| Solid Irrigation Tubing Flow Rate and Pressure Loss Chart | Poly Tubing | Max. Flow GPM (GPH) | PSI Loss/100ft | Sch 40 PVC | Max. Flow GPM (GPH) | PSI Loss/100ft | | 1/2" | 4.6 (276) | 8.8 | 1/2" | 4.6 (276) | 7.7 | | 3/4" | 8.2 (492) | 6.3 | 3/4" | 8.2 (492) | 5.6 | | 1" | 13.4 (804) | 4.8 | 1" | 13.4 (804) | 4.2 | | 1 1/4" | 23 (1380) | 3.1 | 1 1/4" | 23 (1380) | 3.1 | | 1 1/2" | 33.8 (2028) | 2.9 | 1 1/2" | 33.8 (2028) | 2.9 | | 2" | 52.3 (3138) | 1.9 | 2" | 52.3 (3138) | 1.9 | Ref 1000 |
