Control valve and trim assembly for a control valve

A trim assembly for a control valve, the trim assembly comprising:

• a top portion and a bottom portion, opposite the top portion;
• a plurality of ribs extending between the top portion and the bottom portion, wherein the plurality of ribs and one of the top portion or the bottom portion are a single, integral, unitary piece;
• and
• a plurality of arcuate lattice segments, each of the plurality of lattice segments having a plurality of passages that extend between an inner surface of the lattice segment and an outer surface of the lattice segment, and each of the plurality of lattice segments being removably secured between the top portion and the bottom portion, and separated from adjacent lattice segments by a rib of the plurality of ribs;
• wherein each of the plurality of ribs comprises a first slot on a first side of the rib and a second slot on a second side of the rib, opposite the first side;
• and
• wherein each of the plurality of lattice segments comprises a first longitudinal protrusion extending along a first side of the lattice segment and a second longitudinal protrusion extending along a second side of the lattice segment, the first and second longitudinal protrusions being radially offset from the inner surface of the lattice segment and the outer surface of the lattice segment and configured to engage the first and second slots in adjacent ribs.

A method of assembling a trim assembly for a control valve, the method comprising the steps of:

• inserting a plurality of lattice segments into a first trim section, wherein the first trim section includes a base portion and a plurality of ribs extending from the base portion, the plurality of ribs and the base portion are a single, integral, unitary piece, each of the plurality of lattice segments has a plurality of passages that extend between an inner surface of the lattice segment, and each of the plurality of lattice segments is configured to be removably inserted between two corresponding ribs of the plurality of ribs and is separated from adjacent lattice segments by a rib of the plurality of ribs;
• and
• securing a second trim section to the first trim section such that the plurality of lattice segments are removably secured between the first trim section and the second trim section;
• wherein each of the plurality of ribs comprises a first slot on a first side of the rib and a second slot on a second side of the rib, opposite the first side;
• and
• wherein each lattice segment comprises a first longitudinal protrusion extending along a first side of the lattice segment and a second longitudinal protrusion extending along a second side of the lattice segment, the first and second longitudinal protrusions being radially offset from the inner surface of the lattice segment and the outer surface of the lattice segment and configured to engage the first and second slots in adjacent ribs.