Automatic flow control valve
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United States of America Patent
Stats
-
Sep 1, 1998
Issued Date -
N/A
app pub date -
Apr 13, 1995
filing date -
Dec 20, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pressure valve having a fluid inlet, a first chamber, a throughbore, a second chamber, a fluid outlet and a valve stem. The valve stem is mounted within a valve body and has several different diameters. A pressure condition within one or more of the chambers acts upon the valve stem to urge the stem into either an open position or a closed position, depending upon the design of the valve. The valve is particularly suitable for bypass valves, pressure regulating valves, over-pressure protection valves, lost-pressure protection valves, and other pressure-sensitive valve applications.
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