Pump curve basics. In this video we take a look at pump charts to understand the basics of how to read a pump chart. We look at basic pump curve, head pressure, flow rate, pump performance, impeller size, efficiency, npsh, multi-speed pumps, VFD's, rotational speed, voltage, frequency and phases to help you learn hvac, hvacr and mechanical engineering. Format:video mp4 #Pump #Curve #Basics