Gate valve seat

Details Gate valve seat Gate valve seat

1996-09-25

1998-11-17

Fox, John

Valves and valve actuation

Reciprocating valve

Gate

251172, F16K 303

Patent

active

058365702

ABSTRACT:
There is provided a gate valve arrangement consisting of at least one sealing ring defining a valve seat, and having a reciprocable gate plate in sealing contact with the valve seat, which effects a pressure seal in one direction on the seat and at the same time allowing the seat to vent in the opposite direction to relieve pressure within the gate valve.

REFERENCES:
patent: 3307826 (1967-03-01), Lowrey
patent: 3356334 (1967-12-01), Scaramucci
patent: 3380708 (1968-04-01), Scaramucci
patent: 3488033 (1970-01-01), Priese
patent: 3580541 (1971-05-01), Bouhot
patent: 3834664 (1974-09-01), Atkinson
patent: 3945604 (1976-03-01), Clarkson
patent: 4072161 (1978-02-01), Schoeneweis et al.
patent: 4163544 (1979-08-01), Fowler et al.
patent: 4257447 (1981-03-01), Clarkson
patent: 4334550 (1982-06-01), Connor et al.
patent: 4765361 (1988-08-01), Clifford
patent: 4962785 (1990-10-01), Clifford

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