Valve assembly and seat

Details Valve assembly and seat Valve assembly and seat

1982-01-27

1984-09-18

Schwadron, Martin P.

Valves and valve actuation

Reciprocating valve

Gate

251328, 251333, 251363, F16K 302

Patent

active

044719434

ABSTRACT:
A gate valve and seat 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. A valve seat is mounted in the valve body for limited axial floating movement with respect to the valve body, the seat comprising a seat body having a generally axially facing contact face for engagement with one side of the valve element. The contact face has an annular groove therein intermediate its radially inner and outer extremities, and the seat body further has at least one vent communicating with the annular groove and extending outwardly therefrom to the radially outer extremity of the seat body.

REFERENCES:
patent: 3245429 (1966-04-01), Bacino et al.
patent: 3347261 (1967-10-01), Yancey
patent: 3348567 (1967-10-01), Volpin
patent: 3349789 (1967-10-01), Crain et al.
patent: 3696831 (1972-10-01), Fowler et al.
patent: 4376526 (1983-03-01), Freeman

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