Isolation valve

Details Isolation valve Isolation valve

1976-11-01

1979-03-20

Weakley, Harold W.

Fluid handling

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

Liquid supplied at valve interface

137340, 137248, 251 58, 251 60, 251 90, 251228, 251298, F16K 336

Patent

active

041449029

ABSTRACT:
A gas generator, for example a blast furnace, is isolated from an exhaust gas treatment system by means of an isolation valve characterized by a valve housing which may be permanently installed in the gas delivery conduit. The housing has a laterally offset recess which receives the valve member when in the open position and the valve member may define a liquid receiving vessel in the interest of establishing a liquid barrier between the interior of the conduit and the valve seat when the valve is closed. The valve is preferably hydraulically operated and the actuator is mounted so as to minimize loading on the control shaft bearings.

REFERENCES:
patent: 674297 (1901-05-01), Kosiol
patent: 1664963 (1928-04-01), Atwell
patent: 1826941 (1931-10-01), LaMont
patent: 2999666 (1961-09-01), Sjogren
patent: 3410422 (1968-11-01), Carpentier
patent: 3521659 (1970-07-01), Seger
patent: 3589670 (1971-06-01), Armstrong
patent: 3724809 (1973-04-01), Reale
patent: 3727880 (1973-04-01), Stock
patent: 3831622 (1974-08-01), Grewer
patent: 3980270 (1976-09-01), Thomas

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