A single suction pump having its suction nozzle on the opposite side of the casing from the stuffing box and having the face of the suction nozzle perpendicular to the longitudinal axis of the shaft. usually of “overhung hung impeller” type in which the impeller is mounted on the end of a shaft which is “overhung” from its bearing supports.
End suction pumps are available as close coupled in which the impeller is mounted directly on the motor shaft or separately coupled in which the impeller is mounted on a separate pump shaft supported by its own bearings.