Advanced Depth Filtration with ErtelAlsop Pak® Lenticular Filters
For industries requiring high-purity liquid filtration with improved operational efficiency, ErtelAlsop Pak® Lenticular Filters represent the gold standard in depth filtration technology. As a distributor for top-tier filtration solutions, Purecowater provides these versatile modules to replace traditional plate and frame systems, offering a cleaner, sealed, and more user-friendly operation.
Whether you are tackling botanical extraction, pharmaceutical processing, or beverage clarification, the Pak® Lenticular Cartridges provide high solids loading capacity and superior particle retention.
What is a Pak® Lenticular Filter?
The ErtelAlsop Pak® cartridge is a modular depth filter designed to fit inside a totally enclosed housing. The design conceptualizes a “stack of lenses” (hence lenticular), where individual cells are composed of depth filter media sheets sealed together. This format combines the high filtration surface area of a plate and frame press with the convenience and leak-proof security of a cartridge system.
The modules utilize a variety of media formulations, including the renowned Micro-Media® (cellulose/perlite/DE), AlphaMedia™ (pure cellulose), and MicroClear® (immobilized carbon), to target specific contaminants such as haze, waxes, lipids, or off-odors.
Key Features and Benefits
- Closed System Design: Unlike open plate and frame filters, lenticular modules operate inside a sealed housing, preventing product loss and eliminating exposure to the atmosphere. This is critical for sanitary applications and solvents.
- High Solids Loading: The depth media matrix traps particles throughout the thickness of the pad, not just on the surface, allowing for longer service life and higher throughput.
- Scalability: Available in 12-inch and 16-inch diameters with varying cell counts (up to 18 cells), enabling linear scale-up from pilot to production.
- Rapid Change-Out: Modules can be replaced in minutes, reducing downtime and labor costs significantly compared to restacking a filter press.
Technical Specifications
ErtelAlsop Pak® filters are highly customizable to fit existing process lines. Below are the standard specifications available through Purecowater.
| Feature | Specification Details |
|---|---|
| Diameters | 12 inch (30.5 cm) & 16 inch (40.6 cm) |
| Micron Ratings (Nominal) | 0.25 µm to 15.0 µm (Grade dependent) |
| End Configurations | Double O-Ring (DO) or Flat Gasket |
| Gasket Materials | EPDM, Silicone, Buna-N, Viton, Teflon (Encapsulated) |
| Core Material | Polypropylene (Standard), Stainless Steel (Optional) |
| Max Operating Temp | Typically up to 180°F (82°C) depending on gasket/media |
Available Media Grades
Choosing the correct media is vital for achieving your target filtrate quality. Purecowater can assist in testing and selecting the optimal grade for your stream.
| Series | Composition | Target Application |
|---|---|---|
| Zeta-Pak® (Micro-Media) | Cellulose & Diatomaceous Earth (DE) | General clarification, haze removal, botanical extracts (wax/lipid removal). |
| Bio-Pak® | Highly refined cellulose & DE | Pharmaceuticals, biologicals, and high-purity chemicals. Low extractables. |
| Disc-Pak® (MicroClear) | Immobilized Activated Carbon | Color correction, odor removal, and decolorization without loose carbon dust. |
| AquaKv-Pak® | Specialized Absorptive Media | Transformer oil filtration (removal of water and carbon deposits). |
Common Applications
Because of their versatility, ErtelAlsop Pak filters are used across a wide spectrum of industries:
- Botanical Extraction: Efficiently removes waxes, lipids, and fine particulates from ethanol or hydrocarbon extracts.
- Food & Beverage: Clarification of mixing syrups, distilled spirits, wine, and flavorings.
- Pharmaceuticals: filtration of API solvents and removal of precious metal catalysts.
- Electric Utility: Reconditioning of insulating oil in transformers and switchgear.
- Chemical Processing: Polishing of specialty chemicals and silicone production.
Integration and Support
Purecowater acts as your technical partner for implementing these filtration systems. We supply both the Pak® Lenticular Cartridges and the stainless steel Housings (vertical or horizontal “lock and load” configurations) required to run them.
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