VALVE Russian patent published in 2018 - IPC F16K17/19 

FIELD: technological processes.

SUBSTANCE: in a valve containing a housing with an inlet and an outlet nozzles, a bellows, a seal assembly including a slide valve and a sealing seat of the housing, a cover and a stem connected to the actuator, the slide valve is made in the form of a hollow cylinder with a guide shell in the inner cavity of which an output end of the stem is located, on which a thrust bush is rigidly fixed, hermetically connected to the end bush provided with a guide element made in the form of a cylindrical shell with a flange collar contacting with the inner surface of the housing, wherein the inner surface of the cylindrical shell is hermetically connected to the lower end of the bellows.

EFFECT: improved reliability of the valve.

7 cl, 1 dwg