Valves and valve actuation – With means to increase head and seat contact pressure – Seat pressed to valve
Patent
1994-07-26
1996-08-06
Lee, Kevin
Valves and valve actuation
With means to increase head and seat contact pressure
Seat pressed to valve
251174, F16K 316
Patent
active
055426450
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 secondary seal, each operating independently, in proper sequence, each acting in the same direction, and each being pressure actuated, with provision for relieving excess fluid pressure.
REFERENCES:
patent: 3504885 (1970-04-01), Hulsey
patent: 3776506 (1973-12-01), Fowler et al.
Lee Kevin
Ostfeld David M.
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