Water Saturation Pressure

Water saturation pressure at temperatures ranging 0 - 100 deg C and 32 - 700 deg F, in Imperial and SI Units

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The water saturation pressure varies with temperature as indicated in the tables below:

Water Saturation Pressure - Imperial Units

Saturation pressure of water in pounds per square foot:

moisture air saturation pressure diagram - imperial units

Temperature - t - (^oF)	Absolute Vapor Pressure - p_v - (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

Water Saturation Pressure - SI Units

Saturation pressure of water in newton per square meter:

moisture air saturation pressure diagram - SI units

Temperature - t - (^oC)	Absolute Vapor Pressure - p_v - 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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