Valve with improved sealing structure
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United States of America Patent
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-
Jan 1, 1985
Grant Date -
N/A
app pub date -
Nov 27, 1981
filing date -
Nov 27, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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