FIELD: water-development works. SUBSTANCE: in taking water from headrace canal 1, young fish keeps off suction cone and gets inside chutes 2 forming filtering screen, after which it is directed towards fish discharge. In case of change in rate of flow of water being taken, longitudinal members 7 of chutes 2 change their position due to action of the drive and perforated barrages made of flexible material close clearances between chutes 2 and change their shape maintaining convexity directed towards headrace 1, thus directing waste and fish towards chutes 2. EFFECT: enhanced reliability. 4 dwg
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