Abstract: | The paper analyses the modifications of the adjusted parameter value (the pressure p2 at the reducer outlet) depending on the values Qc of the consumed flow rate. These modifications are analyzed in three distinct areas of consumption and concrete solutions for the phenomenon to decrease in the areas I and III are suggested, the critical area in which the operating of devices performs abnormalities. In the contents of paper, the qualities, which increase or decrease the phenomena, which should arise, are also analyzed. |