FIELD: oil producing industry; oil well machinery. SUBSTANCE: proposed stage of multistage submersible centrifugal pump contains guide0vane assembly and open impeller installed in guide-vane assembly. Blades are arranged on lower surface of impeller driving disk, and holes are made in driving disk of impeller between blades. Lower edge of said blade is separated from upper surface of upper disk of guide-vane assembly by uniform clearance whose value is not less than 2 mm. Invention is aimed at decreasing wear of friction pairs owing to effectively dividing gas bubbles and dirt inclusions. EFFECT: increased efficiency and head of stage. 5 cl, 3 dwg
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