BALL VALVE Russian patent published in 2018 - IPC F16K5/06 F16K15/04 F16K11/10 

FIELD: valve production.

SUBSTANCE: invention relates to pipe fittings intended to shutdown a pipeline duct, and also to allow movement of the working medium in only one direction. Ball valve includes a housing in which a spherical shut-off valve is mounted in two disks. It is connected with a drive of its rotation, is equipped with a ball and is made with a through hole. Through hole of the shut-off valve consists of three cylindrical samples arranged with their axes in one vertical plane. First sample has a bottom, is downward directed and is made from a spherical wall of the shut-off valve. Second sample is made from a bottom side of the bottom of the first sample, perpendicular to a wall of this bottom. Third sample is downward directed, made from the spherical wall of the shut-off valve and communicates with a cavity of the second sample. Chamfer is removed from an edge between a side wall of the second sample and a bottom wall of the first sample. Ball is installed in the first sample and under its own weight tightly seals its wall against a conical chamfer wall with the arrangement of a rotary drive the shut-off valve at the top of the housing. From the top of the side wall of the first sample, a threaded sample is made, into which a screw is screwed to prevent the ball from leaving the first sample.

EFFECT: design of the proposed ball valve is simplified.

1 cl, 2 dwg