AXISYMMETRIC CONTROL VALVE Russian patent published in 2019 - IPC F16K1/12 F16K3/24 

FIELD: valve industry.

SUBSTANCE: proposed invention relates to valve industry, in particular, to direct-flow control valves used in industrial pipeline fittings, and is intended for control and shutdown of liquids and gases working media. Axisymmetric control valve comprising external and internal housings, inlet and outlet flanges, flow divider coaxially with which a turning member is installed with possibility of rotation, to the end parts of the locking member by means of flat annular plates an additional perforated cylinder of smaller diameter is coaxially attached, contacting by its inner surface with the hollow cylindrical stop connected to the expansion bushing, hollow cylindrical thrust has holes with their axes aligned with axes of holes in flow divider. Besides, expansion sleeve has conical hollow with flow swirler in zone of outlet flange.

EFFECT: proposed axial-symmetric control valve provides reliable operation, prevents cavitation effects and is reliably sealed in closed position.

1 cl, 1 dwg