Abstract: A seal adjustment system for a centrifugal pump includes a movable arm having two opposing ends, one end being positioned relative to a sealing mechanism of a pump and the other end being arranged for connection to a portion of the pump spaced from the sealing mechanism, and an adjustment mechanism having a first end positioned for attachment to a portion of a pump and a second end connected to the said other end of the movable arm in articulating engagement therewith, wherein activation of the adjustment mechanism provides movement of the movable arm to effect axial adjustment of a portion of the sealing mechanism of the pump.

Abstract: A self-monitoring adjustment system is provided for evaluating and effecting adjustment of the leakage restricting mechanism between the rotating and non-rotating elements of a rotodynamic pump to restrict leakage and to establish desired gap dimensions between the rotating and non-rotating elements of the pump. The adjustment system is structured to be self-monitoring for determination of when an adjustment of the leakage restricting mechanism is warranted by the conditions of the pump, and is structured with adjusting mechanisms that are self-adjusting responsive to the monitored conditions of the pump, though manual adjustment is also enabled.

Abstract: A self-monitoring adjustment system is provided for evaluating and effecting adjustment of the leakage restricting mechanism between the rotating and non-rotating elements of a rotodynamic pump to restrict leakage and to establish desired gap dimensions between the rotating and non-rotating elements of the pump. The adjustment system is structured to be self-monitoring for determination of when an adjustment of the leakage restricting mechanism is warranted by the conditions of the pump, and is structured with adjusting mechanisms that are self-adjusting responsive to the monitored conditions of the pump, though manual adjustment is also enabled.

Abstract: A selectively configured volute for incorporation into a centrifugal pump of the volute type is disclosed for use in processing heavy duty slurries that are characterized by containing particularly large and/or abrasive particulates that are known to degrade the pump casing or pump casing liner. The configured volute of the present invention is particularly suitable for use in connection with the use of an impeller having expelling vanes that aggressively pump out slurry from the seal face of the pump. The configured volute of the present invention provides resistance to wear when processing heavy duty slurries and provides stable flow performance and improved pump performance.

Abstract: A selectively configured volute for incorporation into a centrifugal pump of the volute type is disclosed for use in processing heavy duty slurries that are characterized by containing particularly large and/or abrasive particulates that are known to degrade the pump casing or pump casing liner. The configured volute of the present invention is particularly suitable for use in connection with the use of an impeller having expelling vanes that aggressively pump out slurry from the seal face of the pump. The configured volute of the present invention provides resistance to wear when processing heavy duty slurries and provides stable flow performance and improved pump performance.

Abstract: A liner member for a pump comprises an inner layer of a rigid abrasion resistant material and an outer layer of an elastomer material adhesively bonded to the inner layer and forming a backing therefor. One or more metal connectors are embedded in the elastomer layer for connecting the elastomer layer (and concomitantly the abrasion resistant inner layer) to a pump casing so that the elastomer layer is sandwiched between the inner layer and the pump casing.