Advanced Depth Filtration for Industrial & Sanitary Applications
For industries requiring superior clarification, polish filtration, and high-solids retention, the ErtelAlsop Pak® Lenticular Filter represents the gold standard in depth filtration technology. As a robust solution for solid-liquid separation, these modules combine the high capacity of depth filter sheets with the ease of use of a cartridge format.
At Purecowater, we supply ErtelAlsop’s complete line of lenticular cartridges, designed to tackle complex filtration challenges in pharmaceuticals, food and beverage, chemicals, and botanical extraction.
What is a Lenticular Filter?
The ErtelAlsop Pak® consists of depth filter media sheets comprised of cellulose fibers and inorganic filter aids (such as Diatomaceous Earth or Perlite). These sheets are sealed into individual cells and stacked on a central polypropylene core. The resulting structure resembles a stack of double convex lenses—hence the name “lenticular.”
Unlike surface filters that entrap particles only on the outer layer, these depth filters utilize a complex matrix of fibers to trap particles throughout the thickness of the media. Additionally, the media is treated to exhibit a positive Zeta Potential, allowing it to electrokinetically attract and hold negatively charged particles (like haze, colloids, and lipids) that are smaller than the physical pore size.
Key Features and Benefits
- Scalability: Available in 12-inch and 16-inch diameters with varying cell counts to fit standard housings.
- High Solids Loading: The depth media structure allows for significant contaminant holding capacity compared to pleated cartridges.
- Leak-Free Design: Patented edge-sealing technology ensures no bypass, critical for sterilizing-grade or high-purity applications.
- User Safety: The enclosed module format limits operator exposure to process fluids and eliminates the leakage often associated with traditional plate and frame presses.
- Versatile Media Options: Available in various media grades including MicroMedia® (cellulose/DE/resin) and AlphaMedia® (pure cellulose).
Technical Specifications
Understanding the configurations of the ErtelAlsop Pak® ensures compatibility with your existing filter housings and process requirements.
| Specification | Details |
|---|---|
| Diameters Available | 12 inch (30.5 cm) & 16 inch (40.6 cm) |
| Micron Ratings | 0.25 µm to 15 µm (Nominal) |
| End Cap Configurations | Flat Gasket, Double O-Ring |
| Number of Cells | 5, 9, 12, 16, or 18 stacked cells per module |
| Core Material | Polypropylene |
| Gasket Material | EPDM (Standard), others available upon request |
| Filtration Mechanism | Mechanical sieving & Electrokinetic adsorption (Zeta Potential) |
Common Applications
The versatility of the Pak® Lenticular Filter makes it a preferred choice across several high-demand sectors:
| Pharma & Biotech | Clarification of fermentation broths, removal of cell debris, and protection of downstream membrane filters. |
| Food & Beverage | Haze removal in distilled spirits, polishing of syrups and flavorings, and microbial reduction in beverages. |
| Botanical Extraction | Winterization and Dewaxing: Excellent for removing waxes, lipids, and suspended solids from ethanol extracts at high flow rates. |
| Chemicals & Utilities | Removal of carbon fines, catalyst recovery, and general particulate removal in process water. |
Why Choose Purecowater?
As a distributor for premier filtration brands like ErtelAlsop, Veolia, and Fil-trek, Purecowater provides more than just part numbers. We offer technical expertise to help you select the correct micron rating, media formulation, and housing configuration for your specific stream. Whether you are upgrading from a filter press to a lenticular housing or designing a new skid, our team supports your process optimization.
Need help selecting the right lenticular module for your application?