<![CDATA[Centrifugal pumps are the most widely used fluid machines in our daily life. In operation there are many losses caused by the installation and construction of the pump itself. Many studies have been carried out to minimize these losses, including the research we did, namely in the form of modifications to the centrifugal pump inlet. This study aims to determine the effect of installing the inducer on the locknut impeller on the characteristics of a radial flow type centrifugal pump. Here what is meant by pump characteristics are head, discharge, and pump efficiency. The method used is experimental. The activities carried out in this study included: designing and assembling simple pump testing equipment, making specimens, collecting data, analyzing and discussing and concluding. In this study there were four types of tests, namely: 1) Centrifugal pump without modification (normal); 2) Pump of the 1st modification with inducer, 25 mm long; 3) Pump of the 2nd modification with inducer, length 50 mm; and 4) Pump modification 3rd with inducer, length 75 mm. Research shows that modifications can improve the characteristics of centrifugal pumps which are the object of research where there is an increase in total head (Htot), discharge (Q) and efficiency (ηp). The best characteristics were obtained from the 2nd modification pump with an inducer length of 50 mm, followed by the 3rd modification pump with an inducer length of 75 mm, the 1st modification pump with an inducer length of 25 mm and the lowest was the pump without modification (normal). Characteristics of centrifugal pumps This increase is due to modifications that minimize pre-rotation symptoms, turbulence, and flow separation. Or in other words, the modification causes an improvement in the flow pattern at the inlet of the centrifugal pump.]]>
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