Cartridge Filters
Cartridge filters include the filter media and the receptacle needed to hold the media within a liquid filter. Cartridges are porous, have no moving parts, and can be refillable. Cartridges can also hold a variety of materials, including paper, nylon, carbon, poly thermoplastics, metal mesh, and an assortment of synthetic materials.
The type of filtration media chosen for a particular cartridge filter is determined by the needs of the liquid that is being filtered. The permeability of the filter media determines the size of particles whose path is blocked from filtering through the bag. The kind of filter media also determines the speed of flow of the liquid. For instance, filter media that allow for the passage of larger particles will have a faster flow rate than that of filter media that block even the smallest impurity.
Disposable cartridges come pre-filled with filter media and are only good for a specific amount of use. After their lifetime has expired, disposable cartridges are thrown away and replaced with another cartridge. Refillable cartridges can be reused and re-filled numerous times. In these cases, only the filter media is thrown away and replaced.