Pressure regulator having an integral pilot and self-relieving mechanism
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United States of America Patent
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-
Jan 14, 2014
Grant Date -
May 12, 2011
app pub date -
Nov 5, 2010
filing date -
Nov 6, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A high flow pressure regulator valve is disclosed having an integral pilot valve. The disclosed valve includes a pressure regulating portion including inlet and outlet ports, a valve seat, valve disc and a spring for biasing the valve disc into engagement with the valve seat. The valve also includes a pilot valve portion positioned on the flow regulating portion. The pilot valve portion includes a pilot spring, a diaphragm and a pusher post. One end of the pusher post is positioned toward the diaphragm and a second end is disposed within an annulus region. The valve further includes a pressure path that enables selective fluid communication between the outlet port, the annulus, an inner chamber region disposed beneath the diaphragm, and an intermediate chamber disposed above the valve disc. Other embodiments are disclosed and claimed.
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