Ball and seat valve

Details Ball and seat valve Ball and seat valve

1991-06-04

1993-02-02

Nilson, Robert G.

Fluid handling

Processes

13753315, 251362, 251368, F16K 1504

Patent

active

051830680

ABSTRACT:
The present invention relates to a ball and seat valve having an improved design that increase the reliability and fracture resistance of the seat. The fracture resistance of the seat is increased by providing the seat with a beveled edge. When a force is exerted on the seat along its central axis, the beveled edge creaes a compressive component of force on the inside of the seat. The ball and seat valve is particularly useful when the seat is fabricated from a ceramic material. The ball and seat valve is useful in industries where it is subjected to a highly corrosive environment, such as the oil pumping industry.

REFERENCES:
patent: 1074191 (1913-09-01), Mixer
patent: 1642724 (1927-09-01), Fleming
patent: 1757139 (1930-05-01), Platenberg
patent: 2593520 (1952-04-01), Baker et al.
patent: 3027914 (1962-04-01), Jones
patent: 3331385 (1967-07-01), Taylor
patent: 4771803 (1988-09-01), Berchem et al.
patent: 4795133 (1989-01-01), Berchem et al.
patent: 4815704 (1989-03-01), Berchem
patent: 4832075 (1989-05-01), Dubach
Downhole Products (brochure), Coors Ceramics Company (undated).
"Specification for Subsurface Sucker Rod Pumps and Fittings", American Petroleum Institute, API Specification IIAX (Spec. IIAX), Eighth Edition, May 30, 1986.

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