High temperature, high pressure valve

Details High temperature, high pressure valve High temperature, high pressure valve

1980-12-01

1983-05-17

Walton, George L.

Fluid handling

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

Cleaning or steam sterilizing

60404, 91463, 134166C, 251 62, 251195, 251214, 251327, 251328, 277160, B08B 304, F16K 312, F16K 31122

Patent

active

043835465

ABSTRACT:
A gate valve having a top inlet and bottom outlet is provided with a horizontally disposed head slidable between closed and open positions. The valve body includes a seat concentric with an inlet passage and adapted to cooperate with a sealing surface on the head. An annular sleeve is provided within the inlet passage with one end of the sleeve being in contact with the sealing surface on the head. The sleeve and seat cooperate with the valve body and head to define an annular space. A means is provided to pressurize the space immediately prior to contact between the head and the seat. The head is biased to a closed position in the event of power failure. The valve is particularly designed for controlling downward flow of high temperature particulate material under high pressure.

REFERENCES:
patent: 367207 (1887-07-01), Hughes
patent: 2630293 (1953-03-01), Smith
patent: 2834571 (1958-05-01), Hollander
patent: 2974637 (1961-03-01), Holmes et al.
patent: 3133554 (1964-05-01), Joebken
patent: 3225544 (1965-12-01), Lemley
patent: 3570510 (1971-03-01), Tsutsumi
patent: 3605789 (1971-09-01), Graham
patent: 3918471 (1975-11-01), Bedner
patent: 4174728 (1979-11-01), Usnick et al.
patent: 4292992 (1981-10-01), Bhide'

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