Self-cleaning slurry metering valve

Details Self-cleaning slurry metering valve Self-cleaning slurry metering valve

1993-03-18

1994-10-25

Walton, George L.

Fluid handling

Processes

With control of flow by a condition or characteristic of a...

7386303, 7386386, 134116C, 137 15, 137238, 137245, 137486, 1374875, 222149, 251122, 25112904, 251205, F16K 3104, F17D 301

Patent

active

053579950

ABSTRACT:
A valve for metering a slurry includes a primary flow path for directing a continual flow of slurry through the valve, a valve stem which extends through the primary flow path and engages a passage in a valve seat for metering a portion of slurry passing through the primary flow path out through a second outlet in the valve. A portion of the valve stem which engages the valve seat passage is cut-away and when placed in communication with the primary flow path allows the flushing of accumulated solids through the valve seat passage to avoid persistent plugging of the valve.

REFERENCES:
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patent: 1911905 (1993-05-01), Knowlton et al.
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patent: 2881783 (1959-04-01), Andrews
patent: 3240230 (1966-03-01), Callahan, Jr. et al.
patent: 3282113 (1966-11-01), Sachnik
patent: 4026324 (1977-05-01), King et al.
patent: 4195654 (1980-04-01), Coley
patent: 4281935 (1981-08-01), Cramer et al.
patent: 4911200 (1990-03-01), Ben-Arie

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