STRAIGHT-FLOW VALVE Russian patent published in 2024 - IPC F16K1/12 F16K47/04 F16K47/16 

FIELD: valve industry.

SUBSTANCE: invention relates to valve industry, in particular, to control valves of axial flow used in industrial pipeline valves, and is intended for control and shutoff of working media of liquids and gases. Direct-flow valve comprises outer and inner housings, inlet and outlet branch pipes with flanges, flow divider, locking device of cylindrical shape, translational drive in the form of a rack-and-pinion mechanism, the inner surface of the locking device interacts with the outer surface of the flow divider, on which there are longitudinal grooves of curvilinear cross section, longitudinal axes of which are parallel to longitudinal axis of the valve, and width and depth increase to outlet branch pipe. In the outlet branch pipe there is a cylinder-conical expansion sleeve, on the inner surface of which there are axially symmetric recesses of a semi-circular cross section, the diameter of which decreases from the inner housing to the flange located on the outlet branch pipe, wherein the number of recesses of the semi-circular cross-section is greater than the number of longitudinal streams, and in the flow divider, between the longitudinal streams, channels are arranged, the length of which is greater than the length of the longitudinal streams, and the cross-sectional area increases towards the outlet branch pipe, and the locking device with its outer surface is attached to the outer housing and its length is less than the length of the flow divider.

EFFECT: proposed straight-flow valve has a relatively simple design, reduces cavitation effects and provides relatively low hydraulic resistance in the open position.

1 cl, 2 dwg