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Engineering ToolBox > Suction Head affected by Altitude
Suction head affected by altitude as:
| Elevation above Sea Level | Pressure | Practical Suction Lift | ||||
| (ft) | (m) | (psig) | (ft H2O) | (bar) | (ft H2O) | (m H2O) |
| 0* | 0* | 14.71 | 33.95 | 1 | 22 | 6.7 |
| 1320 | 402 | 14.02 | 32.38 | 0.97 | 21 | 6.4 |
| 2640 | 805 | 13.33 | 30.79 | 0.92 | 20 | 6.1 |
| 3960 | 1207 | 12.66 | 29.24 | 0.87 | 18 | 5.5 |
| 5280 | 1609 | 12.02 | 27.76 | 0.83 | 17 | 5.2 |
| 6600 | 2012 | 11.42 | 26.38 | 0.79 | 16 | 4.9 |
| 7920 | 2414 | 10.88 | 24.13 | 0.75 | 15 | 4.6 |
| 10560 | 3219 | 9.88 | 22.82 | 0.68 | 14 | 4.3 |
* Sea Level