Excess flow valve with magnet
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United States of America Patent
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-
Aug 2, 2005
Grant Date -
Apr 29, 2004
app pub date -
Oct 28, 2002
filing date -
Oct 28, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A number of improved excess flow valves are disclosed wherein pressure drop is optimized through the device to maximize efficiency while minimizing shut-off flow rates. Flow restrictions are minimized throughout the valve structure and maximized across a valve closure plate, eliminating flow restriction variations caused by orientation of the valve components. A magnet having radially opposing poles optimizes the magnet's attractive force relationship with the valve plate.
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