Pump diagram courtesy of the Hydraulic Institute, Parsippany, NC, ww.Pumps.org. A full listing of overhung, between bearings, and vertically suspended pumps can be found in ANSI/HI 1.1-1.2 Rotodynamic Centrifugal Pumps for Nomenclature and Definitions and ANSI/HI 2.1-2.2 Rotodynamic Vertical Pumps for Nomenclature and Definitions.