Cartridge Filters
Surface Filtration Product Guide
What is Surface Filtration?
As its name implies, a surface filter has a very thin cross-section
and retains oversized particles on the upstream side of the media.
Surface filters are particularly suited to removing rigid, irregularly-shaped
particles. These particles accumulate with time and form a "cake"
across the filter pores, but still allow flow through the filter.
Descriptions of depth filters and surface filters usually
emphasise the extreme characteristics of each. In reality, the
filtration process is somewhere on a scale between the two, leaning
predominantly to one end or the other. Much of the pleated media
used in cartridge filters has some depth characteristics aiding
particle retention.
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