Advanced Depth Filtration with ErtelAlsop Pak® Lenticular Filters
For industrial and sanitary processing, the ErtelAlsop Pak® Lenticular Filter represents a significant evolution in liquid depth filtration. Designed to combine the superior filtration quality of plate and frame systems with the convenience of a closed cartridge housing, these lenticular modules are the “workhorse” for applications ranging from botanical extraction to pharmaceutical processing.
At Purecowater, we distribute and support high-performance filtration solutions like the ErtelAlsop Pak® to eliminate leaks, reduce change-out times, and ensure consistent product quality.
What is a Lenticular Pak® Filter?
The ErtelAlsop Pak® serves as a modular depth filter cartridge. Unlike surface filters that trap particles only on the top layer, these depth filters utilize a tortuous path of fibers and filter aids (like Diatomaceous Earth or Perlite) to trap solids throughout the thickness of the media.
Each cartridge is constructed from stacked “lenticular” cells—named for their double convex lens shape. These cells are hermetically sealed and stacked on a central polypropylene core, typically available in 12-inch or 16-inch diameters [ertelalsop.com].
Key Benefits Over Traditional Methods
Historically, plate and frame presses were the standard for depth filtration. While effective, they are often open systems susceptible to leakage and labor-intensive maintenance. The Lenticular Pak® format solves these issues:
- Leak-Free Design: The totally enclosed housing prevents exposure to the atmosphere and eliminates product loss due to dripping plates.
- Rapid Change-Out: Replacing a stack of cartridges takes a fraction of the time compared to manually dressing a filter press with individual sheets.
- Scalability: “Pak” modules are easily scalable using varying numbers of cells (5 to 18) per stack to meet specific batch sizes [store.clearsolutionscorp.com].
Media Technologies and Configurations
One of the strongest features of the ErtelAlsop line is the versatility of the media. Depending on the fluid viscosity and the target contaminant, operators can select different high-performance media grades.
| Media Series | Composition | Primary Applications |
|---|---|---|
| MicroMedia® | Cellulose perlite, or Diatomaceous Earth (DE) | General clarification, haze removal, botanical extracts, beer & wine. High zeta potential for removing ultra-fine particles. |
| AlphaMedia™ | 100% Cellulose (No DE/Perlite) | Pharmaceuticals, dielectric oils, syrups, and fluids where active ingredients must remain intact [clearsolutionscorp.com]. |
| MicroClear® | Impregnated Activated Carbon | Color correction, odor removal, and decolorization directly in the filter step. |
Technical Specifications
ErtelAlsop cartridges are compatible with most standard lenticular housings. The following specifications outline the operational parameters available.
| Specification | Details |
|---|---|
| Micron Retention | 0.25 µm to 15 µm (Nominal) |
| Diameters Available | 12-inch (30.5 cm) and 16-inch (40.6 cm) |
| End Cap Configurations | Flat Gasket or Double O-Ring (for secure sanitary sealing) |
| Construction Materials | Polypropylene Core/Support, Cellulose/DE Media, EPDM Gaskets (Standard) |
| Stack Sizes | 5 to 16+ cells per Pak |
Ideal Applications
The flexibility of the Pak® filter allows it to serve various industries:
- Food & Beverage: Polishing distilled spirits, removing chill haze, and wine clarification.
- Botanical Extraction: In cannabis and hemp processing, the MicroMedia® series is famously effective at removing waxes and lipids at high flow rates [store.clearsolutionscorp.com].
- Chemicals & Utilities: Filtration of insulating oils, coolants, and process water where particulate retention is critical to equipment safety.
- Cosmetics: Clarification of perfumes, lotions, and oils.
Why Choose Purecowater for Your Filtration Needs?
As a distributor and OEM partner for leading brands like Veolia and others, Purecowater understands that selecting the right depth media is critical for your process efficiency. Whether you need the high solids loading of MicroMedia® or the purity of AlphaMedia™, we can help dimension the correct system for your facility.
For more information on sizing, housing compatibility, or pricing for ErtelAlsop Pak® Cartridges, please reach out to our engineering team.
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