|
Pipe Diameter
(Inches)
|
Gallons per Foot
|
Cubic Foot per Foot
|
Pressure (psig)
|
GPM @ 3 FPS
|
GPM @ 5 FPS
|
3FPS @ 30 PSI
|
5 FPS @ 45 PSI
|
|
2.00
|
0.163
|
0.022
|
100 - 200
|
29
|
49
|
8
|
20
|
|
3.00
|
0.367
|
0.049
|
100 - 150
|
66
|
110
|
18
|
45
|
|
4.00
|
0.653
|
0.087
|
75 - 125
|
118
|
196
|
32
|
80
|
|
6.00
|
1.469
|
0.196
|
50 - 100
|
264
|
441
|
72
|
180
|
|
8.00
|
2.611
|
0.349
|
30.- 80
|
470
|
783
|
128
|
321
|
|
10.00
|
4.080
|
0.545
|
20 - 60
|
734
|
1,224
|
200
|
501
|
|
12.00
|
5.875
|
0.785
|
10 - 50
|
1,058
|
1,763
|
289
|
722
|
|
14.00
|
7.997
|
1.069
|
10 - 40
|
1,439
|
2,399
|
393
|
982
|
|
16.00
|
10.445
|
1.396
|
5 - 35
|
1,880
|
3,133
|
513
|
1,283
|
|
18.00
|
13.219
|
1.767
|
5 - 30
|
2,379
|
3,966
|
650
|
1,624
|
|
20.00
|
16.320
|
2.182
|
5 - 25
|
2,938
|
4,896
|
802
|
2,005
|
|
22.00
|
19.747
|
2.640
|
5 - 25
|
3,554
|
5,924
|
970
|
2,426
|
|
24.00
|
23.501
|
3.142
|
5 - 20
|
4,230
|
7.050
|
1,155
|
2,887
|
|
26.00
|
27.581
|
3.687
|
5 - 20
|
4,965
|
8,274
|
1,355
|
3,388
|
|
28.00
|
31.987
|
4.276
|
5 - 20
|
5,758
|
9,596
|
1,572
|
3,930
|
|
30.00
|
36.720
|
4,909
|
5 - 10
|
6,610
|
11,016
|
1,804
|
4,511
|
|
32.00
|
41.779
|
5.585
|
5 - 10
|
7,520
|
12,534
|
2,053
|
5,133
|
|
34.00
|
47.165
|
6.305
|
5 - 10
|
8,490
|
14,149
|
2,318
|
5,794
|
|
36.00
|
52.877
|
7.069
|
5 - 10
|
9,518
|
15,863
|
2,598
|
6,496
|
|
38.00
|
58.915
|
7.876
|
5 - 10
|
10,605
|
17,675
|
2,895
|
7,238
|
|
40.00
|
65.280
|
8.727
|
5 - 10
|
11,750
|
19,584
|
3,208
|
8,020
|
|
42.00
|
71.971
|
9.621
|
5 - 10
|
12,955
|
21,591
|
3,537
|
8,842
|
|
48.00
|
94.003
|
12.566
|
5 - 10
|
16,921
|
28,201
|
4,619
|
11,548
|
|
54.00
|
118,972
|
15.904
|
5 - 10
|
21,415
|
35,692
|
5,846
|
14,616
|
|
60.00
|
146.880
|
19.635
|
5 - 10
|
26,438
|
44,064
|
7,218
|
18,044
|
|
72.00
|
211.506
|
28.274
|
5 - 10
|
38,071
|
63,452
|
10,394
|
25,984
|
|
GPM:
Based on 3 and 5 fps (feet per second) velocity.
|
|
SCFM:
Based on 3 fps @ 30 psi and 5 fps @ 45 psi.
Formula: Cubic foot of volume per linear foot of pipe, times psi in atmospheres (14.69), times fpm (feet per minute).
(Note: For each 14.69 psi increase (at 60 degree F. constant), volume in increased by 1 scfm per cubic foot.
|
|
PSIG:
Differential Pressure.
|
|
Note: Volumes and pressures are recommendations only.
Not to be considered as absolute requirements. Requirements will vary according to type of pipe, fluid, gas, materials in pipe, smoothness of pipe, viscosity, temperature, etc.
|
|
