Calculateur de Débit de Tuyauterie Gratuit
Calculez le débit d'eau dans une tuyauterie en fonction du diamètre et de la vitesse. Obtenez le résultat en gallons par minute.
Débit
48.96 GPM
Flow Rate vs Inside Diameter
Formule
## 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.
Exemple Résolu
A 2-inch inside-diameter pipe with water flowing at 5 ft/s.
- 01Radius in feet = 2 / 2 / 12 = 0.0833 ft
- 02Area = pi x 0.0833 squared = 0.02182 sq ft
- 03Q = 0.02182 x 5 = 0.1091 cu ft/s
- 04GPM = 0.1091 x 448.831 = 48.95 GPM
Questions Fréquentes
What is a typical residential water velocity?
Most plumbing codes recommend keeping velocity between 4 and 8 ft/s for supply lines. Higher velocities cause noise and accelerated pipe wear.
Does this formula work for any fluid?
Yes, the continuity equation Q = A x V applies to any incompressible fluid. The velocity you enter should reflect actual flow conditions.
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