Ceramic-plate flow-control valve

Details Ceramic-plate flow-control valve Ceramic-plate flow-control valve

1993-04-09

1994-09-20

Walton, George L.

Fluid handling

With cleaner, lubrication added to fluid or liquid sealing...

1374545, 13762531, 251208, F16K 302, F16K 2500, F16K 5100

Patent

active

053480422

ABSTRACT:
A flow-control valve has a housing having a chamber into which opens a port, a ceramic valve plate fixed in the chamber over the port, formed with a throughgoing aperture aligned with the port, and having a substantially planar face, and a ceramic control plate having a substantially planar face lying flatly on the valve-plate face and formed with a throughgoing aperture. The control plate can be pivoted relative to the valve plate about an axis substantially perpendicular to and traversing the surfaces between an open position with the control-plate aperture overlapping the valve-plate aperture and a closed position with the control-plate aperture aligned axially with a portion of the valve-plate face and offset angularly from the valve-plate aperture and with the valve-plate aperture aligned axially with a portion of the control-plate face and offset angularly from the control-plate aperture. One of the faces is formed in a region offset from the respective face portion with a shallow recess open toward the other face. The recess is located such that in the open position of the valve it opens parallel to the faces into the aperture of the plate of the other face.

REFERENCES:
patent: 151401 (1874-05-01), Kilgore
patent: 4005728 (1977-02-01), Thorp
patent: 5014736 (1991-05-01), Korfgen et al.
patent: 5054521 (1991-10-01), Hendrick
patent: 5088688 (1992-02-01), Knapp
patent: 5107884 (1992-04-01), Orlandi

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