Flexible diaphragm valve

Details Flexible diaphragm valve Flexible diaphragm valve

A - Human Necessities

61

M

137/43.2

A61M 5/14 (2006.01)

Patent

CA 1149704

ABSTRACT A valve for controlling the flow of liquid has a housing divided into first and second chambers by an air and liquid impermeable, flexible diaphragm. The second chamber has an air vent through the housing arranged so as to prevent the flow of liquid therethrough, an inlet and an outlet with the outlet being normally closed to air and liquid by the diaphragm. Liquid entering through the inlet under sufficient pressure to fill the second chamber contacts and exerts pressure against substantially all of the second chamber side of the flexible diaphragm to hydrostatically lift the diaphragm away from the outlet to thereby allow liquid to exit from the valve until liquid no longer fills the second chamber, whereupon the diaphragm will return to its normal position to again close the outlet to air and liquid.

404556

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