SHUT-OFF AND CONTROL VALVE WITH SOFT SHUTTER Russian patent published in 2023 - IPC F16K33/00 F16K13/00 

FIELD: pipeline fittings.

SUBSTANCE: used as shut-off and control valves for closing-opening and regulating the flow of liquid in low-pressure pipelines. The valve contains a body with a cover and inlet and outlet pipes with or without flanges. There is a fitting on the lid for supplying liquid, with the help of the volume of which the soft shutter moves perpendicular to the axis of the flow of the working medium. The valve is made in the form of a closed self-intersecting torus, the inner part of which is filled with liquid. To limit changes in the shape of the valve during control modes, perforated limiters are installed in the areas where the body adjoins the nozzles, the perforation area of which is greater than or equal to the open cross-sectional area of the pipeline.

EFFECT: simplifying the design and increasing operational reliability by eliminating rubbing parts in the device and is designed for use with pipelines with a diameter of more than 200 mm.

3 cl, 1 dwg