Secondary sealing assembly for mechanical face seal

Details Secondary sealing assembly for mechanical face seal Secondary sealing assembly for mechanical face seal

1998-01-26

2000-09-19

Knight, Anthony

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277396, 277397, F16J 1534

Patent

active

061200344

ABSTRACT:
A mechanical seal for providing fluid sealing between a housing and a rotatable shaft includes a gland assembly, a secondary sealing assembly, and first and second seal rings each having a seal face. The secondary sealing assembly provides fluid sealing between the seal rings and the gland assembly. The secondary sealing assembly includes a compression member having a front surface and a rear surface, a resilient member positioned between the rear surface of the compression member and the inner surface of the gland assembly for axially biasing said compression plate, and a sealing member interposed between the front surface of the compression member and the rear surface of the first seal ring. Either the rear surface of the first seal ring or the front surface of the compression member is configured to impart an axial and a radial sealing force on said sealing member to place the sealing member into sealing engagement with the first seal ring and the inner surface of the gland assembly.

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