Wire Mesh, Hardware Cloth, Stainless Steel Wire Mesh, copper wire mesh, brass wire mesh, bronze insect screen, wire cloth,TWP Inc.

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Mesh
Number of openings per linear inch, measured from the center of one wire to a point one inch distant

Wire Diameter
The thickness of the wire in inches.

Opening
The hole size which is the distance between two adjacent parallel wires.

Open Area Percent
The proportion of open space in a section of screen expressed as a percentage.

Absolute Filtration Rating
A measure of retention, expressed in microns, that specifies the equivalent diameter of the smallest particle from which the filter has a retention of 100%. In actual practice, most manufacturers assign absolute ratings on the basis of retention in the range from 98% - 99.999999%.

Nominal Filter Rating
A measure of retention, expressed in microns, that specifies the equivalent diameter of the smallest particle for which the filter has a retention somewhere in the range of 60-90%.

Warp Wire Diameter
The wires running the long way of the material as woven (long wires).

Shute Wire Diameter
The wires running across the width of the cloth as woven (short wires).

Micron
A unit of length in the metric system. One micron is equivalent to 0.00003937 of one inch.

Wire mesh engineering information
How to Compute Opening Size—Multiply the wire diameter by the mesh count. Subtract that figure from 1 and divide it by the mesh count.
How to Compute Open Area Percentage—For plain weave wire cloth.
For rectangular weave wire cloth.
Metric conversions. 1 kilogram = 2.205 pounds 1 square foot = 929 square centimeters 1 square meter = 10.764 square feet 1 inch = 25.4 millimeters 1 inch = 2.54 centimeters	1 micron = .00003937 inch 1 millimeter = .03937 inch 1 centimeter = .3937 inch 1 meter = 39.37 inches 1 meter = 3.28 feet

TWP Inc. is a California corporation, founded in 1969, with its principal office in northern California. It is engaged in the manufacture, distribution, and fabrication of wire mesh, hardware cloth, stainless steel wire mesh screen discs, wire cloth, stainless steel wire mesh, copper wire mesh, copper screen, welded wire meshes, RFI shielding, specialty insect screens, brass screens, hardwarecloth, screen wire, welded wire mesh fabric, wire screen and screen mesh, bronze screen, brass mesh, bronze mesh, galvanized hardware cloth, micronic mesh, sintered wire mesh laminates, diffusion bonded wire meshes, wire mesh filter discs, wire mesh slitting services.