Preventing cavitation starts in the planning phases of a system. NPSH calculations can help make sure a system never has the opportunity to experience cavitation. Pumps all have a set amount of NPSH required (NPSHr), so the system must always have a level of NPSH available (NPSHa) that exc...
Net Positive Suction Head (NPSH) in centrifugal and positive displacement pumps For example, if you know the flow rate your application requires, you find the gallons per minute (or hour) rate along the bottom horizontal line of the curve and then draw a line up to the head/PSI you requir...
Cavitation in pumps is caused by excessively low pressure at the pump inlet. A blockage or restriction such as a clogged filter or part-closed valve mounted on the inlet to the pump can cause it. It can also happen when the pump has to source its water supply from a sump ins...
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