This calculator estimates the head loss through a pipe based on the selected equation method.
The velocity is: m/s
The Reynolds Number is:
The friction factor is:
The head loss is: m
| Pipe Material | Diameter (mm) | Roughness (mm) |
|---|---|---|
| Galvanized iron | 15-100 | 0.15-0.25 |
| PVC | 15-200 | 0.0015-0.007 |
| Copper | 15-100 | 0.0015-0.005 |
| Stainless steel | 15-100 | 0.015-0.030 |
| Concrete | 150-3000 | 0.3-3.0 |
| Asbestos cement | 150-3000 | 0.1-1.0 |
| Cast iron | 15-100 | 0.26-0.61 |
| Brass | 15-100 | 0.0015-0.003 |
| Material | C Factor low | C Factor high |
|---|---|---|
| Asbestos-cement | 140 | 140 |
| Cast iron new | 130 | 130 |
| Cast iron 10 years | 107 | 113 |
| Cast iron 20 years | 89 | 100 |
| Cement-Mortar Lined Ductile Iron Pipe | 140 | 140 |
| Concrete | 100 | 140 |
| Copper | 130 | 140 |
| Steel | 90 | 120 |
| Galvanized iron | 120 | 120 |
| Polyethylene | 140 | 140 |
| Polyvinyl chloride (PVC) | 150 | 150 |
| Fibre-reinforced plastic (FRP) | 150 | 150 |
