SCRAPER VALVE Russian patent published in 2022 - IPC F16K1/42 F16K3/24 F16K47/04 

FIELD: engineering.

SUBSTANCE: invention relates to valve engineering, in particular, to multifunctional apparatus controlling the flow of liquid media and providing a possibility of cleaning pipelines by means of scrapers. The scraper valve comprises a body with inlet and outlet branch pipes, a cover with a cover sealing, a plunger with a cylindrical protrusion at the lower end, a seat with a seat sealing. The plunger sealing is made in the form of a chevron packet with adjusting liners and secured by a packing nut wherein a wiper is placed. A hollow cylindrical attachment is attached at the side surface of the cylindrical protrusion placed at the lower end of the plunger, the height whereof is greater than the thickness of the cylindrical protrusion, and an annular cavity is made in the seat, the diameter and thickness whereof are equal to the thickness and diameter of the hollow cylindrical attachment. A scraper receiver is placed on the upper surface of the body, between the inlet branch pipe and the cover, made in the form of a hollow cylinder closed by a cover on one side, communicating with the inner cavity of the body via a channel.

EFFECT: creation of a valve operating in two modes, the first one being the flow control mode and the second being the pipeline cleaning mode.

1 cl, 3 dwg