Three-way poppet valve with hollow stem
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United States of America Patent
Stats
-
Apr 10, 1990
Grant Date -
N/A
app pub date -
Jul 27, 1989
filing date -
Jul 27, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A valve assembly having a single stem slidably supported within a bore formed in a one-piece valve body provided with three ports which communicate with the bore at axially spaced locations therealong. The axially centermost port functions as a load port. The valve stem has a single valve poppet mounted thereon in encircling relationship thereto, which valve poppet is axially movable between a pair of opposed valve seats formed on the valve body for controlling communication between the load port and the bore. The stem has a passageway extending axially therethrough to maintain a balanced pressure axially of the valve stem.
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