Mechanical seal for pumps and method of fabricating same

Details Mechanical seal for pumps and method of fabricating same Mechanical seal for pumps and method of fabricating same

F - Mech Eng,Light,Heat,Weapons

04

D

26/161, 277/20

F04D 29/12 (2006.01)

Patent

CA 1325648

IMPROVED MECHANICAL SEAL FOR PUMPS AND METHOD OF FABRICATING SAME ABSTRACT: A mechanical seal assembly (12) for use with centrif- ugal pumps (10) including at least one unitized elastomer assembly for urging the seal faces (36,38) of a pair of seal rings into sealing engagement with each other. The unitized elastomer assembly serves as a seal ring mounting arrangement and includes a spaced pair of metallic rings (54,56) which are chemically bonded to an annular elastomer body (48) disposed therebetween and whose cross section between the rings is loaded in shear when the elastomer assembly is operatively arranged in the pump. A mechanical seal (64) is established between at least one of said rings and the elastomer body for protecting the chemical bond therebetween against attack by corrosive pump product. Also disclosed is a method of fabricating the unitized elastomer assembly.

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