Ball control valve

Details Ball control valve Ball control valve

1987-11-27

1989-11-21

Rosenthal, Arnold

Valves and valve actuation

With selective flow regulation

Rotary

251315, 251316, 251368, F16K 4704, F16K 506, F16K 510

Patent

active

048817180

ABSTRACT:
A ball valve with a port (30) through the ball (26) has a groove associated with each end of the port with each groove (32,34) extending partially around the circumference of the ball. Each groove connects with its end of the port (30) and extends away from the port in the plane of rotation of the ball. The grooves decrease in size as they extend away from the port whereby the grooves serve to control the flow area depending on the degree of rotation of the ball. Diffusers (22,24) in the inlet and outlet of the valve assure that any cavitation will occur within the diffusers which are formed of material adapted to withstand the cavitation forces.

REFERENCES:
patent: 2510514 (1950-06-01), Mueller
patent: 3354904 (1967-11-01), Federle et al.
patent: 3520513 (1970-07-01), Okerblom
patent: 3536296 (1970-10-01), Burris
patent: 3722545 (1973-03-01), Furlani
patent: 3762682 (1973-10-01), Franck
patent: 3773291 (1973-11-01), Grauer
patent: 3812882 (1974-05-01), Taylor
patent: 4131128 (1978-12-01), Gotzenberger
patent: 4212321 (1980-07-01), Hulsey
patent: 4388945 (1983-06-01), Johnson et al.

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