Valve device
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United States of America Patent
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Issued Date -
Dec 7, 2006
app pub date -
Jul 26, 2004
filing date -
Aug 26, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A valve device is provided, by which a reverse flow can be avoided without being restricted by pipe arrangement and without bending a primary piping, thereby preventing a defective operation due to a dynamic pressure from occurring. An inlet side inner passage includes a bent part (formed with an inlet side lateral inner passage 21 and the inlet side longitudinal inner passage 22) in a valve housing 11, that is, the inner passage formed in the valve housing 11 takes charge of such a bent part required in a primary piping to avoid a reverse flow.
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