Flow of Water Through Nozzles

Engineering Fluids

Flow of Water Through Nozzles in Cubic Feet per Second Table

Head in Feet,
at Nozzle
Pressure,
lb/in.2
Theoretical
Velocity,
ft/s
Diameter of Nozzle, Inches
1
1.5
2
2.5
3
3.5
4
4.5
5
2.17
17.93
0.10
0.22
0.39
0.61
0.88
1.20
1.56
1.98
10
4.33
25.36
0.14
0.31
0.55
0.86
1.24
1.69
2.21
2.80
20
8.66
35.87
0.20
0.44
0.78
1.22
1.76
2.40
3.13
3.96
30
12.99
43.93
0.24
0.54
0.96
1.50
2.16
2.93
3.83
4.85
40
17.32
50.72
0.28
0.62
1.11
1.73
2.49
3.39
4.43
5.60
50
21.65
56.71
0.31
0.70
1.24
1.93
2.78
3.79
4.95
6.26
60
25.99
62.12
0.34
0.76
1.36
2.12
3.05
4.15
5.42
6.86
70
30.32
67.10
0.37
0.82
1.46
2.29
3.29
4.48
5.86
7.41
80
34.65
71.73
0.39
0.88
1.56
2.45
3.52
4.79
6.26
7.92
90
38.98
76.08
0.41
0.93
1.66
2.59
3.73
5.08
6.64
8.40
100
43.31
80.20
0.44
0.98
1.75
2.73
3.94
5.36
7.00
8.86
120
51.97
87.85
0.48
1.08
1.92
2.99
4.31
5.87
7.67
9.70
140
60.63
94.89
0.52
1.16
2.07
3.23
4.66
6.34
8.28
10.48
160
69.29
101.45
0.55
1.24
2.21
3.46
4.98
6.78
8.85
11.20
180
77.96
107.60
0.59
1.32
2.35
3.67
5.28
7.19
9.39
11.88
200
86.62
113.42
0.62
1.39
2.47
3.87
5.57
7.58
9.90
12.53
250
108.27
126.81
0.69
1.56
2.77
4.32
6.22
8.47
11.07
14.01
300
129.93
138.91
0.76
1.70
3.03
4.74
6.82
9.28
12.12
15.34
350
151.58
150.04
0.82
1.84
3.27
5.11
7.37
10.02
13.09
16.57
400
173.24
160.40
0.87
1.97
3.50
5.47
7.87
10.72
14.00
17.72
450
194.89
170.13
0.93
2.09
3.71
5.80
8.35
11.37
14.85
18.79
500
216.54
179.33
0.98
2.20
3.91
6.11
8.80
11.98
15.65
19.81
Head in Feet,
at Nozzle
Pressure,
lb/in.2
Theoretical
Velocity,
ft/s
Diameter of Nozzle, Inches
5
6
7
8
9
10
11
12
5
2.17
17.93
2.45
3.52
4.79
6.3
7.9
9.8
11.8
14.1
10
4.33
25.36
3.46
4.98
6.78
8.9
11.2
13.8
16.7
19.9
20
8.66
35.87
4.89
7.04
9.59
12.5
15.8
19.6
23.7
28.2
30
12.99
43.93
5.99
8.63
11.74
15.3
19.4
24.0
29.0
34.5
40
17.32
50.72
6.92
9.96
13.56
17.7
22.4
27.7
33.5
39.8
50
21.65
56.71
7.73
11.13
15.16
19.8
25.1
30.9
37.4
44.5
60
25.99
62.12
8.47
12.20
16.60
21.7
27.4
33.9
41.0
48.8
70
30.32
67.10
9.15
13.18
17.93
23.4
29.6
36.6
44.3
52.7
80
34.65
71.73
9.78
14.08
19.17
25.0
31.7
39.1
47.3
56.3
90
38.98
76.08
10.37
14.94
20.33
26.6
33.6
41.5
50.2
59.8
100
43.31
80.20
10.94
15.75
21.43
28.0
35.4
43.7
52.9
63.0
120
51.97
87.85
11.98
17.25
23.48
30.7
38.8
47.9
58.0
69.0
140
60.63
94.89
12.94
18.63
25.36
33.1
41.9
51.8
62.6
74.5
160
69.29
101.45
13.83
19.92
27.11
35.4
44.8
55.3
66.9
79.7
180
77.96
107.60
14.67
21.13
28.76
37.6
47.5
58.7
71.0
84.5
200
86.62
113.42
15.47
22.27
30.31
39.6
50.1
61.9
74.9
89.1
250
108.27
126.81
17.29
24.90
33.89
44.3
56.0
69.2
83.7
99.6
300
129.93
138.91
18.94
27.27
37.12
48.5
61.4
75.8
91.7
109.1
350
151.58
150.04
20.46
29.46
40.10
52.4
66.3
81.8
99.0
117.8
400
173.24
160.40
21.87
31.49
42.87
56.0
70.9
87.5
105.9
126.0
450
194.89
170.13
23.20
33.40
45.47
59.4
75.2
92.8
112.3
133.6
500
216.54
179.33
24.45
35.21
47.93
62.6
79.2
97.8
118.4
140.8
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