SAFETY SLIDE VALVE Russian patent published in 2024 - IPC F16K17/02 F16K47/04 

FIELD: machine building.

SUBSTANCE: invention relates to machine building, namely to high-pressure safety slide valves, and can be used in installations for hydrostatic testing of tubing and casing pipes. Safety slide valve comprises a body with supply and discharge holes, a stem mounted in its axial channel, which consists of a lower part and an upper part, an upper sealing assembly, a middle sealing assembly and a lower sealing assembly. Middle sealing assembly is made in the form of a pack of elastic radial seals of various degrees of hardness, resting against the conical split ring. Lower part of the stock has a central hole at the end and flats with holes communicating with the central hole of the stock.

EFFECT: maintaining tightness of safety slide valve during operation with low and high pressure of working medium without additional valve adjustment.

5 cl, 9 dwg