Inlet cross-section

The pump's inlet cross-section is usually deemed to be the flow cross-section of the pump suction nozzle.  If there is no suction nozzle the inlet cross-section must be defined as a suction-side flow cross-section (e.g. of a tank, a pipe) with known geodetic and hydraulic data (see NPSH). Refer to DIN EN ISO 17769-1 for examples.



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