Glossary
A
Absolute Filtration Rating
Related Words : Absorption
Definition : The diameter of the largest hard spherical particle that will pass through a filter under specified test conditions. This is an indication of the largest opening in the filter cloth
Related Content : Absolute filtration rating
Aperture
Related Words : Hole Size, Opening, Perforated Metal, Filtration
Definition : Aperture is a clear opening or hole through which a product will fall through.
H
Hole Size
Related Words : Aperture, opening
Definition : Width or diameter of a hole, can be either round, square or slotted.
I
Imperial Mesh
Related Words : Mesh count, number of holes, aperture
Definition : Number or wires counted in a row over a 25.4mm distance. This is called the mesh count.
M
Micron
Related Words : Millimetres
Definition : A micron is a unit of measure that is one thousandth of a millimetre.
N
Nominal Filter Rating
Related Words : Air flow, aperture
Definition : This is the term used to for filter rating at 98% efficiency.
O
Open Area
Related Words : Air flow, Air permeability, free space
Definition : Percentage of free area in woven wire mesh or perforated metal.
P
Perforated Metal
Definition : Perforated Metal is a key offering of Sefar Metal Mesh. Perforated Metal has many uses such as filtration, aesthetic appeal for building façades and architectural features.
Pitch
Related Words : centres to centres, staggered, in-line
Definition : This is the distance from centre to centre of wire threads or in perforated metal the distance from centre to centre of holes.
W
Warp
Related Words : Wire, thread, weave
Definition : Wire threads running down the length of the roll.
Weft
Related Words : Wire, thread, weave
Definition : Wire threads running across the width of the roll.
Wire Diameter
Related Words : Thread.
Definition : Wire thickness in millimetres or microns.
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