Valves and valve actuation – With correlated flow path – With mounting or support
Patent
1976-05-06
1977-10-18
Weakley, Harold W.
Valves and valve actuation
With correlated flow path
With mounting or support
251172, 251267, F16K 3105
Patent
active
040542610
ABSTRACT:
A guillotine-type valve in which the plate thereof is sealed around all edges relative to the housing in which it operates, said seals being pressure assisted. Adjacent the periphery of the plate, including its upper and lower edges, are curved, flexible strips of sealing material which contact the opposite face surfaces of the plate near the edges to form the seal. Surrounding such seals is a chamber and means is provided to maintain such chamber under pressure greater than the pressure of the fluid being controlled by the valve.
REFERENCES:
patent: 3371493 (1968-03-01), Woolley
patent: 3504883 (1970-04-01), Beck
patent: 3734458 (1973-05-01), Tricini
Gilmore Thomas F.
Hughey John E.
Carter Hugh P.
Weakley Harold W.
Zurn Industries, Inc.
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