This chart is applicable for designing compressed air systems. The flow values in this chart are based on a pressure drop as set forth in the following schedule:
Pressure Drop per 100 Feet of Pipe Pipe Size - Inches
10% of Applied Pressure 1/8, 1/4, 3/8, 1/2
5% of Applied Pressure 3/4 & 1
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Nominal Standard Pipe Size - Inch |
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Derived Units = Pressure Drop per 100 Feet of Pipe (SCFM) |
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Applied
Pressure psig |
1/8 | 1/4 | 3/8 | 1/2 | 3/4 | 1 |
| 5 | 0.5 | 1.2 | 2.7 | 4.9 | 6.6 | 13 |
| 10 | 0.8 | 1.7 | 3.9 | 7.7 | 11.0 | 21 |
| 20 | 1.3 | 3.0 | 6.6 | 13.0 | 18.5 | 35 |
| 40 | 2.5 | 5.5 | 12.0 | 23.0 | 34.0 | 62 |
| 60 | 3.5 | 8.0 | 18.0 | 34.0 | 50.0 | 93 |
| 80 | 4.7 | 10.5 | 23.0 | 44.0 | 65.0 | 120 |
| 100 | 5.8 | 13.0 | 29.0 | 54.0 | 80.0 | 150 |
| 150 | 8.6 | 20.0 | 41.0 | 80.0 | 115.0 | 220 |
| 200 | 11.5 | 26.0 | 58.0 | 108.0 | 155.0 | 290 |
| 250 | 14.5 | 33.0 | 73.0 | 135.0 | 200.0 | 370 |