Cartridge Filters:

Figure described a classical multi-cartridge filter. The cartridges are cylinders and common consist of a fiber yarn wound around a perforated metal core. A liquid being filtered is forced by the yarn, that is around 1/2 inch thick, and then by the perforations in the metal core to the filter outlet, that could be at either end. A cartridge filter might involve various cartridges, a exact number depending on the liquid flow rate which must be handled.

Figure: Typical Multi-Cartridge Filter

In the filter assembly described in Figure, the cartridges are held among plates so in which the water must pass by the layer of yarn to reach the filter outlet. The category of yarn which is used depends on the application. A few of the fibers generally used involve resin-impregnated cotton-viscose, wool or cellulose, polypropylene, nylon, and glass. In a few applications which include high pressures or temperatures, porous metal cartridges are used. These cartridges are commonly made of 316 stainless steel, other than monel, inconel, and nickel are also used.