FIELD: control of liquid flow rates; heat supply systems. SUBSTANCE: proposed device has supply or return pipe lines and adjusting valves in the amount N and numbering n=0;1;2Е(N-1), where n is ordinal number of valve; they are mounted in parallel and differ from one another in flow rate by coefficient equal to 1/2. EFFECT: possibility of smooth regulation of liquid flow rate at required discreteness. 1 dwg
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