Fluid handling – Systems – Multiple inlet with single outlet
Patent
1996-06-28
1997-08-05
Ferensic, Denise L.
Fluid handling
Systems
Multiple inlet with single outlet
13762511, 13762541, E03B 500
Patent
active
056532610
ABSTRACT:
An improved selector valve includes a sealing disc with a sealing face biased against an opposed sealing face of a port plate. The sealing disc has a channel located in the sealing face which communicates with an outlet port and a single selected inlet port on the port plate while simultaneously sealing off all other inlet ports. A venturi eductor has a suction passage sealed directly to the port plate outlet for connecting the venturi directly to a selected inlet port. A connection bridge spans a tolerance gap between the port plate to the eductor. The flow path of the fluid through the selector valve has been streamlined to eliminate stagnation points and minimize turbulent flow of the fluid. As a result, the dilution rate of the chemical and water being dispensed upon actuation of the valve is improved and purging of the selector valve is eliminated because the amount of residual chemical remaining in the selector valve is minimized. Moreover, the material selection of the sealing disc enables a wider temperature range of operation for the selector valve without thermal expansion or contraction which may detrimentally effect the seals between the adjacent proponents of the selector valve.
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Dalhart Mark D.
Gessner, Jr. Ralph F.
Farid Ramyar M.
Ferensic Denise L.
Hydro Systems Company
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