High-Efficiency Depth Filtration for Industrial Applications
ErtelAlsop Pak® Lenticular Filters represent a significant evolution in liquid filtration technology. Designed to provide a scalable, enclosed, and efficient alternative to traditional plate and frame filtration, these modules are essential for industries requiring high solids loading capacity and precise particle retention.
As a distributor for premium filtration solutions, Purecowater offers these lenticular cartridges to tackle complex solid and liquid separation challenges. Whether you are processing pharmaceuticals, food and beverages, or industrial chemicals, the Pak® design ensures product integrity and ease of operation.
What Are Lenticular Pak® Cartridges?
The Lenticular Pak® (also known as a lenticular module) consists of multiple depth filter cells stacked vertically. Available in standard 12-inch (30.5 cm) and 16-inch (40.6 cm) diameters, these modules typically contain between 5 to 18 cells per unit.
Each cell is constructed from dual discs of depth filter media—such as MicroMedia®, AlphaMedia®, or MicroClear®—edge-sealed using a patented polypropylene process. This construction creates an enclosed system that eliminates the leakage and exposure often associated with filter presses, while maintaining the same depth filtration principles.
| Feature | Benefit |
|---|---|
| Enclosed System | Prevents atmospheric exposure and product leakage; ideal for sanitary and hazardous fluids. |
| Scalable Design | Linear scalability from laboratory testing to full-scale production. |
| Rapid Change-Out | Significantly reduces downtime compared to dressing a plate and frame press. |
Product Series Breakdown
Zeta-Pak®: The Workhorse of Depth Filtration
The Zeta-Pak® series is engineered using MicroMedia® compositions, which incorporate cellulose, diatomaceous earth (DE), or perlite. This combination provides a strong zeta potential, allowing the filter to attract and hold even ultra-fine particles such as haze and colloids that are smaller than the mechanical rating of the media.
- Ideal For: Botanical extracts (wax and lipid removal), biopharmaceuticals, and cognac/whiskey polishing.
- Mechanism: Electrokinetic adsorption combined with mechanical sieving.
Disc-Pak®: 100% Cellulose for Sensitive Fluids
The Disc-Pak® series utilizes AlphaMedia®, a pure cellulose media free from DE, perlite, or synthetic binders. This is critical for applications where the impartation of minerals or the stripping of active ingredients must be avoided.
- Ideal For: Dielectric oils, perfumes, essential oils, and high-purity syrups.
- Advantage: Very low extractables and excellent chemical compatibility.
Technical Specifications
ErtelAlsop cartridges are versatile, with over 300 precision die configurations to fit various filter housings. Below are the general specifications for the standard industrial line.
| Parameter | Specification |
|---|---|
| Diameters Available | 12” (30.5 cm) and 16” (40.6 cm) |
| Micron Ratings | 0.25 µm to 15 µm (Nominal) |
| End Cap Configurations | Double O-Ring (DO) or Flat Gasket |
| Core Material | Polypropylene (Standard) |
| Gasket Materials | EPDM, Nitrile, Viton, Silicone |
| Maximum Temperature | Approx. 180°F (82°C) depending on media/gasket |
Key Applications
The versatility of the Pak® cartridges makes them suitable for a wide array of markets:
- Life Sciences & Pharma: Removal of precipitates and protection of downstream membrane filters [ertelalsop.com].
- Food & Beverage: Haze removal in distilled spirits, sugars, and gelatin.
- Botanical Extraction: Efficient removal of lipids, waxes, and plant matter in ethanol extraction processes [clearsolutionscorp.com].
- Utilities: Filtration of dielectric oils for transformers and turbines.
Get a Quote for ErtelAlsop Filters
Purecowater is your partner for advanced filtration equipment. If you need assistance selecting the correct micron rating, media type, or housing configuration for your process, our engineering team is ready to help.
Sources:
ErtelAlsop,
Clear Solutions.