For industrial applications requiring superior clarity and high throughput, ErtelAlsop Pak® Lenticular Filters represent the gold standard in depth filtration technology. As a robust solution for liquid filtration, these cartridges combine the precision of depth filter media with the convenience of a modular design. Purecowater is proud to offer these high-efficiency filters to tackle complex solid and liquid separation challenges across various industries.
What Are ErtelAlsop Pak® Lenticular Filters?
The ErtelAlsop Pak® is a lenticular depth filter cartridge assembled from stacked filter cells. Unlike traditional plate and frame filters, which function as open systems, lenticular modules are designed to operate inside a closed filter housing. This design eliminates leakage and protects the product from external contamination.
Each module consists of multiple depth filter sheets—typically varying from 5 to 18 cells—stacked and sealed to form a rigid unit. The “lenticular” name is derived from the convex lens shape of the filter cells. These modules utilize premium media, such as Micro-Media®, which is often pre-impregnated with Diatomaceous Earth (DE) or other filter aids to create a dense, porous matrix capable of retaining ultra-fine particles.
Key Features and Configurations
ErtelAlsop Pak® cartridges are engineered for versatility. They are available in standard industry diameters and end configurations to fit a wide range of filter housings.
- Diameters: 12-inch (30.5 cm) and 16-inch (40.6 cm)
- End Types: Double O-Ring and Flat Gasket
- Media Grades: Pharmaceutical grade, Industrial grade, and Botanical specific
Technical Specifications
Below is a breakdown of the typical specifications for the ErtelAlsop Pak® series available through Purecowater:
| Feature | Specification Details |
|---|---|
| Micron Ratings | Nominal ratings from 0.25 µm to 15 µm (Common: 1.0, 2.5, 5.0 µm) |
| Diameter Options | 12 inch, 16 inch |
| Media Material | Cellulose, Diatomaceous Earth (DE), Perlite, Activated Carbon |
| Core Material | Polypropylene (standard) |
| Gasket Material | EPDM, Silicone, Buna-N, Viton |
| Filtration Type | Depth Filtration (Adsorption & Mechanical Sieving) |
Performance Advantages
1. Scalability and Ease of Use
One of the primary benefits of the lenticular format is the ease of change-out. Unlike plate and frame filters that require labor-intensive manual cleaning and sheet replacement, the Pak® module can be easily removed and replaced as a single unit. This reduces downtime and maintenance costs significantly.
2. High Solids Loading & Zeta Potential
The media used in these filters contains a positive Zeta potential, which enhances the capture of negatively charged particles (such as bacteria, hazes, and colloids) through electrokinetic adsorption. Coupled with the high surface area of the stacked discs, these filters offer exceptional solids holding capacity.
3. Chemical Compatibility
With polypropylene supports and EPDM gaskets, ErtelAlsop Pak® filters are compatible with a wide array of solvents and chemicals, making them safe for rigorous industrial processing and extraction.
Common Applications
The versatility of the Pak® Lenticular Filter makes it a “workhorse” in many sectors. It is particularly noted for its effectiveness in removing waxes, lipids, and fine particulates without affecting the odor or taste of the liquid.
- Botanical Extracts: Excellent for winterization and wax removal in essential oil and hemp extraction processes.
- Food & Beverage: Clarification of syrups, juices, and edible oils.
- Distilled Spirits: Haze removal and polishing for shelf-stable clarity.
- Pharmaceuticals & Cosmetics: Ensuring product purity and safety standards.
- Chemical Processing: Filtration of specialty chemicals and solvents.
Contact Purecowater for Filtration Solutions
Whether you are scaling up a botanical extraction facility or optimizing an industrial water treatment process, Purecowater has the expertise and inventory to support you. As a distributor for top-tier OEMs like ErtelAlsop, we can help you select the precise micron rating and media configuration for your needs.