A pump supplies energy to the flow of a fluid by increasing its load. It is a necessary component for any pipe installation and its choice must be judicious to be adapted to the network to be supplied. The MP79CR bench, designed to operate in a closed circuit, is a complete experimental means for studying the performance and characteristics of pumps. It allows the study of four pumps of different designs. With its feed tray, it is hydraulically autonomous and requires only a power supply. The speed of the pumps is regulated by an electronic variator with display of the speed and the power consumed. Complete instrumentation with manometers and flowmeters makes it possible to determine the hydraulic power and plot the characteristic curves of each of the pumps :