Safety relief valve soft seat
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United States of America Patent
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-
May 8, 1984
Grant Date -
N/A
app pub date -
Mar 8, 1982
filing date -
Mar 8, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a poppet-type relief valve, including a housing having a spring guide assembly axially biasing a valve toward a seat in its inlet passageway, a soft valve seat member is coaxially disposed in the inlet passageway. The soft seat member includes a rigid surface limiting movement of the spring urged valve toward the inlet passageway and further includes a resilient ring seal positioned adjacent the rigid surface in a manner to be cushion contacted by and form a bubble tight seal with the spring urged valve before the valve contacts the suface.
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