Pressure Loss Chart For PE Tubing

Pressure Loss Chart For PE Tubing


An important consideration for both Drip Irrigation Systems and Sprinkler Irrigation Systems is pressure loss over distance for distribution, lateral and drip lines.  The following chart illustrates basic pressure loss and flow capacity for both Poly Tubing and Schedule 40 PVC pipe.

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

 

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