
0.02
100
80
60
40
30
20
1
3
4
6
8
10
Kvs
6.3
4
2.5
1.6
1.0
0.63
0.4
Pressure drop Δ p, in kPa (100 kPa = 1 bar)
Flow in m
3
/h
K
VS
selection diagram