| Loss of Pressure in PSI Per Pipe ID | ||||||
|---|---|---|---|---|---|---|
| Angle of Bend | 1/2″ | 3/4″ | 1″ | 1 (1/4)” | 1 (1/2)” | 2″ |
| 45° | 1.38 | 0.09 | 0.03 | 0.007 | ||
| 90° | 1.42 | 0.34 | 0.10 | 0.026 | 0.012 | |
| Gauge Pressure Before Orifice in PSI |
Diameter of Orifice | ||||
|---|---|---|---|---|---|
| 1/64″ | 1/32″ | 1/16″ | 1/8″ | 1/4″ | |
| Discharge in Cubic Feet of Free Air Per Minute | |||||
| 90 | .370 | 1.48 | 5.92 | 23.70 | 94.80 |
| 100 | .406 | 1.62 | 6.49 | 26.00 | 104.00 |
| 110 | .441 | 1.76 | 7.05 | 28.20 | 113.00 |
| 120 | .476 | 1.91 | 7.62 | 30.50 | 122.00 |
| 125 | .494 | 1.98 | 7.90 | 37.60 | 126.00 |
| 150 | .582 | 2.37 | 9.45 | 37.50 | 150.00 |
| 200 | .761 | 3.10 | 12.35 | 49.00 | 196.00 |
| 250 | .935 | 3.80 | 15.18 | 60.30 | 241.00 |
| 300 | .995 | 4.88 | 18.08 | 71.80 | 287.00 |
| 400 | 1.220 | 5.98 | 23.81 | 94.50 | 378.00 |
| 500 | 1.519 | 7.41 | 29.55 | 117.30 | 469.00 |
| 750 | 2.240 | 10.98 | 43.85 | 174.00 | 696.00 |
| 1000 | 2.985 | 14.60 | 58.21 | 58.21 | 231.00 |
| Gauge Pressure Before Orifice in PSI |
Diameter of Orifice | |||||
|---|---|---|---|---|---|---|
| 3/8″ | 1/2″ | 5/8″ | 3/4″ | 7/8″ | 1″ | |
| Discharge in Cubic Feet of Free Air Per Minute | ||||||
| 90 | 213.00 | 379.00 | 592.00 | 853.00 | 1162.00 | 1516.00 |
| 100 | 294.00 | 415.00 | 649.00 | 934.00 | 1272.00 | 1661.00 |
| 110 | 254.00 | 452.00 | 705.00 | 1016.00 | 1383.00 | 1806.00 |
| 120 | 274.00 | 488.00 | 762.00 | 1097.00 | 1494.00 | 1951.00 |
| 125 | 284.00 | 506.00 | 790.00 | 1138.00 | 1549.00 | 2023.00 |
| 150 | 338.00 | 600.00 | 910.00 | 1315.00 | 1789.00 | 2338.00 |
| 200 | 441.00 | 784.00 | 1225.00 | 1764.00 | 2401.00 | 3136.00 |
| 250 | 542.00 | 964.00 | 1508.00 | 2169.00 | 2952.00 | 3856.00 |
| 300 | 646.00 | 1148.00 | 1795.00 | 2583.00 | 3515.00 | 4592.00 |
| 400 | 851.00 | 1512.00 | 2360.00 | 3402.00 | 4630.00 | 6048.00 |
| 500 | 1055.00 | 1876.00 | 2930.00 | 4221.00 | 5745.00 | 7504.00 |
| 750 | 1566.00 | 2784.00 | 4350.00 | 6264.00 | 8525.00 | 11136.00 |
| 1000 | 924.00 | 2079.00 | 5790.00 | 8316.00 | 11318.00 | 14784.00 |