High-Efficiency Depth Filtration for Industrial Applications
For industries requiring superior clarity and high solids retention, ErtelAlsop Pak® Lenticular Filters represent the gold standard in depth filtration technology. As a distributor for top-tier filtration solutions, Purecowater offers these versatile lenticular modules to solve complex liquid filtration challenges ranging from pharmaceutical processing to botanical extraction.
This product guide details the technical specifications, operational advantages, and application suitability of the ErtelAlsop Pak® series.
What Are Pak® Lenticular Cartridges?
ErtelAlsop Pak® cartridges (also known as lenticular modules) are depth filters designed in a convenient, stacked-disc format. Unlike surface filters that trap particles only on the top layer, these modules utilize a thick depth media matrix to trap contaminants throughout the entire cross-section of the filter.
The “Lenticular” design consists of individual filter cells—resembling double convex lenses—stacked on a central core. This configuration packs a massive amount of surface area into a compact footprint, allowing for high flow rates and exceptional dirt-holding capacity.
Key Features and The Zeta-Pak® Advantage
The cornerstone of this product line is the Zeta-Pak®, which utilizes ErtelAlsop’s MicroMedia®. This media is formulated with cellulose and filter aids (such as Diatomaceous Earth or Perlite) and possesses a positive Zeta Potential. This electrokinetic charge attracts and holds negatively charged particles (like bacteria, hazes, and fine colloids) that are smaller than the filter’s physical pore size.
Core Benefits:
- High Solids Loading: The depth matrix absorbs specific contaminants, preventing premature blinding associated with membrane filters.
- Scalability: Available in 12-inch and 16-inch diameters with various cell counts (5 to 18 cells) to fit standard housings.
- Leak-Free Design: Edges are sealed via a patented process using polypropylene, ensuring no fluid bypass.
- Versatility: Options include AlphaMedia® (pure cellulose), MicroClear® (activated carbon), and MicroMedia® (DE/Perlite impregnated).
Technical Specifications
The following table outlines the standard operating parameters and material options for the ErtelAlsop Pak® series available through Purecowater.
| Specification | Details |
|---|---|
| Micron Ratings | 0.25 µm – 15 µm (Nominal) |
| Diameters | 12-inch (30.5 cm) & 16-inch (40.6 cm) |
| Filter Media Options | Cellulose, Diatomaceous Earth (DE), Perlite, Activated Carbon |
| Core Material | Polypropylene |
| End Configurations | Flat Gasket, Double O-Ring (e.g., 222, 226) |
| Gasket Materials | EPDM, Buna-N, Viton, Silicone |
Primary Applications
Due to their robust design and variety of media grades, these filters are deployed across critical industries:
1. Botanical Extraction (Dewaxing)
Lenticular filters are the industry preference for removing waxes, lipids, and fine particulates from ethanol extracts. The filter aid impregnated into the media actively adsorbs lipids, resulting in a polished, clear distillate.
2. Pharmaceuticals & Gechnology
Used for the clarification of syrups, blood fractionation, and pre-filtration for membrane protection. The low extractables and sanitary housing compatibility make them ideal for API production.
3. Food & Beverage
From distilled spirits to soft drinks, these filters remove haze and organic impurities without stripping flavor. They are standard for polishing filtration in wineries and distilleries.
4. Chemical & Industrial
Effective for straining paints, varnishes, perfumes, and removing carbon fines from process fluids.
Why Partner with Purecowater?
Purecowater acts as your direct distributor and OEM partner for high-end filtration setups. Whether you need a single replacement module or a full turnkey housing system (such as the Cannaskid™ or sanitary housings), our engineering team ensures you get the correct media grade compatibility for your specific stream.
Ready to optimize your filtration process?