Velocity and Flow Capacity of Oil Schedule 40 Pipe

Velocity and Flow Capacity of Oil Schedule 40 Pipe

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).

Schedule 40 Pipe Flow Capacity
Units - > GPM (Gallons per Minute)
Pipe NPT
Nom. Size
2
Ft/Sec
4
Ft/Sec
10
Ft/Sec
15
Ft/Sec
20
Ft/Sec
30
Ft/Sec
1/8 0.35 0.71 1.77 2.66 3.54 5.31
1/4 0.65 1.30 3.24 4.87 6.49 9.73
3/8 1.19 2.38 5.95 8.93 11.9 17.85
1/2 1.89 3.79 9.47 14.21 18.94 28.41
3/4 3.32 6.65 16.62 24.93 33.25 49.87
1 5.39 10.78 26.94 40.41 53.88 80.82
1-1/4 9.32 18.65 46.62 69.93 93.25 139.87
1-1/2 12.69 25.38 63.46 95.19 126.92 190.38
2 20.92 41.84 104.60 156.90 209.20 313.79
2-1/2 29.85 59.70 149.24 223.86 298.48 447.72
3 46.09 92.18 230.44 345.66 460.88 691.31

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