Water Flow Hose - Pressure Loss
Pressure loss due to friction
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Water flow through hose and pressure loss due to friction are indicated in the diagram below.
- 1 psi = 6.9 kPa = 0.069 bar
- 1 ft (foot) = 0.3048 m
- 1 gal (US)/min =6.30888x10-5 m3/s = 0.227 m3/h
| Hose Nominal Diameter (inches) |
Internal Diameter (inches) |
| 1/8 | 0.125 |
| 3/16 | 0.1875 |
| 1/4 | 0.25 |
| 5/16 | 0.3125 |
| 3/8 | 0.375 |
| 7/16 | 0.4375 |
| 1/2 | 0.5 |
| 5/8 | 0.625 |
| 3/4 | 0.75 |
| 7/8 | 0.875 |
| 1 | 1 |
| 1 1/4 | 1.25 |
| 1 1/2 | 1.5 |
| 2 | 2 |
| 2 1/2 | 2.5 |
| 3 | 3 |
| 3 1/2 | 3.5 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
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