Valves and valve actuation – Valve – Materials
Patent
1981-11-27
1985-01-01
Chambers, A. Michael
Valves and valve actuation
Valve
Materials
251306, F16K 122
Patent
active
044913001
ABSTRACT:
A valve including a cast or nodular iron body and a cast or nodular iron valve member having sealing surfaces which seal the fluid passage in the closed position of the valve member. At least one of the sealing surfaces in the closed position is formed by a bonded powder metal layer having high wear and corrosion resistant properties.
REFERENCES:
patent: 1649398 (1927-11-01), Fry
patent: 1824168 (1931-09-01), Orton
patent: 2396552 (1946-03-01), Cape
patent: 3325142 (1967-06-01), Thompson
patent: 3756560 (1973-09-01), Siepmann
patent: 3994319 (1976-11-01), Airhart
Barker Ronald E.
Wilson A. Kenneth
Amsted Industries Incorporated
Bouton Charles E.
Chambers A. Michael
Kostka Fred P.
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