DISC SHUTTER Russian patent published in 2022 - IPC F16K1/16 F16K1/18 F16K47/02 

FIELD: valve engineering.

SUBSTANCE: invention relates to valve engineering, in particular to disc shutters used in industrial pipe fittings, and is intended for regulating and shutting off working media of liquids and gases. The disc shutter contains inlet and outlet flanges, a housing having a seat with a sealing surface, a shaft mounted in the housing by means of bearing bushings perpendicular to the axis of symmetry of its through hole with an offset relative to the specified axis. A disc is mounted on the shaft, which is fixed on the shaft from turning with dowels, a lamella is placed on the disc, the outer face of which has a conical surface, a seal, a seal cover, and a drive. The design features of the proposed disc shutter come to the fact that on the larger side surface of the disc, cut off by the shaft axis, on the side of the input flange, curved rods bent towards the input flange are placed along part of the circular arc bounded by the shaft axis, and on the smaller side surface of the disc, cut off by the shaft axis, on the side of the output flange, curved rods bent towards the output flange are installed along part of the circular arc bounded by the shaft axis.

EFFECT: preventing the occurrence of cavitation effects in the process of regulating the flow of liquid media.

1 cl, 4 dwg