Valve system

Details Valve system Valve system

F - Mech Eng,Light,Heat,Weapons

27

B

110/24, 222/9.9

F27B 15/09 (2006.01) F16L 55/24 (2006.01)

Patent

CA 1323339

ABSTRACT VALVE SYSTEM An apparatus and process for maintaining the purity of solid/granular product and dispensing high purity granular product from a vessel. A noncontaminat- ing surface is provided by a cup, cylinder, or other structure having a surface of silicon, silicon carbide, silicon nitride, sialon, or similar materials and preferably operates as an angle of repose valve in a pressurized system to prevent contamination by undue contact of the high purity product with conventional gastight valves such as ball valves, butterfly valves, pinch valves, etc.

514570

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