Plug valve for reduced leakage

Details Plug valve for reduced leakage Plug valve for reduced leakage

1982-03-12

1985-07-30

Chambers, A. Michael

Fluid handling

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

Liquid supplied at valve interface

251175, 251214, 251309, 277 59, F16K 522

Patent

active

045315370

ABSTRACT:
A plug valve has an actuating stem which is non-integral with the valve plug. The actuating stem is axially movable with respect to the valve plug to compressingly and sealingly engage an external sealing member in response to fluid pressure. The plug wedges itself into sealing engagement in response to fluid pressure.

REFERENCES:
patent: 3703910 (1972-11-01), Smith
patent: 4116208 (1978-09-01), Smith
patent: 4135544 (1979-01-01), Macleod
patent: 4174092 (1979-11-01), Macleod
patent: 4219046 (1980-08-01), West et al.

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