A filter medium that holds contaminant by mechanical means.



Related Terms

DEPTH FILTER

A filter medium that retains contaminants primarily within tortuous passages.

FILTRATION

The physical or mechanical process of separating insoluble particulate matter from a fluid, such as air or liquid, by passing the fluid through a filter medium that will not allow the particulates to pass through it.

POROSITY

The ratio of pore volume to total volume of a filter medium expressed as a percent.

FATIGUED

A structural failure of the filter medium due to flexing caused by cyclic differential pressure.

BLOTTER PRESS

A plate-and-frame filter in which the filter medium is blotting paper.

PORE

A small channel or opening in a filter medium which allows passage of fluid.

SINTERED MEDIUM

A metallic or nonmetallic filter medium processed to cause diffusion bonds at all contacting points.

ADSORPTIVE FILTRATION

The attraction to, and retention of particles in, a filter medium by electrostatic forces, or by molecular attraction between the particles and the medium.

MULTIPLE CARTRIDGES

Filter medium made up of two or more filter cartridges, either fastened end to end or arranged side by side (in series or parallel flow respectively).

NONWOVEN MEDIUM

A filter medium composed of a mat of fibers.

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