FIELD: hydraulic engineering. SUBSTANCE: invention relates to design of hydraulically-operated pumps with reciprocating working members designed for lifting of water from water reservoirs using potential energy of water of said reservoirs. Proposed pumping plant contains hydraulic motors including piston and valve units connected with converters of reciprocating motion into rotary motion by means of tie-rods and flexible members. Converters, in their turn, are connected with piston pumps through system of rollers and flexible members. Device features high operating reliability and relatively low production costs. EFFECT: improved operation reliability. 5 dwg
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