Introduction to ErtelAlsop Pak® Lenticular Filters
In the world of industrial filtration, precision and efficiency are paramount. ErtelAlsop Pak® Lenticular Filters, also known as depth filter modules, represent a significant evolution from traditional plate and frame filtration methods. Designed to provide a totally enclosed, leak-free environment, these cartridges offer high solids loading capacity and superior particle retention, making them a top choice for industries ranging from pharmaceuticals to food and beverage.
At Purecowater, we understand the complexities of solid and liquid filtration. As a distributor for top-tier filtration solutions, we are proud to offer ErtelAlsop’s line of lenticular technology to help optimize your process streams.
How Lenticular Technology Works
The “lens-shaped” or lenticular design is what sets these filters apart. A Pak® cartridge is assembled from varying numbers of stacked filter cells (typically 5 to 18 cells). Each cell is constructed from a pair of distinct depth filter media sheets (such as MicroMedia® or AlphaMedia®) bonded at the edges using a patented process.
This structure creates a complex matrix of fibers and particles that traps contaminants not just on the surface, but throughout the depth of the media. The result is a highly efficient filter capable of removing nominal particles ranging from 0.25 to 15 microns while handling high flow rates.
Key Advantages
- Enclosed System: Unlike open plate and frame presses, lenticular housings are sealed, preventing leakage and protecting product purity.
- Rapid Change-Out: The modular “lock and load” design allows for quick cartridge replacement, significantly reducing downtime and labor costs.
- Scalability: Available in 12-inch and 16-inch diameters with various cell counts to scale from pilot to production.
- Versatility: Compatible with various media types (Cellulose, DE, Perlite, Carbon) to suit specific chemical compatibility needs.
Product Specifications
Get a clearer picture of the technical capabilities of the ErtelAlsop Pak® series below.
| Feature | Specification |
|---|---|
| Diameters | 12 inch (30.5 cm) & 16 inch (40.6 cm) |
| Micron Ratings | 0.25 µm to 15 µm (Nominal) |
| Number of Cells | 5 to 18 stacked cells per module |
| End Cap Configurations | Flat Gasket, Double O-Ring |
| Core Material | Polypropylene |
| Gasket Material | EPDM (Standard), silicone, Viton, etc. |
Media Variations & Applications
ErtelAlsop offers distinct media formulations to target specific filtration challenges. Choosing the right media is critical for performance.
| Series Media | Composition | Best Used For |
|---|---|---|
| Zeta-Pak® (MicroMedia®) | Cellulose, Diatomaceous Earth (DE) / Perlite, Wet Strength Resin | Haze removal, polishing, biological reduction in beverages and biopharma. High zeta potential for catching ultrafine particles. |
| Disc-Pak® (AlphaMedia®) | 100% Cellulose (No DE, No Perlite) | Applications sensitive to inorganic extractables. Ideal for dielectric oils, fragrances, and syrups where stripping active ingredients is a concern. |
| MicroClear® | Activated Carbon impregnated media | Color correction, odor removal, and decolorization without the mess of loose carbon powder. |
Common Industry Use Cases
- Pharmaceuticals: Clarification of cell cultures, API filtration, and removal of lipid hazes.
- Food & Beverage: Filtration of distilled spirits, wines, syrups, and botanical extracts (removing waxes and lipids).
- Chemicals: Polishing of process fluids, silicone oils, and inks.
- Cosmetics: Purification of perfumes and essential oils.
- Utilities: Dielectric oil filtration for transformers.
Why Upgrade from Plate and Frame?
Many facilities still utilize traditional plate and frame filters. While effective, they often suffer from edge leakage, labor-intensive cleaning, and exposure to the environment. Switching to a Lenticular Pak® Housing and cartridge system modernizes the process.
The translation is seamless: existing specifications for plate and frame media can be directly converted to the lenticular format, ensuring product consistency while gaining the operational benefits of an enclosed, hygienic housing.
Need Assistance with Sizing or Selection?
Whether you require the high absorption of Zeta-Pak® or the purity of AlphaMedia®, Purecowater can help you navigate the specifications to find the perfect match for your skid or housing.
Contact us today to discuss your filtration challenges.
References:
ertelalsop.com
store.clearsolutionscorp.com
clearsolutionscorp.com