Lubricated split plug valve

Details Lubricated split plug valve Lubricated split plug valve

1980-12-12

1983-07-19

Walten, George L.

Fluid handling

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

Liquid supplied at valve interface

184105B, 251309, 137315, F16K 522

Patent

active

043938930

ABSTRACT:
A lubricated split plug valve includes a valve body defining a chamber with fluid ports therethrough. A valve stem is rotatably mounted in the body and engages a split cylindrical valve member. The valve member includes a cylindrical passage with first and second inlets. The valve member includes a pair of core halves defined along an oblique plane passing through the cylindrical passage. Identical grooves are fabricated on the outer peripheral surface of the core halves with portions that substantially surround one of the passage inlets defined in the particular core half. The groove also includes a continuous portion encircling the remaining outer periphery of each core half. Each groove is in fluid communication with a reservoir wherein lubricant may be introduced from a source into the groove. A piston is in each reservoir and biased under the influence of line pressure and gravity forces.

REFERENCES:
patent: 2269886 (1942-01-01), Volpin
patent: 2269887 (1942-01-01), Sharp
patent: 2269887 (1942-01-01), Sharp
patent: 2282455 (1942-05-01), Church et al.
patent: 2591031 (1952-04-01), Volpin et al.
patent: 2999510 (1961-09-01), Volpin
patent: 3414002 (1968-12-01), Volpin

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