FIELD: machine building.
SUBSTANCE: valve cage comprises: grouped fluid medium flow channels, each having a first portion connected to the second portion, wherein the first portion narrows towards the second portion, and the second portion narrows towards the first portion, wherein the grouped fluid flow channels include a plurality of rows, wherein each of plurality of rows is oriented at first angle relative to plane perpendicular to valve cell axis so as to extend along spiral path on valve cell, and includes first fluid medium flow channel, wherein first fluid medium flow channels of adjacent rows are spaced apart in longitudinal direction by second angle relative to said plane, wherein second angle is smaller than first angle.
EFFECT: invention relates to a valve cage containing fluid medium channels configured to vary valve flow characteristics.
15 cl, 10 dwg
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