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Reference Table Details

Water Feet Head to Pressure (PSI)

Feet Head Pounds Per Square Inch
1 0.43
2 0.87
3 1.30
4 1.73
5 2.17
6 2.60
7 3.03
8 3.46
9 3.90
10 4.33
15 6.50
20 8.66
25 10.83
30 12.99
Feet Head Pounds Per Square Inch
40 17.32
50 21.65
60 25.99
70 30.32
80 34.65
90 38.98
100 43.31
110 47.64
120 51.97
130 56.3
140 60.63
150 64.96
160 69.29
170 73.63
Feet Head Pounds Per Square Inch
180 77.96
200 86.62
250 108.27
300 129.93
350 151.58
400 173.24
500 216.55
600 259.85
700 303.16
800 346.47
900 389.78
1000 433.00

NOTE: One foot of water at 62 degrees F = 0.433 PSI.
To find the PSI for any feet head not listed, multiply the feet head by 0.433.

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