Sterilizable valve assembly for dispensing fluid materials and a

Details Sterilizable valve assembly for dispensing fluid materials and a Sterilizable valve assembly for dispensing fluid materials and a

1990-02-20

1990-12-25

Walton, George L.

Fluid handling

Processes

Cleaning, repairing, or assembling

134166C, 134168C, 134169C, 137240, 137241, 137613, 251122, 251331, F16K 5100, B08B 304, B08B 902

Patent

active

049795279

ABSTRACT:
A valve assembly having a diaphragm valve configured for efficient cleaning and sterilization, and a method for operating the valve assembly in a manner controlling the fluid material flow therethrough and for effecting cleaning thereof. The valve assembly includes a valve body defining inlet and outlet ports. The diaphragm valve is operably arranged between the ports. An actuator mechanism selectively positions the diaphragm valve relative to a valve seat defined by the valve body. A selectively operated clamping mechanism arranged on one side of the diaphragm valve develops a clamping force which is used to seal the diaphragm valve against an annular sealing surface area defined by the valve body. A cleaning system arranged on an opposite side of the diaphragm valve facilitates internal cleaning of the valve assembly, including the diaphragm valve and the annular sealing surface area upon release of the clamping force acting against the diaphragm valve.

REFERENCES:
patent: 2768789 (1956-10-01), Frey
patent: 2981660 (1961-04-01), Achorn, Jr. et al.
patent: 3308847 (1967-03-01), Umann
patent: 4653526 (1987-03-01), Hoiss
patent: 4720076 (1988-01-01), Hyde
patent: 4836236 (1989-06-01), Ladisch

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