Patent ID: 6105608
Filing Date: 2000-08-22
Classification: F16K,Y10T

Abstract:
A gas purge valve comprising:a valve housing having a valve inlet and major and minor valve outlets;a valve partition member mounted in said housing and serving to divide said housing into a first chamber communicating with said valve inlet and a second chamber communicating with said minor valve outlet;a restricted flow passage defined in said housing serving to effect communication between said first and second chambers and having a throughflow rate less than that of said minor valve outlet;a minor valve closure device comprising a seating defining a throughflow port open to the atmosphere, and a float member displaceable susceptive to a fluid for sealing said throughflow port to liquid outflow;differential pressure responsive means mounted in said partition member and displaceable in response to a pressure differential between said chambers, anda major valve outlet obturating means responsive to displacement of said differential pressure responsive means into opening said major valve outlet when said pressure differential exceeds a predetermined magnitude.