Suction valve for high pressure slurry pump
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United States of America Patent
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-
Jul 27, 1993
Grant Date -
N/A
app pub date -
Apr 10, 1991
filing date -
Apr 10, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Where on the valve seating surfaces due to the high pressure pumping of abrasive slurry through an in-line valve is greatly reduced by providing first and second valve seating surfaces which are engaged, respectively by first metal and first elastomeric closure surfaces and second metal and elastomeric closure surfaces located on an annular valve closure means. Pumping efficiency is maintained by providing for high velocity sweep in an annular space between the annular valve closure means and the cylinder in which it rides.
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