Valve assembly, seat and seal

Details Valve assembly, seat and seal Valve assembly, seat and seal

1983-04-27

1986-12-02

Rosenthal, Arnold

Valves and valve actuation

Reciprocating valve

Gate

251174, 251172, 251328, F16K 316

Patent

active

046259422

ABSTRACT:
A gate valve, seat, and face seal therefor, the valve including a valve body defining a longitudinal flowway and a valve element mounted in the valve body and movable transverse to the flowway between open and closed positions. The valve seat mounted in the valve body includes a seat body having an axially facing annular contact face for opposition to the valve element and an annular groove extending axially thereinto, the annular groove in turn having inner and outer side walls. The face seal comprises an annular elastomeric seal body having a base portion disposed in the annular groove and a sealing portion which, in a relaxed condition, projects axially outwardly from the annular groove. The seal body further has an annular auxiliary sealing formation extending about its outer diameter and sealing engaging the outer side wall of the annular groove.

REFERENCES:
patent: 3068887 (1962-12-01), Grove
patent: 3078865 (1963-02-01), Estes et al.
patent: 3166291 (1965-01-01), Grove
patent: 3272472 (1966-09-01), Goldman
patent: 3307826 (1967-03-01), Lowrey
patent: 3347261 (1967-10-01), Yancey
patent: 4034959 (1977-07-01), Morrison
patent: 4192483 (1980-03-01), Combes
patent: 4376526 (1983-03-01), Freeman
patent: 4471943 (1984-09-01), Nelson

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