4 results about "NPSH" patented technology

In a hydraulic circuit, net positive suction head may refer to one of two quantities in the analysis of cavitation: The Available NPSH: a measure of how close the fluid at a given point is to boiling, and so to cavitation. The Required NPSH: the head value at a specific point required to keep the fluid from cavitating. NPSH is particularly relevant inside centrifugal pumps and turbines, which are parts of a hydraulic system that are most vulnerable to cavitation. If cavitation occurs, the drag coefficient of the impeller vanes will increase drastically - possibly stopping flow altogether - and prolonged exposure will damage the impeller.