Rohrdurchfluss-Rechner — Formel
## Pipe Flow Rate
**Q = A x V**
Where A is the cross-sectional area of the pipe (pi x r squared) and V is the average fluid velocity. Convert inches to feet before computing the area. Multiply cu ft/s by 448.831 to get gallons per minute.
**Q = A x V**
Where A is the cross-sectional area of the pipe (pi x r squared) and V is the average fluid velocity. Convert inches to feet before computing the area. Multiply cu ft/s by 448.831 to get gallons per minute.
Lösungsbeispiel
A 2-inch inside-diameter pipe with water flowing at 5 ft/s.
- Radius in feet = 2 / 2 / 12 = 0.0833 ft
- Area = pi x 0.0833 squared = 0.02182 sq ft
- Q = 0.02182 x 5 = 0.1091 cu ft/s
- GPM = 0.1091 x 448.831 = 48.95 GPM