Cartridge filters
Definition
Basic concept of cartridge filters
Cartridge filters are filtration devices that use pleated or rolled filter media contained within a tubular or cylindrical support, known as a cartridge. Its main function is to retain solid particles, impurities or contaminants present in liquids or gases, allowing the circulation of clean fluid through the system.
These filters are widely used in various industries, such as chemical, pharmaceutical, food, automotive and water treatment, due to their high efficiency, ease of maintenance and ability to handle different types of contaminants and flow rates. The modular configuration of the cartridges makes it easy to replace and maintain them without having to completely disassemble the filtration equipment.
Types of cartridge filters
Cartridge filters depending on the filter medium
The filter medium is the fundamental element that determines the retention capacity and efficiency of the cartridge filter. The most common materials include polypropylene, polyester, cellulose, fiberglass, and metallic materials. Each of these materials is selected based on the nature of the fluid to be filtered, the temperature and the required chemical resistance.
For example, polypropylene cartridges are widely used in water and chemical liquid filtration due to their resistance to corrosion and a wide range of chemicals. On the other hand, fiberglass cartridges are preferred for filtration of gases and fine particles in industrial processes where high retention efficiency is required.
In addition, there are cartridges with specific filter media such as activated carbon for the elimination of odors and organic contaminants, or membrane cartridges for sterile filtration in pharmaceutical and food applications.