HYDRAULIC VALVE WITH ADJUSTABLE LEAK-TIGHTNESS Russian patent published in 2014 - IPC F16K1/20 F16K1/22 F16K27/06 

FIELD: machine building.

SUBSTANCE: group of inventions relates to valve engineering and is intended for hydraulic valves with characteristics of adjustable leak-tightness for fluid media flow control in process control applications. The hydraulic valve comprises the valve body. The valve body consists of the first opening and second opening. The first opening includes the mounting surface with the seat of fluid medium control element. The named control element is, at least, partially located within the valve body. The second opening is intended for insertion of the end part of valve cap assembly and has the size ensuring the presence of clearance between the named end part and the valve body. This clearance allows to adjust the orientation of the valve cap assembly with reference to the valve body along the route of fluid medium flow through the valve body and to adjust the orientation of the named end part and fluid medium flow control element within the second opening of the valve body with reference to the named mounting surface. Design version of the hydraulic valve is available.

EFFECT: group of inventions is aimed at the improvement of leak-tightness at the expense of re-adjustment of orientation of valve elements with reference to the seat during valve opening and closing.

19 cl, 5 dwg