Ball valve seat ring construction

Details Ball valve seat ring construction Ball valve seat ring construction

1976-01-07

1978-01-31

Weakley, Harold W.

Fluid handling

With cleaner, lubrication added to fluid or liquid sealing...

Liquid supplied at valve interface

251174, 251360, 267152, 267166, F16K 522

Patent

active

040710416

ABSTRACT:
A spherical plug valve has an annular seat pocket in its body around a flow passageway. A seat ring is positioned in the seat pocket and includes inner and outer annular concentric seat members with a resilient seal ring secured between the concentric seat members. The concentric seat members are secured together by rivets after the seal ring is positioned therebetween. A separate resilient seat urging member in the seat pocket behind the seat ring urges the seal into engagement with the adjacent face of the spherical valve and includes a metal spring encapsulated in an elastomeric material.

REFERENCES:
patent: 2247543 (1941-07-01), Bernstein
patent: 2628060 (1953-02-01), Parker
patent: 3335999 (1967-08-01), Lowrey
patent: 3416558 (1968-12-01), Works
patent: 3416783 (1968-12-01), Tondato
patent: 3580541 (1971-05-01), Bouhot
patent: 3732885 (1973-05-01), Allen
patent: 3752178 (1973-08-01), Grove

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