Cartridge Filter

Principle of Cartridge Filter

• It operates on the principle of surface and depth filtration, using replaceable filter cartridges to trap particles from fluids.
• They are widely used for their ease of replacement and versatility.

Construction of Cartridge Filter

1. Filter Cartridge: Cylindrical filter element made of materials like polypropylene, cellulose, or activated carbon.
2. Filter Housing: Holds the cartridge in place, often made of plastic, metal, or stainless steel.
3. Inlet/Outlet Ports: For fluid entry and exit.
4. Seals and Gaskets: Ensure no bypass of unfiltered fluid.

Working

1. The fluid enters the housing through the inlet port.
2. It flows through the filter cartridge, where particles are trapped on the surface or within the material.
3. The filtered fluid exits through the outlet port.
4. When the cartridge becomes clogged, it is replaced with a new one.

Uses

• Water purification
• Pharmaceutical industry
• Food and beverage processing
• Industrial applications

Merits

• Easy to replace filter cartridges.
• Wide range of materials and pore sizes available.
• Suitable for both fine and coarse filtration.
• Minimal downtime for maintenance.

Demerits

• Ongoing cost of cartridge replacement.
• Limited capacity before replacement is needed.
• Potential for bypass if seals are not properly maintained.

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