Impeller with removable and replaceable vanes for centrifugal pump

An impeller and expleller, comprising:

• a. a single plate having a first surface, a second surface and a perimeter edge disposed between the first and second surfaces;
• b. an aperture at the center of the plate extending through the plate and configured to receive a shaft for rotating the impeller;
• c. a plurality of slots extending through the plate between the first and second surfaces;
• and
• d. a plurality of removeable vanes, wherein at least one vane extends through a plurality of slots when secured to the first plate and extends axially outwardly from the first surface to form the impeller and from the second surface to form the expeller.

A pump impeller, comprising:

• a. a plate having a first surface, a second surface and a perimeter edge disposed between the first and second surfaces;
• b. an aperture at the center of the plate extending through the plate and configured to receive a shaft for rotating the impeller, wherein the shaft defines an axial direction;
• c. a plurality of slots extending through the plate between the first and second surfaces, the slots extending from a first position proximate the aperture to a second position proximate the perimeter edge;
• d. a plurality of vanes, wherein the vanes extend in an axial direction away from the first surface, wherein each vanes comprises an axially inner edge and at least one cutout is disposed proximate the axially inner edge, wherein each vane extends through at least a single slot when secured to the plate and extends axially outwardly from the first surface to form an impeller and wherein the at least one cutout comprises an axially extending channel configured to allow repositioning of each vane relative to the plate in the axial direction while the plate is rotating.

A centrifugal pump, comprising:

• a. a casing defining an interior chamber;
• b. a shaft having a first end and a second end and defining an axial direction along its length, the second end extending into the chamber;
• c. an impeller comprising:
• i. a single plate having a first surface, a second surface and a perimeter edge disposed between the first and second surfaces, an aperture at the center of the plate extending through the plate and configured to receive the shaft;
• ii. a plurality of slots extending through the plate between the first and second surfaces;
• and
• iii. a plurality of removable vanes, wherein each vane comprises a body having a radial inner end and a radial outer end spaced from the radial inner end and defining the radial length of the body, wherein a portion of each vane is positioned within at least one slot and each vane is removably secured within the at least one slot, wherein the portion of each vane positioned within the at least one slot comprises a majority of the radial length of each vane, wherein each vane extends axially away from the first surface of the plate and away from the second surface of the plate to form an expeller.