BALL VALVE OF AIR LINE OF RAILWAY ROLLING STOCK Russian patent published in 2023 - IPC F16K5/06 F16K5/20 B60T17/04 

FIELD: railway transport.

SUBSTANCE: invention relates to the field of railway transport. Rolling stock air line ball valve comprises a body with inlet and outlet openings, which are blocked by a ball damper with a through transitional channel installed between two sealing rings, and a manual drive. Each sealing ring is made combined in the form of a sealing seat made of filled fluoroplastic pressed against the ball valve by a corresponding toroidal elastic ring made of an organosilicon polymer. The sealing seat is made with a chamfer for interaction with a ball valve and an annular groove, repeating the shape of an elastic ring, with the formation of a cavity with the walls of the body for accommodating the elastic ring. In this case, the cross-sectional area of the cavity is not more than the cross-sectional area of the elastic ring.

EFFECT: use of the invention makes it possible to increase the reliability of the ball valve and increase the possibility of trouble-free operation throughout the entire service life of the ball valve.

7 cl, 4 dwg