ADJUSTMENT VALVE WITH A VALVE CARTRIDGE FOR CONTROLLING COUNTER-PRESSURE Russian patent published in 2016 - IPC F16K17/06 F16K17/08 

FIELD: control equipment.

SUBSTANCE: group of inventions is related to the scope of automatic adjustment and is intended for counter-pressure adjustment with a valve cartridge. Control valve for pressure adjustment contains valve body, with inlet for fluid medium, the outlet hole for fluid medium, the central opening, body cover, loading spring functionally connected to the membrane. and a chamber, which is hydraulically connected to the inlet for fluid medium. Valve cartridge contains a body, having the size sufficient to its placement in the central hole. Body contains the first part, the second part, valve and flow channel. Valve seat is located in the body. Valve stem can be displaced between the open position, which provides the flow and closed position, in which leakage of fluid medium is present. Valve stem interacts with the valve guide. Spring shifts the valve stem to the open position. Holding unit is located near the first part of housing and interacts with part of the valve rod to hold the said valve stem in the body. There is a version of a regulating valve and assembly method of such valves.

EFFECT: group of inventions is aimed at improving operating reliability of an adjustment valve.

20 cl, 5 dwg