Depth filter sheets and lenticular filter modules are widely used in industrial liquid filtration for clarification, polishing and fine particle reduction. These filtration elements use depth filtration media that retain particles throughout the internal structure of the filter material.
On this page you will find liquid filter elements designed for plate-and-frame filtration systems and closed lenticular module housings. These filtration solutions are commonly used in food processing, beverage production, pharmaceutical processes, chemical manufacturing and other industrial liquid filtration applications.
Depth filter sheets and lenticular filter modules – technical overview
Depth filtration is widely used in industrial liquid filtration processes where reliable clarification and fine particle removal are required. Unlike surface filters, depth filtration media capture particles throughout the internal structure of the filter material. This allows higher solids holding capacity and stable filtration performance under varying process conditions.
Depth filter sheets and lenticular filter modules use filtration media composed of fibrous materials and filtration aids that create a three-dimensional filtration matrix. The internal pore structure enables particles to be retained through a combination of mechanical interception, adsorption and depth entrapment.
Operating principle
During operation, liquid flows through the porous filtration media where suspended particles are retained within the depth of the filter structure. This multi-layer retention mechanism allows depth filters to capture particles smaller than the nominal pore size of the media.
Depth filter sheets are typically installed in plate-and-frame filtration systems, while lenticular filter modules integrate multiple depth filter sheets into a sealed module configuration. The module design allows filtration to take place in a closed housing, reducing handling and minimizing air exposure during filtration.
Design and configuration
- Depth filter sheets for plate-and-frame filtration systems
- Lenticular filter modules for closed housing filtration systems
- Stacked filtration media providing increased filtration surface area
- Multiple filtration grades depending on required particle retention
- Compatible with industrial filter housings and process filtration equipment
The filtration media used in depth filtration systems may contain cellulose fibers, filtration aids such as diatomaceous earth or perlite, and specialized binders that provide structural stability during filtration.
Typical applications
- Clarification of process liquids
- Removal of suspended solids and fine particles
- Polishing filtration prior to packaging or final processing
- Pre-filtration before membrane or fine filtration systems
- Filtration of beverages, food products and process liquids
- Liquid filtration in pharmaceutical, biotechnology and chemical processes
Selection parameters
- Required particle retention or micron rating
- Nominal versus absolute filtration requirements
- Flow rate and filtration surface area
- Liquid composition, viscosity and chemical compatibility
- Operating pressure and temperature conditions
- Filtration system type (plate-and-frame or module housing)
- Required service life and replacement interval
Selecting the correct depth filtration configuration typically begins with an evaluation of the process conditions. Parameters such as particle size distribution, solids concentration, flow rate and chemical compatibility determine which filtration media and filter format are most suitable for stable operation.