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Glossary of Pump Terms: Z


    1. Z: A symbol used in pumping to indicate a pump’s hydrodynamic size.
    2. Zero percent head loss NPSHR (NPSH0): The lowest NPSHR by a pump that results in zero head loss from the performance curve when tested with enough NPSHA.
    3. Zymaxx: The trade name for a composite material containing carbon fibers. Used to make pump components such as bearings, wear ring inserts, bushings, etc.