Valves and valve actuation – With means to increase head and seat contact pressure – Seat pressed to valve
Patent
1985-07-22
1990-03-06
Fox, John
Valves and valve actuation
With means to increase head and seat contact pressure
Seat pressed to valve
251174, F16K 122
Patent
active
049059661
ABSTRACT:
Seat structure of valves comprising a seat ring, at least one fixing member secured to a valve body and a concave provided between the body and the fixing member for setting the seat ring therein. The seat ring is provided with an inclined contact face to close a flow passage with a close contact with an inclined sealing face of a closure member and a deflective mounting plate to be sandwiched between the body and the fixing member so that the seat ring may be retained movably in response to a flow pressure in the concave both from one direction and from opposite direction of the flow passage. At the opposite side of the contact face, friction face is provided to slidably engage on a corresponding face provided at the fixing member or a substitute therefor. Said face is so inclined as to form a wedge with the inclined sealing face of the closure member.
REFERENCES:
patent: 3528448 (1970-09-01), Urban
patent: 3563510 (1971-02-01), Priese
patent: 3580541 (1971-05-01), Bouhot
patent: 4005848 (1975-02-01), Eggleston
patent: 4241895 (1980-12-01), Sternenberg
patent: 4410163 (1983-10-01), Scobie
Fox John
Okumura Engineering Works Co., Ltd.
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