Flue gas shut-off valve

Details Flue gas shut-off valve Flue gas shut-off valve

1987-02-17

1988-03-15

Walton, George L.

Valves and valve actuation

Reciprocating valve

Gate

251328, 251193, F16K 300

Patent

active

047308087

ABSTRACT:
The slide valve of the present invention is adapted for use in horizontal piping runs. It comprises a valve body, an orifice plate, a sliding plate and guide means for the sliding plate. The orifice plate is located in the valve body and inclined at an angle, .alpha., selected to achieve a predetermined seating force when the sliding plate, also inclined, is in the valve body in the closed position and bearing on the orifice plate. The guide means are provided for guiding the slide plate when it is moved in and out of the valve body under conditions of use.

REFERENCES:
patent: 1720938 (1929-07-01), Veenschoten
patent: 2064567 (1936-12-01), Riley
patent: 2614792 (1952-10-01), Trefil
patent: 2835469 (1958-05-01), Rothenberger
patent: 2982513 (1961-05-01), Krummel
patent: 3170670 (1965-02-01), Johnstone
patent: 3212753 (1965-10-01), Milette
patent: 3258244 (1966-06-01), Hilton
patent: 3610574 (1971-10-01), Hartman
patent: 3945606 (1976-03-01), McDonald
patent: 4506865 (1985-03-01), Bragin et al.

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