Valve seat construction for butterfly valves

Details Valve seat construction for butterfly valves Valve seat construction for butterfly valves

1975-12-30

1979-02-27

Cline, William R.

Valves and valve actuation

Rotary valves

Butterfly

251365, 251173, F16K 1226

Patent

active

041415370

ABSTRACT:
A butterfly valve assembly having a corrosive resistant metal valve seat made of stainless steel or the like and supported in the passage of the body member of the valve assembly, the valve assembly further having a valve disc with an annular resilient sealing ring fixedly secured to the periphery thereof for cooperating with the valve seat. The valve seat is supported on the body member in such a manner that the valve seat may have limited axial movement relative to the body member when the valve disc is moved to the closed position so as to provide a compressive and/or fluid actuated seal between the valve seat and the body member whereby the butterfly valve assembly may be used in fluid distribution systems with the flow of fluid through the valve assembly being in either direction through the valve.

REFERENCES:
patent: 2965354 (1960-12-01), Grove et al.
patent: 3409269 (1968-11-01), Fawkes
patent: 3511474 (1970-05-01), Miner
patent: 3550905 (1970-12-01), Sifford
patent: 3749359 (1973-07-01), Montesi

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