MICRO FLOW CONTROL STRAIGHTWAY VALVE Russian patent published in 2020 - IPC F16K1/12 F16K3/24 F16K47/14 

FIELD: pipeline fittings.

SUBSTANCE: present invention relates to valves, in particular to axial flow control valves used in industrial pipe fittings, and is intended to regulate and shut off fluids and liquids. Micro flow control straightway valve comprising external and internal housings, inlet and outlet branch pipes with flanges, flow divider made in form of perforated hollow cylinder, locking device with translational motion drive in the form of rack mechanism, holes in the flow divider are located along two congruent spirals, wherein the first spiral is located between the end of the inner housing and the outlet branch pipe, and the second one between the inner housing end and the flow divider middle, the holes in the second spiral have diameter increasing from the flow divider middle to the internal housing end.

EFFECT: proposed invention allows accurate control of liquid flow rate at its low values, and also has tightness in fully closed position and prevents cavitation.

1 cl, 1 dwg