Orifice Size
Approximate Cv
Chart
The table below can be used to estimate a Cv if
the orifice size is known, or to relate the approximate orifice
size if the Cv is known.
Approximate
Orifice Size
(ins.) |
Approximate
Cv |
| 1/32 |
.02 |
| 3/64 |
.06 |
| 1/16 |
.09 |
| 3/32 |
.20 |
| 1/8 |
.30 |
| 9/64 |
.36 |
| 3/16 |
.53 |
| 1/4 |
.70 |
| 5/16 |
1.7 |
| 3/8 |
2 |
|
|
Approximate
Orifice Size
(ins.) |
Approximate
Cv |
| 1/2 |
3.5 |
| 5/8 |
4.5 |
| 11/16 |
5 |
| 3/4 |
7.5 |
| 1 |
13 |
| 1 1/4 |
17 |
| 1 1/2 |
25 |
| 2 |
48 |
| 2 1/2 |
60 |
| 3 |
100 |
|
|
