Velocity and Flow Capacity of Oil Schedule 80 Pipe

Velocity and Flow Capacity of Oil Schedule 80 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 80 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 0.23 0.45 1.13 1.70 2.26 3.40
1/4 0.45 0.89 2.23 3.35 4.47 6.70
3/8 0.88 1.75 4.38 6.57 8.76 13.14
1/2 1.46 2.92 7.30 10.95 14.60 21.90
3/4 2.70 5.39 13.48 20.22 26.96 40.44
1 4.48 8.97 22.42 33.63 44.84 67.26
1-1/4 8.00 15.99 39.99 59.98 79.97 119.96
1-1/2 11.02 22.03 55.08 82.63 110.17 165.25
2 18.41 36.82 92.04 138.07 184.09 276.13
2-1/2 26.42 52.84 132.11 198.17 264.22 396.33
3 41.18 82.36 205.89 308.84 411.78 617.67

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