WATER OUTLET OF IRRIGATION PIPELINE Russian patent published in 2008 - IPC A01G25/02 

FIELD: technique for drop irrigation of farm crops.

SUBSTANCE: water outlet has opening provided in pipeline wall. Water outlet is formed as movable spherical valve positioned within receptacle made in the form of two hollow cones joined with their large bases. Small bases are oriented toward inner and outer walls of irrigation pipeline. Spherical valve is fixed within receptacle by means of arcuate plastoelastic members. Cone-shaped part of receptacle oriented toward inner cavity of irrigation pipeline has inlet passageways. Conical parts of receptacle positioned adjacent to inner and outer surfaces have different height values.

EFFECT: increased efficiency due to uniform dispensing of irrigation norms through the length of pipeline.

2 dwg