Install Instructions

VB6 series 6-Way Control Ball Valves and Actuators - Installation Instructions
9 31-00380M-01
Flow Rate as per Valve Pressure Difference (ΔP)
Table 2. Flow rate as per Valve Pressure difference
Valve Size
(inch)
C
V
value
for sequence
1 or 2*
Flow Rate (in gpm) for below Valve ΔP (in psid)
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
*For fully open valve position.
For example:
The VB6A003+012+AL valve is with C
V
0.30 (for sequence 1) and C
V
is 1.20 (for sequence 2). If we consider the valve
pressure difference (ΔP) 0.5 psid then as per above table, the Flow rate for sequence 1 will be 0.21 gpm and for sequence
2 will be 0.85 gpm.