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The influence of transit flow rate of water upon operative of the equipped with nozzles pressure pipeline is experimentally investigated. External pressure, which varies in the range of 1465-2295 mm, acted upon the pipeline. The angle  β  between vectors of velocities of the stream in the pipeline and jets which branch off through nozzles were given the value:  0°  ;  45°  ;  90°  ;  135°  ;  180° . The diameter of the pipeline was of D=20.18 mm, the diameter of nozzles d=6.01 mm. The distances between the nozzles were 180 mm, and the number of them 11. The value of the transit flow rate at input into the pipeline varied from 4.05 to 130.20  cm 3  / s . The increase in flow rate of the transit flux  Q tr caused increase in non-uniformity of distribution of operating heads and increase in flow rate of water along the pipeline over the segment of its dispensation. On the segment of collecting of water, inverse tendency was observed. The number of nozzles through which water became to be dispensed increased with the increase in  Q tr .

Influence of transit water flow rate on its dispensation and on inflow through nozzles in pressure pipeline under action of external pressure