Boiler house Level controls
2
Valve Kv selection graph
Pressure drop across the fully open valve psi
1.45 2
3 4 5
10
20 30
50
100 145
100 000 90 000 80 000 70 000 60 000
200 000
50 000
100 000 90 000 80 000 70 000 60 000
40 000
2.3 89
30 000
50 000
20 000
40 000
15 000
30 000
10 000 9 000 8 000 7 000 6 000
20 000
5 000
10 000 9 000 8 000 7 000
4 000
3 000
6 000
5 000
2 000
4 000
3 000
1 000
0.1
0.2 0.3
0.5
1
1.5 2
3 4 5
10
Pressure drop across the fully open valve bar
TI-S75-11 EMM Issue 5
Page 3 of 7
Selection of Modulating Feedwater Valves Electrically Actuated
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