A fluid flowing in a pipe is subjected to a friction force which causes a loss of energy and thus a total pressure drop. This varies according to the obstacles that the fluid encountered. We distinguish the regular pressure losses, due to friction on the walls of pipes and singular pressure losses caused by the singularities of the network (elbows, valves ...). The MP76 bench allows to highlight these different regular and singular pressure drops due to the main elements of installation piping. The transparency of the pipes and the pressure-reducing devices makes it possible to visualize the flows (laminar and turbulent regimes) by dye injection.
Designed and manufactured industrially, this bench operates in a closed circuit using a pump and a feed tank. It is completely autonomous, requiring only a power supply. It can be easily used in a workshop or classroom. A complete instrumentation is provided with the bench for the measurement of the upstream and downstream pressures of each of the elements allowing the determination of the regular and singular pressure losses, the measurement of the flow by the pressure-reducing members and the determination of the coefficient Kv of the valves.