Purecowater is proud to offer the high-performance ErtelAlsop Pak® Lenticular Filters. As a distributor/OEM for leading filtration brands, we provide these depth filtration modules to help industries tackle complex solid and liquid filtration challenges.
What are ErtelAlsop Pak Lenticular Filters?
ErtelAlsop Pak® depth filter cartridges—often referred to as lenticular filter modules—are an advanced filtration solution designed to provide the benefits of plate and frame filtration in a convenient, enclosed cartridge format.
A “Pak” or module is constructed from multiple stacked lenticular filter cells. Each cell consists of a pair of depth filter media sheets (such as MicroMedia® or AlphaMedia®) with edges sealed by a patented polypropylene process. The resulting stack resembles a series of double convex lenses, maximizing surface area within a compact footprint.
Key Benefits Over Traditional Methods
The totally enclosed design serves as an ideal alternative to traditional plate and frame filter presses. By utilizing the same high-quality filter media found in plate and frame systems, operators can easily translate existing process specifications to the lenticular format while gaining significant advantages:
- Zero Leakage: The enclosed housing eliminates leakage often associated with plate and frame filters.
- Reduced Downtime: The cartridge design allows for rapid change-outs, significantly lowering labor requirements and downtime.
- High Solids Loading: The complex matrix of fibers provides a high capacity for retaining solids.
- Versatility: Available in various grades, including options for water removal and pharmaceutical-grade filtration.
Technical Specifications and Configurations
The ErtelAlsop Pak® cartridges are engineered for versatility and are available in standard industry sizes. Below are the core specifications:
| Specification | Details |
|---|---|
| Module Diameters | 12 inch (30.5 cm) and 16 inch (40.6 cm) |
| Cell Count per Module | Typically 5 to 18 stacked cells (customizable) |
| Micron Ratings | Nominal retention from 0.25 µm to 15 µm |
| Media Types | MicroMedia® (Cellulose/DE), AlphaMedia®, MicroClear® (Carbon) |
| Core Material | Polypropylene |
| End Configurations | Flat Gasket, Double O-Ring (Plug-in style) |
| Gasket Materials | EPDM, Buna-N, Viton, Silicone |
The Zeta-Pak® Advantage
One of the most popular configurations is the Zeta-Pak®. These modules are manufactured with Micro-Media® containing Diatomaceous Earth (DE). This combination creates a rigid, porous cake that effectively sieves out particulate matter while providing a strong positive Zeta Potential for the adsorption of ultra-fine particles and contaminants such as haze or pyrogens.
Housing Options: Vertical and Horizontal
To complement the filter modules, ErtelAlsop offers robust Lenticular Filter Housings in both vertical and horizontal configurations. These housings are typically constructed from 316L Stainless Steel and are capable of holding up to four modules high.
Horizontal “Lock and Load” Housing
The Horizontal Filter Housing is a standout solution for industrial applications. Its orientation allows for single-person operation without the need for overhead hoists.
- Ergonomic Design: The horizontal orientation and “Lock and Load” tray system make loading cartridges simple and safe.
- Reduced Product Loss: The enclosed design minimizes liquid holdup.
- Scalability: Housings can be provided as single units or skid-mounted multi-housing systems.
Sanitary Pharmaceutical Housing
For critical applications in the life sciences, the Sanitary Pharmaceutical Housing offers a highly polished finish with sanitary fittings and no internal threads. When paired with Bio-Pak® Double O-Ring cartridges, this system ensures positive sealing and product integrity, eliminating the need for stainless steel center posts.
Common Applications
ErtelAlsop lenticular filters are trusted across a wide range of industries due to their reliability and efficiency.
- Food & Beverage: Haze removal in distilled spirits, wine polishing, and syrup clarification.
- Botanical Extracts: Efficient removal of waxes and lipids using DE-impregnated media.
- Pharmaceuticals: Clarification of cell cultures, removal of protein precipitates, and general bio-burden reduction.
- Chemicals & Cosmetics: Filtration of oils, perfumes, and specialty chemicals.
- Electric Utility: Transformer oil filtration.
Why Choose ErtelAlsop Pak Filters?
Whether you are filtering botanical extracts or clarifying high-value pharmaceuticals, the ErtelAlsop Pak® series offers a scalable, leak-free solution. The availability of over 300 precision dies ensures that there is a media grade and configuration effectively tailored to your specific retention and throughput needs.
Contact Purecowater today to discuss your filtration requirements and find the right lenticular solution for your process.