AUTOMATIC VALVE WITH INTERCHANGEABLE SEAT PLATE
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United States of America Patent
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Issued Date -
Nov 20, 2014
app pub date -
Dec 11, 2012
filing date -
Dec 12, 2011
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Abstract
An automatic valve comprising a valve seat with first gas flow passages extending there through, and a valve guard having second gas flow passages extending there through. Sealing rings are arranged between the valve guard and the valve seat. A removable seat plate is removably connected to the valve seat and is provided with apertures matching with the first gas flow passages of the valve seat. The sealing rings are resiliently biased by resilient members against the removable seat plate to close the valve. The seat plate and the rings are made of non-metallic material.
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