Velocity and Flow Capacity of Oil Standard Tubes

Fluid Flow Table of Contents
Hydraulic and Pneumatic Knowledge

Velocity and Flow Capacity of Oil Standard Tubes

Related:

V =(GPM x .3208) /A

GPM = (V x A)/0.3208

V = Oil velocity in feet per second
GPM = flow in gallons per minute (GPM)
A = Inside area of pipe in square inches (in2).

Oil Flow Capacity Standard Tubing
Units - > GPM (Gallons per Minute)
Tube
O.D.
Wall
Thickness
2
Ft/Sec
4
Ft/Sec
10
Ft/Sec
15
Ft/Sec
20
Ft/Sec
30
Ft/Sec
1/2
.035
.905
1.81
4.52
6.79
9.05
13.6
.042
.847
1.63
4.23
6.35
8.47
12.7
.049
.791
1.58
3.95
5.93
7.91
11.9
.058
.722
1.44
3.61
5.41
7.22
10.8
.065
.670
1.34
3.35
5.03
6.70
10.1
.072
.620
1.24
3.10
4.65
6.20
9.30
.083
.546
1.09
2.73
4.09
5.46
8.18
5/8

 

 

.035
1.510
3.01
7.54
11.3
15.1
22.6
.042
1.430
2.85
7.16
10.7
14.3
21.4
.049
1.360
2.72
6.80
10.2
13.6
20.4
.058
1.270
2.54
6.34
9.51
12.7
19.0
.065
1.200
2.40
6.00
9.00
12.0
18.0
.072
1.130
2.26
5.66
8.49
11.3
17.0
.083
1.030
2.06
5.16
7.73
10.3
15.5
.095
.926
1.85
4.63
6.95
9.26
13.9
3/4
.049
2.08
4.17
10.4
15.6
20.8
31.2
.058
1.97
3.93
9.84
14.8
19.7
29.6
.065
1.88
3.76
9.41
14.1
18.8
28.2
.072
1.75
3.51
8.77
13.2
17.5
26.4
.083
1.67
3.34
8.35
12.5
16.7
25.0
.095
1.53
3.07
7.67
11.5
15.3
23.0
.109
1.39
2.77
6.93
10.4
13.9
20.8
7/8
.049
2.95
5.91
14.8
22.2
29.5
44.3
.058
2.82
5.64
14.1
21.1
28.2
42.3
.065
2.72
5.43
13.6
20.4
27.2
40.7
.072
2.62
5.23
13.1
19.6
26.2
39.2
.083
2.46
4.92
12.3
18.5
24.6
36.9
.095
2.30
4.60
11.5
17.2
23.0
34.4
.109
2.11
4.22
10.6
15.8
21.1
31.7
1
.049
3.98
7.96
19.9
29.9
39.8
59.7
.058
3.82
7.65
19.1
28.7
38.2
57.4
.065
3.70
7.41
18.5
27.8
37.0
55.6
.072
3.59
7.17
17.9
26.9
35.9
53.8
.083
3.40
6.81
17.0
25.5
34.0
51.1
.095
3.21
6.42
16.1
24.1
32.1
48.2
.109
3.00
6.00
15.0
22.4
29.9
44.9
.120
2.83
5.65
14.1
21.2
28.3
42.4
1 1/4
.049
6.50
13.0
32.5
48.7
64.9
97.4
.058
6.29
12.6
31.5
47.2
62.9
94.4
.065
6.14
12.3
30.7
46.0
61.4
92.1
.072
6.00
12.0
30.0
44.9
59.9
89.8
.083
5.75
11.5
28.8
43.1
57.5
86.3
.095
5.50
11.0
27.5
41.2
55.0
82.5
.109
5.21
10.4
26.1
39.1
52.1
78.2
.120
5.00
10.0
25.0
37.4
50.0
74.9
1 1/2
.065
9.19
18.4
45.9
68.9
91.9
138
.072
9.00
18.0
45.0
67.5
90.0
135
.083
8.71
17.4
43.5
65.3
87.1
131
.095
8.40
16.8
42.0
63.0
84.0
126
.109
8.04
16.1
40.2
60.3
80.4
121
.120
7.77
15.5
38.8
58.3
77.7
117
1 3/4
.065
12.8
25.7
64.2
96.3
128
193
.072
12.6
25.2
63.1
94.7
126
189
.083
12.3
24.6
61.4
92.1
123
184
.095
11.9
23.8
59.6
89.3
119.
179
.109
11.5
23.0
57.4
86.1
115
172
.120
11.2
22.3
55.8
83.7
112
167
.134
10.7
21.5
53.7
80.6
107
161
2
.065
17.1
34.2
85.6
128
171
257
.072
16.9
33.7
84.3
126
169
253
.083
16.5
32.9
82.3
123
165
247
.095
16.0
32.1
80.2
120
160
240
.109
15.5
31.1
77.7
117
155
233
.120
15.2
30.3
75.8
114
152
227
.134
14.7
29.4
73.4
110
147
220

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