Hydrostatic Water Pressure


Water pressure increases in direct relation to its height, for example the higher the water is from the point of measured the higher the measured pressure.

Water in a tank 10 meters high will exert a pressure of 1 Bar. The table below shows the height of water column in meters and feet and the pressure created measured in Pka, Bar, atmospheres (atm) and psi (pounds per square inch).


Height of Water Column

Pressure

(m)

(ft)

(kPa)

(Bar)

(atm)

(psi)

1

3.28

9.81

0.098

0.097

1.42

2

6.56

19.6

0.196

0.194

2.85

3

9.84

29.4

0.294

0.290

4.27

4

13.1

39.2

0.392

0.387

5.69

5

16.4

49.1

0.491

0.484

7.11

6

19.7

58.9

0.589

0.581

8.54

7

23.0

68.7

0.687

0.678

10.0

8

26.2

78.5

0.785

0.775

11.4

9

29.5

88.3

0.883

0.871

12.8

10

32.8

98.1

0.981

0.968

14.2

12

39.4

118

1.18

1.16

17.1

14

45.9

137

1.37

1.36

19.9

16

52.5

157

1.57

1.55

22.8

18

59.0

177

1.77

1.74

25.6

20

65.6

196

1.96

1.94

28.5

25

82.0

245

2.45

2.42

35.6

30

98.4

294

2.94

2.90

42.7

35

115

343

3.43

3.39

49.8

40

131

392

3.92

3.87

56.9

50

164

491

4.91

4.84

71.1

60

197

589

5.89

5.81

85.4

70

230

687

6.87

6.78

100

80

262

785

7.85

7.75

114

90

295

883

8.83

8.71

128

100

328

981

9.81

9.68

142


You can find solenoid valves according to the working pressure here..


Or find water solenoid valves here..