Dual seal valve

Details Dual seal valve Dual seal valve

1995-06-07

1997-04-29

Lee, Kevin

Valves and valve actuation

With means to increase head and seat contact pressure

Seat pressed to valve

251174, F16K 316

Patent

active

056241011

ABSTRACT:
A high pressure valve is disclosed having dual, independent seat to closure member seals, the dual seal arrangement including a primary seal and a second seal, each operating independently, in proper sequence, each acting in the same direction, and each being pressure actuated, with provision for sealing fluid.

REFERENCES:
patent: 3339886 (1967-09-01), Grove
patent: 3504885 (1970-04-01), Hulsey
patent: 4068821 (1978-01-01), Morrison

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