Centrifugal pump with integral suction valve
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United States of America Patent
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-
Apr 4, 1989
Grant Date -
N/A
app pub date -
Dec 10, 1986
filing date -
Dec 10, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved centrifugal pump is provided wherein a suction valve is integrally mounted within the impeller housing. The valve is shifted to the open position by hydraulic action and is preloaded by a spring to the closed position. Mechanical linkage is also provided to manually shift the valve between the open and closed positions.
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