CONTROL TWO-PLUNGER VALVE Russian patent published in 2024 - IPC F16K1/44 F16K47/04 F16K47/14 

FIELD: valve industry.

SUBSTANCE: invention relates to valve industry, in particular to control valves used in industrial pipeline valves, and is intended for control and shutoff of working media of liquids and gases. Control two-plunger valve comprises a housing with inlet and outlet nozzles, inside the housing there is a seat, two gates connected to a rod controlled by a drive, the rod is made stepped with sealing elements and a collar, first gate is made in the form of a stepped plunger with a sealing element and a sealing surface, the stepped plunger is located coaxially to the second gate with a sealing element, and the sealing element is installed in the lower zone of the conical part of the inner cavity of the stepped plunger. Radial guides are attached to the lower part of the second gate, and annular plates with holes are attached to the upper side surface of the stepped plunger, wherein the diameter of the annular plates increases from the lower annular plate to the upper one, and the diameter of the holes decreases from the lower annular plate to the upper one, and cylindrical diffusers are installed in the housing around the stepped plunger.

EFFECT: disclosed control two-plunger valve prevents the occurrence of cavitation.

1 cl, 6 dwg