High-Efficiency Depth Filtration Modules
For industries requiring precise liquid clarification and high solids loading capacity, ErtelAlsop Pak® Lenticular Filters represent the gold standard in depth filtration technology. As a distributor and OEM for top-tier filtration solutions, Purecowater is proud to offer these advanced lenticular modules designed to replace traditional, labor-intensive plate and frame filters with a sealed, convenient, and highly efficient system.
Whether you are operating in the pharmaceutical, food and beverage, or chemical sectors, the Pak® Lenticular Cartridges provide superior particle retention and scalable throughput.
What is the ErtelAlsop Pak®?
The ErtelAlsop Pak® is a depth filter cartridge—often referred to as a lenticular module—assembled from varied numbers of stacked filter cells. Each cell consists of a pair of depth filter media sheets (incorporating cellulose, diatomaceous earth, or other aids) sealed at the edges using a patented polypropylene process. This construction creates a stack resembling double convex lenses, giving rise to the name “lenticular.”
This design allows for totally enclosed filtration. Unlike open plate and frame presses, which can suffer from leakage and exposure to the environment, lenticular modules are housed in sealed vessels. This ensures product integrity, operator safety, and minimal product loss [ertelalsop.com].
Key Features and Benefits
- Scalable configurations: Available in 12-inch and 16-inch diameters with 5 to 18 cells per module.
- Diverse Media Options: Categories include AlphaMedia® (cellulose), MicroMedia® (filter aid/cellulose), and MicroClear® (carbon).
- High Solids Loading: The depth media matrix captures contaminants throughout the thickness of the pad, not just on the surface.
- Zero Leakage: Enclosed housings prevent dripping and evaporation, crucial for spirits, botanical extracts, and hazardous chemicals.
- Rapid Changeout: Modules can be swapped in minutes, unlike the hours required for re-sheeting a plate and frame press.
Technical Specifications
The adaptability of the Pak® system allows it to fit virtually any process flow. Below are the standard specifications for the lenticular modules available through Purecowater.
| Feature | Specification |
|---|---|
| Diameters | 12″ (30.5 cm) and 16″ (40.6 cm) |
| Number of Cells | 5 to 18 stacked cells |
| Micron Ratings (Nominal) | 0.25 µm to 15 µm (Standard grades: 1.0, 2.5, 5, 10 µm) |
| End Cap Configurations | Flat Gasket, Double O-Ring (222/226 style) |
| Core Material | Polypropylene |
| Gasket Materials | EPDM, Silica, Buna-N, Viton |
Media Configurations
Choosing the right media is critical for optimizing filtration performance. The ErtelAlsop Pak® series offers distinct media formulations [clearsolutionscorp.com]:
- MicroMedia® (Zeta-Pak®):
Incorporates cellulose fibers and filter aids like Diatomaceous Earth (DE) or Perlite. These are ideal for haziness removal and polishing. The DE creates a tortuous path for high-efficiency particle capture. Used frequently in botanical extracts to remove waxes and lipids.
- AlphaMedia® (Disc-Pak®):
Comprised of 100% cellulose without inorganic filter aids. This series is perfect for applications where mineral extractables are a concern, such as dielectric oils, light viscosity liquids, and pharmaceutical preparations.
- MicroClear®:
Impregnated with activated carbon to remove color, odor, and taste anomalies without the mess of bulk carbon handling.
Applications
The versatility of the Pak® Lenticular Filters makes them essential in a wide variety of industries:
- Food & Beverage: Clarification of syrups, vinegars, and edible oils.
- Distilled Spirits: Polishing filtration for whiskey, vodka, and gin (chill haze removal).
- Pharmaceuticals: Active Pharmaceutical Ingredients (API) purification and solvent filtration.
- Botanical Extraction: Removal of plant waxes, lipids, and fine particulates from ethanol or hydrocarbon extracts.
- Utilities: Filtration of dielectric oils and coolants in power generation.
Housing Compatibility
ErtelAlsop cartridges are designed to fit into a range of housings, including vertical and horizontal orientations. The Horizontal Filter Housing is particularly notable for its “Lock and Load” system, which allows operators to slide cartridges in comfortably without the need for overhead hoists, enhancing safety and speed [ertelalsop.com].
Solve Your Filtration Challenges Today
If you are looking to upgrade your filtration train or replace aging plate and frame presses, the ErtelAlsop Pak® Lenticular system offers a modern, efficient, and clean solution. Purecowater can help you select the exact micron rating and media composition for your specific liquid stream.