Glossary

Passing wire cloth between heavy rollers to flatten the high points at the intersection of the wires, reducing the thickness of the wire cloth and giving the material a smooth surface.

Corrugations in the wires of woven wire cloth to lock the wires in place.

Two or more layers of wire cloth bonded together by sintering and usually calendered. Laminates combine the fine filtration characterisitics of a delicate weave with the strength of a coarser material.

Wire cloth with a wire diameter that is normally woven and stocked for general purpose work.

1/1000 millimeter, 0.00003937 inch; represented by the Greek letter “mu” (μ). It is the unit of measure for the particle retention of filter media.

The ratio of the area of the open spaces between the wires to the total area of a piece of wire cloth, expressed as a percentage. The formula for determining the percentage of open area for square weave wire cloth is: Percentage of open area = (size of opening X mesh)2 X 100.

The space between the adjacent parallel wires, usually expressed in decimal parts of an inch. The following formula is used to determine the width of opening a square weave wire cloth: Width of opening = (1/mesh) – wire diameter.

The ability of a filter medium to prevent the passage of solids. The size particle that will be retained by a given mesh is usually expressed in microns.

A method of corrugating wire cloth, usually used to increase filter surface area.

The wires running the width of a wire cloth roll, perpendicular to the warp wires. Sometimes referred to as “fill” or “weft”.

A heat treating process which bonds the woven wires to prevent fraying. By the nature of the process, sintering also anneals the wire cloth.

the wires running the width of a wire cloth roll, perpendicular to the warp wires. Sometimes referred to as “fill” or “weft”.

The foundation wires, running the length of a wire cloth roll.

A general term for material woven from finely drawn wire rather than thread. Available in Square or Dutch weaves, Plain or Twilled.

A number associated with industry standard sheet metal thicknesses.

Unperforated areas along the edges of the sheet or coil; are usually specified for handling purposes.

Holes in successive rows are staggered so that there is equal spacing between all holes.

Holes are in straight rows in both directions.