CONTROL VALVE Russian patent published in 2020 - IPC F16K1/42 F16K3/24 F16K47/04 

FIELD: reinforcement bars production.

SUBSTANCE: proposed invention relates to valve industry, in particular to control valves used in industrial pipeline fittings, and is intended for control and shutdown of fluids and gases working media. Control valve comprising housing with inlet and outlet branch pipes, cover with cover seal, plunger having a cylindrical projection at the lower end, a seat with seat seal, a plunger seal, made in the form of a chevron packet with adjusting gaskets, fixed by the tightening nut, in which the wiper is located, to side surface of cylindrical protrusion arranged on lower end of plunger, hollow cylindrical nozzle is connected, height of which is more than thickness of cylindrical protrusion, at that cylindrical nozzle surface not contacting lateral surface of cylindrical ledge has through holes arranged with annular rows while seat features annular recess the diameter and thickness of which are equal to that of hollow cylindrical head.

EFFECT: proposed design of regulating valve allows to prevent cavitation and ensures sufficient tightness in closed position.

1 cl, 3 dwg