Cooling Water - Pipe Lines
Sizing cooling water pipe lines - maximum allowable flow, velocity and pressure drops.
Main Pipes - maximum allowable flow, velocity and pressure drop
| Pipe Size (in) | Flow | Velocity | Pressure Drop | |||
|---|---|---|---|---|---|---|
| (US gpm) | (liter/s) | (ft/s) | (m/s) | (ftH2O/100 feet) | (Pa/100 m) | |
| 4 | 140 | 9 | 3.5 | 1.1 | 2.2 | 21827 |
| 6 | 380 | 24 | 4.2 | 1.3 | 1.9 | 18877 |
| 8 | 650 | 41 | 4.2 | 1.3 | 1.4 | 13371 |
| 10 | 1100 | 69 | 4.2 | 1.3 | 1.2 | 11700 |
| 12 | 1800 | 114 | 4.5 | 1.4 | 1.2 | 12093 |
| 14 | 2200 | 139 | 5.1 | 1.6 | 1.1 | 11208 |
| 16 | 3300 | 208 | 5.9 | 1.8 | 1.2 | 11405 |
| 18 | 4500 | 284 | 6.2 | 1.9 | 1.2 | 11503 |
| 20 | 6000 | 379 | 6.7 | 2.0 | 1.2 | 11503 |
| 24 | 11000 | 694 | 7.8 | 2.4 | 1.2 | 11700 |
| 30 | 19000 | 1199 | 8.7 | 2.6 | 1.1 | 10913 |
| 3 | 70 | 4 | 3.0 | 0.9 | 2.3 | 22712 |
Lateral Pipes - maximum allowable flow, velocity and pressure drop
| Pipe Size (in) | Flow | Velocity | Pressure Drop | |||
|---|---|---|---|---|---|---|
| (US gpm) | (liter/s) | (ft/s) | (m/s) | (ftH2O/100 feet) | (Pa/100 m) | |
| 4 | 200 | 13 | 5.1 | 1.5 | 4.3 | 42179 |
| 6 | 500 | 32 | 5.6 | 1.7 | 3.2 | 31364 |
| 8 | 900 | 57 | 5.8 | 1.8 | 2.5 | 24383 |
| 10 | 1500 | 95 | 6.1 | 1.9 | 2.1 | 20745 |
| 12 | 2400 | 151 | 6.8 | 2.1 | 2.1 | 20647 |
| 14 | 3100 | 196 | 7.2 | 2.2 | 2.1 | 20647 |
| 16 | 4500 | 284 | 7.9 | 2.4 | 2.1 | 20549 |
| 18 | 6000 | 379 | 8.3 | 2.5 | 2.0 | 19565 |
| 3 | 100 | 6 | 4.3 | 1.3 | 4.5 | 43949 |
