Ball valve for valving abrasive fluids

Details Ball valve for valving abrasive fluids Ball valve for valving abrasive fluids

1975-06-03

1976-10-12

Schwadron, Martin P.

Fluid handling

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

Cleaning or steam sterilizing

137375, 251315, F16K 506

Patent

active

039851508

ABSTRACT:
A valve assembly for valving abrasive fluids. A ball valve member is provided for rotation in a body member, the body member having inlet and outlet bores therein. Tubular inserts of abrasion resistant material - such as boron carbide - are provided in the inlet, outlet, and a bore through the valve member. The inserts are selected so that cooperating arcuate sections formed at the ends thereof are of a length greater than or equal to the diameter of the passageways through the inserts. Also the diameter of the passageways is preferably selected so that it is much less than the diameter of the ball valve member so that during throttling the angle of deflection of the abrasive flow will be small. A purge fluid may be injected under pressure in spaces formed between the ball valve member and the body and inlet insert.

REFERENCES:
patent: 867780 (1907-10-01), Auchu
patent: 885526 (1908-04-01), Ruppel
patent: 904852 (1908-11-01), Dwyer
patent: 925809 (1909-06-01), Henss
patent: 3073336 (1963-01-01), Johnson
patent: 3825030 (1974-07-01), Kalsi

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