c TRACO, Belgrade, Serbia d Directorate of Measures and Precious Metals, Belgrade, Serbia Original scientific paper

This paper presents an analysis of working parameters of the pressure-powered pump. Mathematical models for determining the pump filling and discharge peri-ods were developed and statistically compared to experimental results. The statisti-cal parameters of the final correlation between here presented mathematical model and experimental results are in the acceptable range. Pump characteristics are presented in the common manner: in the form of the pump head vs. capacity dia-gram. Key words: pressure-powered pump, pump working cycle, filling period, discharge period, condensate recover