WEAKLY DEFORMED ASSEMBLY OF RING OF HYDRAULIC VALVE SEAT Russian patent published in 2010 - IPC F16K3/24 F16K1/42 

FIELD: machine building.

SUBSTANCE: invention refers to valves installed in flow of fluid medium to ensure pressure tight attaching of circular seat to case of valve. According to the version the weakly deformed assembly of the ring of the valve seat consists of a circular seat with rounded external surface and of a collar projecting out of at least part of this rounded surface. The collar has the first surface configured to form packing with the case of the valve, and the second surface located opposite to the first surface. The disclosed assembly also consists of a fixing device of the seat attached to the case of the valve and applying force to the second surface to retain the first surface and to form packing with the case of the valve. The fixing device of the seat is equipped with multitude of through holes. The holes facilitate attaching the said fixing device to the case of the valve by means of threaded fasteners. Also there are versions of assembly design.

EFFECT: disclosed versions of saddle fixing device ensure applying compressing force to circular seat so, that deformation of circular seat significantly decreases upon its installation inside case of valve.

29 cl, 10 dwg