Pressurized chamber seal cartridge

Details Pressurized chamber seal cartridge Pressurized chamber seal cartridge

F - Mech Eng,Light,Heat,Weapons

16

J

F16J 15/46 (2006.01) F04D 29/10 (2006.01) F16J 15/16 (2006.01) F16J 15/32 (2006.01) F16J 15/54 (2006.01)

Patent

CA 2335691

A seal cartridge for a centrifugal pump includes a housing that fits within a conventional stuffing box of they pump and has a cylindrical internal surface receiving the shaft. A pair of annular grooves are provided internally of the housing adjacent respectively opposite ends thereof. Each groove receives an O-ring that runs in contact with the sleeve when the shaft rotates. The sleeve, housing and O-rings define an annular chamber through which water is circulated to cool and lubricate the O-rings. The water is pressurized to cause the O-rings to deform and seal against the sleeve.

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