Advanced Depth Filtration with ErtelAlsop Pak® Lenticular Cartridges
For industrial and sanitary filtration applications requiring high solids loading capacity and superior particle retention, ErtelAlsop Pak® Lenticular Filters represent the industry standard. As a distributor for premier filtration solutions, Purecowater provides these advanced depth filter modules to replace traditional plate and frame systems with a more enclosed, efficient, and operator-friendly solution.
The Pak® system consists of stacked lenticular filter cells, available in 12-inch and 16-inch diameters. These modules utilize a complex matrix of fibers and filter aids to provide a tortuous path for fluids, ensuring efficient removal of particulates ranging from 0.25 to 15 microns. Whether for pharmaceutical purification, botanical extraction, or industrial oil processing, these cartridges offer scalable performance in a leak-free format.
Key Features and Benefits
- Enclosed System: Unlike open plate and frame filters, lenticular cartridges operate inside a sealed housing, preventing leakage and minimizing exposure to the atmosphere.
- High Solids Loading: The depth media structure allows for significant contaminant holding capacity before a pressure drop occurs.
- Scalability: Available in various cell counts (5 to 18 cells) and standardized diameters, allowing users to scale up from pilot to production easily.
- Comprehensive Media Options: Modules can be fitted with MicroMedia® (DE/Perlite), AlphaMedia® (Pure Cellulose), or MicroClear® (Carbon) to suit specific chemical compatibility needs.
Product Variants: Zeta-Pak® vs. Disc-Pak®
ErtelAlsop offers distinct formulations to match the viscosity and chemical requirements of your process stream. The two most common configurations are:
| Feature | Zeta-Pak® (The Workhorse) | Disc-Pak® (Cellulose Only) |
|---|---|---|
| Main Compound | Cellulose + Diatomaceous Earth (DE) or Perlite | 100% Cellulose (AlphaMedia) |
| Best Application | Haze removal, polishing, removal of ultra-fine particles via Zeta Potential. | Viscous fluids, perfumes, dielectric oils, or where DE is prohibited. |
| Key Benefit | Maximum retention efficiency; effective on botanical extracts and lipids. | Prevents alteration of active ingredients; very low extractables. |
Technical Specifications
These modules are designed to fit into standard lenticular housings (including ErtelAlsop’s “Lock and Load” designs) and are compatible with most competitive 12″ and 16″ housings. The construction ensures structural integrity even under pressure.
| Diameters Available | 12 inch (30.5 cm) & 16 inch (40.6 cm) |
| Micron Retention (Nominal) | 0.25, 0.45, 1.0, 2.5, 5.0, 10.0, 15.0 µm |
| End Cap Configurations | Flat Gasket or Double O-Ring |
| Core Material | Polypropylene |
| Gasket Materials | EPDM, Buna-N, Silicone, Viton, PTFE Encapsulated |
| Maximum Operating Temp | Dependent on Gasket/Core selection (typically up to 180°F for Polypro) |
Common Applications
Due to the wide range of media grades, ErtelAlsop Pak cartridges are utilized across diverse industries:
- Food & Beverage: Distilled spirits, sugar syrups, soft drinks, beer, and wine polishing.
- Life Sciences: Pharmaceutical intermediates, botanical extracts (removing waxes and lipids), and biologicals.
- Cosmetics: Perfumes, colognes, and essential oils (using Disc-Pak for minimal odor/taste interference).
- Chemical & Utility: Dielectric oils, lubricating oils, and process water.
For detailed sizing, compatibility checks, or to quote a replacement for your existing lenticular modules, please reach out to our engineering team.