For industries requiring rigorous solid-liquid separation, finding the balance between high filtration efficiency and ease of operation is a constant challenge. ErtelAlsop Pak® Lenticular Filters represent the evolution of depth filtration technology. Designed to replace traditional plate and frame leaks and labor-intensive change-outs, these cartridges offer a totally enclosed, sanitary, and highly effective solution for critical applications.
At Purecowater, we specialize in solving complex filtration challenges. Whether you are dealing with botanical extracts, pharmaceuticals, or industrial process fluids, the ErtelAlsop Pak® series provides the versatility and reliability needed to maintain product purity.
What are ErtelAlsop Pak® Lenticular Cartridges?
ErtelAlsop Pak® cartridges, also known as lenticular filter modules, are depth filtration units constructed from stacked filter cells. These cells are essentially pairs of depth filter sheets (using MicroMedia®, AlphaMedia®, or MicroClear® bases) sealed at the edges using a patented process. The resulting stack resembles a series of double convex lenses, giving the technology its distinctive "lenticular" name.
These modules seal inside a housing to create a leak-free, enclosed system. This design eliminates the dripping and exposure associated with open plate and frame presses, making it ideal for processing valuable or hazardous fluids.
Key Advantages
- Enclosed System: Prevents fluid loss and protects operators from exposure to process fluids.
- Rapid Change-Out: Modules can be replaced in minutes rather than hours, significantly reducing downtime compared to filter presses.
- High Solids Loading: The depth media structure traps a vast amount of particulates within the matrix, not just on the surface.
- Scalability: Available in 12-inch and 16-inch diameters with varying cell counts to match your flow rate requirements.
Media Technologies and Configurations
ErtelAlsop offers distinct media formulations to tackle specific filtration goals, from haze removal in spirits to dielectric oil purification.
| Product Series | Composition | Primary Applications |
|---|---|---|
| Zeta-Pak® | Cellulose + Diatomaceous Earth (DE) | General clarification, haze removal, botanical extracts, bio-pharmaceuticals. High zeta potential for fine particle retention. |
| Disc-Pak® | 100% Cellulose (AlphaMedia®) | Dielectric oils, transformer oils, syrups, fragrances. Used where DE or mineral contact is prohibited. |
| MicroClear® | Immobilized Activated Carbon | Color reduction, odor removal, and dechlorination without the mess of loose carbon powder. |
Technical Specifications
Understanding the fit for your existing housing or operational parameters is crucial. The Pak® cartridges are designed to fit industry-standard housings with precision.
| Micron Ratings (Nominal) | 0.25 µm to 15 µm |
| Diameters Available | 12-inch (30.5 cm) and 16-inch (40.6 cm) |
| Cell Count Configurations | Typically 5 to 18 cells per module (standard is often 16 cells for max surface area) |
| End Cap Styles | Flat Gasket (Standard) or Double O-Ring (Plug-in) |
| Gasket Materials | EPDM, Nitrile, Viton, Silicone, Teflon Encapsulated |
| Core Material | Polypropylene (Standard), Stainless Steel optional for high temp |
Target Applications
The versatility of the ErtelAlsop Pak® series makes it a staple in various high-purity sectors.
Food and Beverage
From the polishing of distilled spirits to the clarification of syrups and flavorings, lenticular filters ensure optical clarity and stability. The MicroMedia® grades are particularly effective at removing haze-causing proteins and waxes.
Pharmaceuticals & Cosmetics
For applications requiring strict validation, the pharmaceutical-grade options provide reliable microbial reduction and particulate removal. They are essential for processing perfumes, active pharmaceutical ingredients (APIs), and high-value extracts.
Industrial & Utility
The Disc-Pak® is the industry standard for insulating oil filtration in electric utilities. It effectively removes carbon, water, and particulate matter from transformer oils without removing essential oxidation inhibitors.
Why Partner with Purecowater?
Selecting the right depth filter requires navigating a complex matrix of micron ratings, media types, and chemical compatibility. As a distributor and solution provider, Purecowater assists in calculating the necessary surface area and selecting the correct media formation to optimize your throughput and filtrate quality.
We can supply standalone replacement cartridges or complete housing systems (vertical or horizontal) tailored to your facility’s footprint.
Ready to Optimize Your Filtration Process?
Whether you need to upgrade from a plate and frame press or need replacement lenticular modules for your existing housing, our team is ready to assist.