VALVE (VERSIONS) Russian patent published in 2021 - IPC F16K25/02 F16K47/04 

FIELD: valve industry.

SUBSTANCE: invention relates to valve industry, specifically to valves intended for multiple actuation. In the disclosed valve consisting of a housing with an internal groove, a housing seat, inlet and outlet branch pipes, as well as a gate, a seal, a cartridge and a filter element, an elastic element is installed in the inner groove, a clamping element and a bushing with a seat and a hole, at that on the external and internal diameters of the bushing with the seat the sealing elements are made, and in the cage the internal channel is made. Inner groove is communicated via inlet with inlet branch pipe. Channel in the cage is made so that when the cage is in contact with the bushing with the saddle, the inlet and outlet branch pipes are communicated via the gap between the seal and the casing seat and the cage inner channel. Filter element is installed in inner channel made in cartridge. Elastic element is made in form of wave spring.

EFFECT: invention provides damped closing of the gate and reduces clogging of its sealing surfaces with foreign particles, allows reducing leakage through the gate seal, increasing its service life.

8 cl, 6 dwg