Caracterização hidráulica de tubos perfurados flexíveis de polietileno.

Abstract

This paper deals with determination of the polyethylene flexible pipe hydraulic characteristics. The relationship of the pressure-discharge, pipe perforation diameter size coefficient of variation, water depth profile distribution pattern and the coefficient of uniformity throughout the water emitters line were determined for water pressure of 20, 40, 60 and 80 kPa. The pipe emitters presented a very good uniformity coefficient ( < 3,31 %) in the range of pressure work of 20 to 80 kPa. It was also observed that the perforated polyethylene flexible pipe is suitable in drip irrigation system for using the pipe line between row crop planting system.