Bypass valve with flapper valve elements for a water treatment apparatus
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United States of America Patent
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Aug 4, 2009
Grant Date -
Aug 9, 2007
app pub date -
Feb 8, 2006
filing date -
Feb 8, 2006
priority date (Note) -
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Abstract
A bypass valve has a body with an inlet for receiving untreated water, an untreated water outlet for connection to a water treatment apparatus, a treated water inlet and an outlet through which treated water flows. The body includes a first valve seat between the inlet and the outlet, a second valve seat between the treated water inlet and the outlet, and a third valve seat in a flow path between the inlet and the outlet. A set of first, second and third flapper valve elements selectively engage and disengage the first, second and third valve seats respectively. The three flapper valve elements are preferably connected to a common manually operable actuator which can be latched to hold the valve elements in different functional positions.
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