DISK VALVE Russian patent published in 2014 - IPC F16K3/06 F16K27/04 

FIELD: machine building.

SUBSTANCE: valve includes a housing and a cover with supply and discharge connecting pipes, a disk gate on a rotation axis with gear rim on the side surface, drive of the gate in the form of a conical gear on a shaft, sleeve seats with end and radial seals. The cover is mounted in the side bores of the housing connected to each other by semi-rings set in the cover's annular boring, with the output into the annular groove on the inner housing surface, with the fixation of such position by locking bolts. The shaft is fixed by a bracket introduced in the annular boring by the gear, in the housing boring. Installation of a shaft seal inside a thin-walled sleeve set freely in the chamber provided in the housing, ensures reliable keeping of constant contact stresses on the sealed surfaces at any temperature change. Demounting of the seal is facilitated by free removal of the sleeve from the chamber in the housing.

EFFECT: installation of sealing rings at the end and outer diameter of the cover provides for reliable isolation of the housing cavity from the environment.

4 dwg