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Water saturation pressure varies with temperature as indicated below:
Saturation pressure of water in pounds per square inch:

| Temperature - t - (oF) |
Absolute Vapor Pressure - pv - (psia, lb/in2) |
| 32 | 0.0885 |
| 40 | 0.1217 |
| 50 | 0.1781 |
| 60 | 0.2563 |
| 70 | 0.3631 |
| 80 | 0.5069 |
| 90 | 0.6979 |
| 100 | 0.9493 |
| 120 | 1.692 |
| 140 | 2.888 |
| 160 | 4.736 |
| 180 | 7.507 |
| 200 | 11.52 |
| 212 | 14.69 |
| 220 | 17.19 |
| 240 | 24.97 |
| 260 | 35.43 |
| 280 | 49.20 |
| 300 | 67.01 |
| 350 | 134.60 |
| 400 | 247.26 |
| 450 | 422.55 |
| 500 | 680.86 |
| 550 | 1045.43 |
| 600 | 1543.20 |
| 650 | 2208.40 |
| 700 | 3094.30 |
Saturation pressure of water in newton per square meter (Pa):

| Temperature - t - (oC) |
Absolute Vapor Pressure - pv - (103 Pa, N/m2) |
| 0 | 0.6105 |
| 5 | 0.8722 |
| 10 | 1.228 |
| 20 | 2.338 |
| 30 | 4.243 |
| 40 | 7.376 |
| 50 | 12.33 |
| 60 | 19.92 |
| 70 | 31.16 |
| 80 | 47.34 |
| 90 | 70.10 |
| 100 | 101.3 |
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