Integral media cartridges

The cartridges consisting of a single piece of filter medium are made from a perforated cylindrical core, of metal or stiff plastic, onto which the material of the filter medium is placed or formed. There are two basic types of integral media cartridges, depending upon which primary filtration mechanism is operating thin media, which work by surface filtration, followed if necessary by cake filtration on top of the surface layer and thick media, which work by depth filtration. 

Cartridges are available in a very wide range of types, and in almost every type of filter medium. However they can be broadly classed into two types, according to their construction, which can easily be distinguished, although even here there are formats that bridge this classification. The first uses an integral piece of porous... 

The metal cartridges described above are based on metal powders, but it should be noted that sintered metal cartridges are also available made from metal fibre and wire mesh. Both materials are sintered to give the necessary integrity of the medium (and, in the case of wire mesh, to maintain the precision of the apertures formed in the mesh when it was woven). Wire mesh elements are usually pleated and used for the thin media tasks described earlier, while sintered mesh cartridges operate by... 

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