Advanced Composite Valves
4855 Broadmoor AveReduced trims are not available for Nil-Cor butterfly control valves, as is generally the case with all butterfly valve manufacturers. The Nil-Cor butterfly valve flow characteristic is modified equal percentage. Actual values are shown in the table below:
Butterfly Valve CV vs. Degrees Open | |||||||||
---|---|---|---|---|---|---|---|---|---|
Size | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | |
3" | 9 | 21 | 37 | 58 | 90 | 125 | 163 | 202 | 220 |
4" | 16 | 38 | 67 | 105 | 162 | 225 | 292 | 363 | 395 |
6" | 38 | 87 | 156 | 250 | 387 | 570 | 701 | 873 | 950 |
8" | 75 | 155 | 260 | 445 | 705 | 1085 | 1505 | 1885 | 2250 |
10" | 130 | 255 | 435 | 730 | 1145 | 1750 | 2440 | 2095 | 3640 |
12" | 180 | 365 | 620 | 1035 | 1630 | 2485 | 3470 | 4400 | 5180 |
Butterfly Valve Recovery Characteristic, FL and Cavitation Index, KC | |||||
---|---|---|---|---|---|
Deg. Open | 10 | 20 | 30 | 60 | 90 |
FL | 0.90 | 0.90 | .084 | 0.73 | 0.62 |
KC | 0.39 | 0.39 | 0.39 | 0.36 | 0.33 |
For more information on Nil-Cor Control Valves, contact your nearest Nil-Cor Representative or visit our contact page.