Anti-cavitation valve assembly
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United States of America Patent
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-
Mar 17, 1987
Grant Date -
N/A
app pub date -
Nov 4, 1983
filing date -
Nov 4, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The valve assembly for the control of flow of liquid from a source of liquid at high pressure to a place of use has at least one restrictive orifice adjacent a movable valve member and valve seat to provide pressure drops in series in the liquid each of which pressure drops is of a magnitude sufficient to maintain the liquid pressure above the vapor pressure of the liquid at the inlet of the valve assembly so that cavitation does not occur. The restrictive orifice varying in flow area automatically in direct proportion to the variable flow area between said movable valve member and the valve seat.
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