High-Efficiency Liquid Filtration for Industrial Applications
ErtelAlsop Pak® Lenticular Filters, also known as depth filter modules, represent a significant advancement in filtration technology. Designed to provide a totally enclosed, scalable, and easy-to-use alternative to traditional plate and frame filters, these cartridges are essential for industries requiring rigorous particle retention and high throughput. As a distributor for top-tier filtration solutions, Purecowater is proud to supply these versatile modules to tackle your toughest liquid filtration challenges.
What Are Lenticular Pak Filter Cartridges?
The Lenticular Pak® serves as a pre-filter or final polishing filter depending on the specific application. The unit consists of stacked lenticular filter cells—typically 5 to 18 cells high—assembled into a single cartridge. Each cell is comprised of a pair of depth filter media sheets (such as MicroMedia®, AlphaMedia®, or MicroClear®) with edges sealed using a patented polypropylene process. This design resembles a stack of double convex lenses, maximizing surface area within a compact footprint.
Key Advantages
- Enclosed System: Unlike open plate and frame presses, the lenticular format is housed inside a sealed pressure vessel (housing), eliminating leakage and reducing exposure to the product.
- Scalability: Available in industry-standard 12-inch and 16-inch diameters, fitting virtually any existing lenticular housing.
- Zeta Potential: Many media options, such as the Zeta-Pak®, exhibit a positive electro-kinetic charge (Zeta Potential) that attracts and holds negatively charged contaminants smaller than the mechanical pore size.
- Rapid Change-Out: The modular design allows for quick installation and removal, significantly reducing downtime compared to manual sheet filters.
Technical Specifications
ErtelAlsop Pak cartridges are engineered to meet diverse process conditions. Below is a breakdown of the standard specifications available via Purecowater.
| Specification | Details |
|---|---|
| Diameter Options | 12 inch (30.5 cm) & 16 inch (40.6 cm) |
| Micron Ratings (Nominal) | 0.25 µm to 15 µm |
| Filter Media Types | MicroMedia®, AlphaMedia®, MicroClear® (Carbon), Bio-Pak® |
| End Cap Configurations | Flat Gasket (DOE) or Double O-Ring (Code 3/8) |
| Core Material | Polypropylene |
| Gaskets | EPDM, Viton, Silicone, Buna-N |
| Operating Limits | High solids loading capacity; compatible with sanitization cycles |
Available Media Grades
Choosing the right media is critical for optimal filtration performance. ErtelAlsop offers several proprietary media formulations:
- Zeta-Pak® (MicroMedia®): The workhorse of the line. Contains filter aid (Diatomaceous Earth/Perlite) and cellulose. It offers high zeta potential for removing haze, ultra-fine particles, and endotoxins. Ideal for pharmaceutical and beverage applications.
- AlphaMedia®: A pure cellulose media (no inorganic filter aids) utilized where extremely low extractables are required.
- MicroClear®: Activated carbon-impregnated media designed to remove color, odor, and flavor without the mess of bulk carbon powder.
Common Applications
These lenticular filters are used extensively across industries prioritizing product purity and clarity:
| Food & Beverage | Distilled spirits, wine clarification, syrups, and edible oils. |
| Pharmaceuticals | API filtration, LVP/SVP polishing, and removing pyrogens. |
| Cosmetics | Perfumes, lotions, and essential oils. |
| Botanical Extraction | Lipid and wax removal (winterization) in cannabis and hemp processing. |
Start Your Filtration Project
Whether you need to upgrade from a plate and frame press or replace existing lenticular modules, Purecowater has the technical expertise to guide your selection. We ensure you get the correct micron rating, media type, and adapter configuration for your specific housing.
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