Valve sealing device

Details Valve sealing device Valve sealing device

1979-06-11

1981-03-31

Weakley, Harold W.

Valves and valve actuation

With means to increase head and seat contact pressure

Seat pressed to valve

251174, 251306, 251315, F16K 2500

Patent

active

042589010

ABSTRACT:
A sealing device for a valve which includes a valve body having a fluid passage and an inner valve for opening or closing said fluid passage, said sealing device comprising a seat packing disposed in a peripheral groove formed in the valve body and partly projecting therefrom into the fluid passage, said seat packing being so constructed that the durability and the fluid shut-off performance are promoted by the combined effect of the fluid pressure in the fluid passage acting against said seat packing and the elastic force of a metallic annular elastic member associated with said seat packing.

REFERENCES:
patent: 3642248 (1972-02-01), Benware
patent: 3734457 (1973-05-01), Roos
patent: 4061307 (1977-12-01), Yoshike

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