Pressure Loss Chart For PE Tubing

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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 TubingMax. Flow GPM (GPH)PSI Loss/100ftSch 40 PVCMax. Flow GPM (GPH)PSI Loss/100ft
1/2″4.6 (276)8.81/2″4.6 (276)7.7
3/4″8.2 (492)6.33/4″8.2 (492)5.6
1″13.4 (804)4.81″13.4 (804)4.2
1 1/4″23 (1380)3.11 1/4″23 (1380)3.1
1 1/2″33.8 (2028)2.91 1/2″33.8 (2028)2.9
2″52.3 (3138)1.92″52.3 (3138)1.9

 

irrigationdirectPressure Loss Chart For PE Tubing

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