Wireline safety valve with split ball

Details Wireline safety valve with split ball Wireline safety valve with split ball

F - Mech Eng,Light,Heat,Weapons

16

K

166/44

F16K 11/16 (2006.01)

Patent

CA 1046934

ABSTRACT OF THE DISCLOSURE The specification describes a sub-surface shutoff valve for wells adapted to be supported into well fluid production pipe. The valve includes an elongated tubular body, an elongated inner-tubular assembly including piston sleeve means, a ball valve having a flow passage there- through, support means for the ball valve carried by the piston sleeve means, cooperable means on the ball valve and body for rotating the ball valve between first and second positions at which the flow passage is open and closed respectively, in response to longitudinal movement of the piston sleeve means, and the ball valve in opposite directions in the tubular body, and shifting means for moving the piston sleeve means and ball valve upwardly. The piston sleeve means and the tubular body define a chamber for control fluid pressure. The support means includes a pair of pivot arms at opposite sides of the ball and has means pivotally supporting the ball. The pivot arms are initially disassembled from the piston sleeve means. The valve also includes means for connecting the pivot arms to the piston sleeve means.

302503

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