SHUTOFF AND CONTROL GATE VALVE WITH SOFT GATE Russian patent published in 2025 - IPC F16K13/00 F16K33/00 

FIELD: pipeline fittings.

SUBSTANCE: invention relates to pipeline valves and can be used as shutoff and control valves, for closing-opening and regulating fluid flow in low-pressure pipelines. Gate valve includes a rigid cylindrical body, a cover, a union, flanges with branch pipes at the inlet and outlet, a gate made of elastic waterproof material in the form of a closed self-intersecting torus, the inner part of which is filled with liquid. Torus movement takes place along a rigid internal cylinder, having a ledge, a perforated and a blind part, wherein inner cylinder is tightly coupled with said case by webs arranged perpendicular to fluid flow in pipeline. Location of perforation on inner cylinder allows considerable reduction of its height due to location of perforation along perimeter of inner cylinder.

EFFECT: invention is aimed at reduction of the gate valve dimensions and improvement of operating reliability.

3 cl, 1 dwg