80
70
60
50
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2000
2100
PT
Head pressure
1
Inlet valve pressure F10 (MBC 5000 VEF)
2
Inlet valve pressure F8 (MBC 1900 VEF)
3
Inlet valve pressure F9 (MBC 3100 VEF)
40
35
30
25
20
15
10
5
0
1000
1500
PT
Head pressure
1
Inlet valve pressure F8 (MBC 1900 VEF)
2500
3000
2000
2500
3500
4000
3000
3500
2
3
1
PT
KW
4300
1
PT
KW
4000
4300
38