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VB6 SERIES 6-WAY CONTROL BALL VALVES AND ACTUATORS - INSTALLATION INSTRUCTIONS
31-00380M-02
Printed in USA
10
Flow Rate as per Valve Pressure Difference (
Δ
P)
*For fully open valve position.
For example:
The
012+AL
valve is with CV 0.30 (for sequence 1) and CV is 1.20 (for sequence 2).
If we consider the valve pressure difference (
Δ
P) 4 psid then as per above table, the Flow rate for
sequence 1 will be 0.60 gpm and for sequence 2 will be 2.40 gpm.
Valve
Size
CV Value
Flow Rate (in gpm) for below Valve
Δ
P (in psid)
(inch)
For Sequence
1or 2*
0.50 0.75 1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
9.00
10.00
1/2 inch
C
V
0.30
0.21 0.26
0.30
0.42
0.52
0.60
0.67
0.73
0.79
0.85
0.90
0.95
C
V
0.46
0.33 0.40
0.46
0.65
0.80
0.92
1.03
1.13
1.22
1.30
1.38
1.45
C
V
0.80
0.57 0.69
0.80
1.13
1.39
1.60
1.79
1.96
2.12
2.26
2.40
2.53
C
V
1.20
0.85 1.04
1.20
1.70
2.08
2.40
2.68
2.94
3.17
3.39
3.60
3.79
C
V
1.90
1.34 1.65
1.90
2.69
3.29
3.80
4.25
4.65
5.03
5.37
5.70
6.01
C
V
3.00
2.12 2.60
3.00
4.24
5.20
6.00
6.71
7.35
7.94
8.49
9.00
9.49
C
V
4.70
3.32 4.07
4.70
6.65
8.14
9.40
10.51
11.51
12.44
13.29
14.10
14.86
C
V
7.40
5.23 6.41
7.40
10.47 12.82 14.80
16.55
18.13
19.58
20.93
22.20
23.40
3/4 inch
C
V
4.70
3.32 4.07
4.70
6.65
8.14
9.40
10.51
11.51
12.44
13.29
14.10
14.86
C
V
7.40
5.23 6.41
7.40
10.47 12.82 14.80
16.55
18.13
19.58
20.93
22.20
23.40
C
V
10.00
7.07 8.66 10.00 14.14 17.32 20.00
22.36
24.49
26.46
28.28
30.00
31.62
C
V
14.00
9.90 12.12 14.00 19.80 24.25 28.00
31.30
34.29
37.04
39.60
42.00
44.27
Table 3. Flow rate as per Valve Pressure difference