Filter Cartridges  Manufacturers, Traders, Suppliers

Filters act like very fine sieves that retain solids and dust from a liquid or gas stream and thus clean the corresponding media. Filter cartridges are self-contained systems that allow the required filters to be changed quickly. This allows the waste materials to be disposed of cleanly. The filter effect is based on various physical principles. This can be the sieving effect, where the particles are larger than the pores of the filter medium. To a large extent, the inertia of the particles, Brownian molecular movement, the barrier effect, thermophoresis and electrostatic charges play a role. To move the material flow, there must be a pressure difference between inlet and outlet. This is produced by generating a vacuum at the outlet (suction) or an overpressure at the inlet.Properties Filter cartridges are usually cylindrical. The filter media can be layered around a core or lie loosely as granules in the cartridge. Foam, activated carbon, paper, fleece, fabrics, metals and ceramics are used as media. Pre-filters, which are often filled with activated carbon or foam, are used for coarse impurities. The smallest particles are removed with the help of ceramic filters and osmosis. Distilled water or compressed air is used to clean the pre-filters. Water filters are equipped with a polyester or stainless steel housing to prevent corrosion. Metal parts can also be protected from rusting with a powder coating. Many connections are standardized according to DIN to allow universal use. Some cartridges can be refilled or the filter media washed. Others must be completely replaced at the end of the life.application areas The practical cartridges are used in households and in industry. Pond filters ensure clean water in ponds and aquariums. This is also required in the swimming pool and in the pool, where additional cleaning equipment simplifies filtration. Domestic waterworks should be protected against lime to prevent premature wear. Lime can considerably impair the circulation in the heating system. If you want to use the domestic water for the koi pond, special controls regarding the water quality are necessary. Coffee machines and fully automatic coffee makers benefit from integrated or upstream cleaning cartridges. Manufacturers often offer retrofit kits. Vacuum cleaners and dust extraction systems work primarily with filter media such as carbon, paper and fleece. Oil for hydraulics must be highly pure. For the cleaning of natural gas, the cartridges and connections should be absolutely tight. In the joinery, an extraction system with an adjustable holder removes wood dust right at the source. A very thorough and effective dedusting can be done with an industrial vacuum cleaner from Kärcher. If the particle size is undefined, you can work with several filter stages.