AXIAL CONTROL VALVE Russian patent published in 2019 - IPC F16K1/12 F16K1/34 F16K47/04 

FIELD: construction.

SUBSTANCE: invention relates to the valve production, in particular to the through flow control valves used in industrial pipeline fittings. Axial control valve contains external and internal housings, inlet and outlet flanges, a flow divider, coaxially with which a locking member is installed, connected to a rack and pinion drive by means of a stem, and an expansion sleeve placed in the outlet flange. Locking member is a locking disk attached to the stem, which has a curved surface on the stem side, and on the opposite side, connected to a flow divider, made in the form of guide rods installed parallel to the valve axis, where conical inserts of different diameters separating in the axial direction are located, arranged with a base in the direction of the output flange. Separating conical inserts of a larger diameter have holes in the central part, and between the separating conical inserts of smaller diameter and the expansion sleeve there is an annular gap. Hollow visor is attached to the side of the inner body, which has a cylindrical surface inside and is tapered on the outside.

EFFECT: proposed valve design reduces cavitation effects and increases tightness when closed.

1 cl, 3 dwg