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Filtration is performed by passing fluid through porous media or membrane structures.
Main types: • depth filtration — particle retention within the media
• surface filtration — retention on the surface
• membrane filtration — high-precision separation at micro- and submicron levels
Filter elements are available in various designs:
• cartridge filters (pleated, melt-blown, string-wound)
• membrane elements
• bag filters
• metallic and specialty filters
Materials: • polypropylene, polyester, nylon
• PTFE and membrane polymers
• activated carbon
• stainless steel
Main parameters:
• filtration rating — from micron to submicron level
• efficiency — nominal / absolute
• pressure drop (ΔP)
• dirt-holding capacity
• chemical and temperature resistance
Applications: • water treatment
• power generation
• chemical and pharmaceutical industries
• food production
• high-purity processes
👉 Proper selection of filter elements is critical for overall system performance.
