Lubricated plug valve

Details Lubricated plug valve Lubricated plug valve

1985-07-08

1986-07-22

Walton, G. L.

Fluid handling

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

Liquid supplied at valve interface

13762541, 13762546, F16K 522

Patent

active

046013075

ABSTRACT:
A rotary plug valve having a smooth, cylindrical inner sealing surface between the flow passageways with a grease fitting port opening through it. When the valve plug is turned to an intermediate position in alignment with the grease fitting, a charge of grease may be introduced through the fitting to be confined by a seal ring on the plug. When the plug is thereafter turned, a quantity of grease is distributed over the inner surface to facilitate valve operation.

REFERENCES:
patent: 825706 (1906-07-01), Dyblie
patent: 1166571 (1916-01-01), Bard
patent: 1554470 (1925-09-01), Trumble
patent: 2708096 (1955-05-01), Mueller
patent: 2829688 (1958-04-01), Mueller
patent: 3072379 (1963-01-01), Hamer
patent: 3834537 (1974-09-01), Brett
patent: 3938553 (1976-02-01), Ortega
patent: 4196749 (1980-04-01), Wulf
patent: 4470429 (1984-09-01), Johnson

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