IRRIGATION PIPELINE FOR DROP IRRIGATION SYSTEMS Russian patent published in 2008 - IPC A01G25/02 

FIELD: technique for irrigation of farm crops by drop irrigation process using flexible irrigation pipelines.

SUBSTANCE: irrigation pipeline has openings provided through wall and water outlets. Each water outlet is made in the form of arcuate valve-insert which closes opening provided through wall. Longitudinal and transverse grooves are formed on concave part of insert, said grooves having depth of 0.1-0.5 mm and being spaced from each other by distance of 1.0-2.0 mm. Insert is fixed in diametrical plane of pipeline for restricted movement within it.

EFFECT: uniform feeding of water along the entire length of pipeline.

4 dwg