Unitized seal impeller thrust system

A pump assembly using a unitized seal, impeller, and thrust system, said assembly including:

• a pump housing;
• a pump cover secured to said pump housing;
• a unitized seal, impeller, thrust system secured within said pump housing, said impeller unit having a tubular neck portion, said tubular neck portion having a first and second flat surface, said first and second flat surfaces are opposite each other, said unitization of said seal, impeller and thrust system allows for preload testing or leak testing before assembly of said pump;
• and
• a motor, said motor having a drive shaft with a first and second flat surface, said motor shaft slidingly engages with said flat surfaces of said impeller unit.

A pump assembly using a unitized seal, impeller, and thrust system, said assembly including:

• a pump housing;
• a pump cover secured to said pump housing;
• a unitized seal, impeller, thrust system secured within said pump housing, said impeller unit having a tubular neck portion, said tubular neck portion having a first and second flat surface, said first and second flat surfaces are opposite each other, said unitized system having a thrust washer with an angular corner on a rear surface and a retainer ring having a protruding torus, said unitized seal, impeller and thrust system having mating surfaces protected from contamination and damage prior to and during installation into said pump housing;
• and
• an electric motor, said motor having a drive shaft with a first and second flat surface, said motor shaft slidingly engages with said flat surfaces of said impeller unit.

A unitized water pump seal comprising:

• an impeller unit having a tubular neck portion, said neck portion having at least one flat surface;
• a seal head assembly attached to said impeller unit;
• a seal seat assembly mating with said seal head assembly;
• a retainer ring secured in said recess to assemble said seal head assembly and said seal seat assembly on said neck portion and facilitate leak testing of said unitized impeller, seal head assembly, and seal seat assembly prior to final assembly in an application, said retainer ring having a torus portion;
• and
• a thrust washer engaging said seal head assembly, said thrust washer having a conforming corner to interact with said torus portion on said retainer.