VALVE (VERSIONS) Russian patent published in 2018 - IPC F16K3/24 F16K1/12 

FIELD: machine engineering.

SUBSTANCE: in the valve containing a body 1 with a bushing on the fins and a saddle, a body entrance 2 with a fairing 7 on the fins, a spring loaded jewel 3 with a seal 5, contacting the saddle of the body 1 and manufactured in the form of fungus, with central step-like groove, a piston 8 with a seal 9, contacting the saddle of the jewel 3, mounted on the end part of the bushing of the body 1, a lid 11, a sealing central step-like groove of the jewel 3, according to the invention in the body entrance 2 the fairing 7 is made in the form of dumb glass on internal diameter from an end face of the fairing 7 of the entrance body 2 the groove is executed, in which a combined seal 13 is set, on the jewel 3 on end face a cylinder 4 is formed, the external diameter of which interacts with the combined seal 13, while on the surface the jewel 3 on the side of the outlet cavity of the valve holes 6 are executed and the external diameter of the cylinder is less than the average diameter of the saddle of the body 1. A valve version is also provided.

EFFECT: reliability of use.

2 cl, 4 dwg