Sealing device providing the upstream/downstream sealing of a va

Details Sealing device providing the upstream/downstream sealing of a va Sealing device providing the upstream/downstream sealing of a va

1985-06-27

1986-06-10

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277151, 277206R, 251306, 251314, F16J 1512, F16K 514, F16K 500

Patent

active

045939160

ABSTRACT:
A sealing device for providing the upstream/downstream sealing of a valve comprising a valving member movable inside the bore of a tubular body and comprising at its periphery a sealing surface coming to bear on a sealing packing mounted in the body at the end of the valving stroke. This sealing packing comprises a dynamic annular sealing element and a coronal metal membrane, whose outer edge portion has flat radial part applied axially against a steep side of a shoulder in the bore of the body, for providing static sealing therewith.

REFERENCES:
patent: 3233862 (1966-02-01), Marsh
patent: 4005848 (1975-02-01), Eggleston
patent: 4006883 (1977-02-01), Hilsheimer
patent: 4373543 (1983-02-01), Brown et al.

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