Vacuum valve for a sewage collection system
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United States of America Patent
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-
Jan 25, 1994
Issued Date -
N/A
app pub date -
Dec 7, 1992
filing date -
Jan 7, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vacuum valve comprises inlet and outlet pipes connected together to form a pipe line through which sewage flows, a valve element inclined to the pipe line and providing a selective communication between the inlet and outlet pipes, and a flexible or movable partition mounted within the valve to define a pressure chamber and connected to the valve element. The valve element is moved in an inclined manner in response to pressure differential between the pressure chamber and the interior of the outlet pipe. The outlet pipe has an axis displaced in a direction parallel to the axis of the inlet pipe and away from the valve element.
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