Advanced Depth Filtration Solutions
For industrial and sanitary processing, efficiency and reliability in filtration are paramount. Purecowater is proud to distribute ErtelAlsop Pak® Lenticular Filters, a premier solution for depth filtration. These cartridges, also known as lenticular modules, offer a robust alternative to traditional plate and frame filters, providing a totally enclosed, leak-free environment with significantly easier handling.
Whether you are in the pharmaceutical, food and beverage, or chemical industry, the Pak® Cartridges are designed to handle high solids loading while providing exceptional particle retention. ertelalsop.com
What are ErtelAlsop Pak® Lenticular Filters?
The ErtelAlsop Pak® is a modular depth filter system. It consists of stacked lenticular filter cells, where each cell is comprised of a pair of depth filter media sheets (such as MicroMedia® or AlphaMedia®). The edges are sealed using a patented process (often polypropylene) to create a self-contained unit.
The design resembles a stack of double convex lenses—hence the name “lenticular.” This configuration maximizes surface area within a compact footprint, allowing for high flow rates and high throughput.
Key Advantages over Plate & Frame Filters
- Closed System: The filters fit inside a sealed housing, preventing leakage and atmospheric exposure.
- Quick Change-Out: Modules can be replaced in minutes compared to the labor-intensive process of dressing a plate and frame press.
- Scalability: Available in 12-inch and 16-inch diameters with varying cell counts to match your batch size.
Technical Specifications
The flexibility of the Pak® system lies in its varied configurations. Below are the standard specifications available for these modules.
| Feature | Specification Details |
|---|---|
| Diameters Available | 12 inch (30.5 cm) & 16 inch (40.6 cm) |
| Micron Ratings (Nominal) | 0.25 µm to 15 µm |
| Cell Count | Typically 5 to 18 stacked cells per module |
| End Cap Configurations | Flat Gasket, Double O-Ring (e.g., for Bio-Pak®) |
| Core Material | Polypropylene |
| Gasket Materials | EPDM, Buna-N, Silicone, Viton, etc. |
Product Series and Media Options
ErtelAlsop offers diverse media formulations to target specific contaminants, from haze in spirits to particulate in pharmaceuticals.
1. Zeta-Pak® (The Workhorse)
The Zeta-Pak® incorporates wet strength cellulose fibers, filter aids (like Diatomaceous Earth), and a positive charge (zeta potential) to attract negatively charged contaminants such as bacteria and endotoxins. It is ideal for general filtration in food, beverage, and chemical applications. clearsolutionscorp.com
2. Bio-Pak® (Pharmaceutical Grade)
Designed for critical applications, the Bio-Pak® features a double O-ring connection and a polypropylene core, eliminating stainless steel straps and ensuring a sanitary fit. This reduces hold-up volume and ensures the highest integrity for high-value fluids.
3. AlphaMedia® & MicroMedia®
- AlphaMedia®: A pure cellulose media for applications where no inorganic filter aids are desired.
- MicroMedia®: Incorporates filter aids like Perlite or DE for enhanced throughput and retention.
Common Applications
The versatility of the Pak® Lenticular Filter makes it a staple in various industries:
- Life Sciences: Fractionation, sterile filtration pre-treatment.
- Distilled Spirits: Removal of chill haze and fatty acids without stripping flavor.
- Cosmetics: Clarification of perfumes, oils, and lotions.
- Food & Beverage: Polishing filtration for syrups, juices, and wines.
- Botanical Extracts: Efficient removal of waxes and lipids while maintaining high flow rates.
Why Choose Purecowater?
As a distributor and OEM for top filtration brands like Veolia, WTS, and Fil-trek, Purecowater understands the complexities of liquid filtration. We can help you select the exact ErtelAlsop configuration—housing and media—to optimize your specific process.
Need help sizing your lenticular housing or selecting the right micron rating?