Cooled seal cartridge

A mechanical seal cartridge comprising:

• a rotatable stub shaft adapted to be connected at one end to a rotating shaft and at the other end to a rotatable shaft, a hollow housing adapted to be connected between spaced housings and the like and disposed about said stub shaft, said housing having an opening for access to said cartridge whereby said cartridge can be replaced as a unit in said housing, end flanges disposed about said stub shaft, means releasably connecting said end flanges to said housing, each of said end flanges carrying non-rotatable sealing ring means including an axially shiftable seal ring having a radial seal face, the radial seal face of the respective seal rings being disposed in opposing axially spaced relation, rotatable sealing rings means carried by said stub shaft for rotation therewith and providing oppositely facing radial seal faces for engagement by said radial seal faces of the respective axially shiftable seal rings, and spring means interposed between said end flanges and said axially shiftable seal rings for biasing the latter towards said rotatable sealing ring means to effect said engagement of said radial seal faces.