Purecowater is proud to supply high-performance filtration solutions for industrial and sanitary applications. Among our premier offerings are the ErtelAlsop Pak® Lenticular Filters. Designed for critical depth filtration, these cartridges combine the superior retention of depth media with the convenience of a closed, modular system.
What are ErtelAlsop Pak® Lenticular Filters?
The ErtelAlsop Pak® cartridge—often referred to as a lenticular module—is a depth filtration unit comprised of stacked filter cells. Unlike surface filters that trap particles only on the outer layer, these modules utilize a thick, complex matrix of filter media to trap contaminants throughout the entire depth of the structure.
Each module consists of multiple dual-layer lenticular cells (resembling double convex lenses) stacked on a central core. The edges are sealed using a patented process (often polypropylene) to ensure integral strength and prevent bypass. This design packs a massive amount of surface area into a compact footprint, allowing for high flow rates and exceptional dirt-holding capacity.
Core Technologies and Media Options
ErtelAlsop cartridges are versatile due to the variety of media formulations available. Depending on your specific application—whether it is spirits filtration, botanical extraction, or pharmaceutical processing—there is a media type designed for the task.
1. Zeta-Pak® (Micro-Media®)
The Zeta-Pak® serves as the industry workhorse. It features Micro-Media®, which is composed of cellulose, wet-strength resin, and filter aids like Diatomaceous Earth (DE) or Perlite.
Key Feature: It exhibits a strong positive Zeta Potential, allowing it to electrokinetically attract and adsorb negatively charged particles (such as haze-forming colloids) that are smaller than the media’s physical pore size.
2. AlphaMedia™
For applications where inorganic filter aids (like DE) cannot be used, AlphaMedia™ offers a pure cellulose composition. It is ideal for specific pharmaceutical or chemical applications requiring low extractables.
3. MicroClear®
This series incorporates immobilized Activated Carbon within the depth filter matrix. It is used efficiently for color correction, odor removal, and dechlorination without the mess of handling loose carbon powder.
Technical Specifications
Below is a breakdown of the standard configurations and operating parameters for the ErtelAlsop Pak® series.
| Specification | Details |
|---|---|
| Diameters | 12-inch (30.5 cm) and 16-inch (40.6 cm) |
| Number of Cells | Typically 5 to 18 cells per stack (Standard is 16) |
| Micron Retention Ratings | 0.25 µm to 15 µm (Nominal) |
| End Cap Configurations | Flat Gasket, Double O-Ring (typically 222 or 226 style) |
| Core Material | Polypropylene (Standard) |
| Gasket Materials | EPDM, Silicone, Viton, Buna-N |
| Max Operating Temp | Typically up to 176°F (80°C) depending on gasket/media |
Primary Applications
The scalability and high solids loading capacity of ErtelAlsop Pak filters make them suitable for a wide range of industries.
- Botanical Extraction: In winterization and dewaxing processes, the Zeta-Pak® is highly effective at removing lipids, waxes, and fine particulates from ethanol extracts without affecting flavor profiles. Source: clearsolutionscorp.com
- Food & Beverage: Used for haze removal in distilled spirits, wine polishing, and syrup clarification.
- Pharmaceuticals & Biotech: Essential for pre-filtration to protect downstream sterile membranes and for API purification.
- Chemicals & Cosmetics: Filtration of perfumes, essential oils, and silicones.
Why Choose Purecowater?
At Purecowater, we understand that selecting the correct depth filter configuration is critical to your process efficiency. As a distributor/OEM, we can help you determine the optimal media grade, micron rating, and housing setup for your specific liquid stream.
Ready to Optimize Your Filtration Process?
Whether you need to replace existing modules or design a new filtration skid, our team is ready to assist you regarding prices, specifications, and lead times.