At Purecowater, we specialize in providing top-tier filtration solutions tailored to complex industrial needs. As a distributor and OEM for leading brands, we are proud to offer ErtelAlsop Pak® Lenticular Filters. These depth filter modules represent a significant evolution in filtration technology, offering the precision of depth media in a user-friendly, enclosed cartridge format.
What are ErtelAlsop Pak® Lenticular Filters?
ErtelAlsop Pak® Lenticular Filters (also known as modules or cartridges) are depth filtration systems designed to remove particulate, haze, and biological contaminants from liquids. Unlike surface filters that trap particles only on the top layer, these depth filters utilize a complex matrix of cellulose, filter aids (like Diatomaceous Earth), and resins to trap particles throughout the entire thickness of the media.
The design consists of stacked, disc-shaped filter cells. A single module typically contains between 5 to 18 cells, assembled in a vertical stack. This “lenticular” design maximizes surface area within a compact footprint, allowing for high flow rates and exceptional solids loading capacity.
Key Advantages Over Plate and Frame Filters
For decades, Plate and Frame filters were the standard. However, the Pak® Lenticular design offers a modern alternative that solves many traditional operational headaches:
- Leak-Free Operation: The modules fit inside a totally enclosed housing, preventing leakage and product loss.
- Safety & Hygiene: Enclosed systems protect operators from exposure to process fluids and prevent outside contaminants from entering the stream.
- Rapid Change-out: Unlike the labor-intensive teardown of a plate and frame press, a lenticular module can be changed in minutes.
- Scalability: Available in 12-inch and 16-inch diameters to fit various housing sizes.
Technical Specifications
Designed for versatility, the ErtelAlsop Pak® series is compatible with a wide range of industrial housings. Below are the standard specifications for these modules.
| Specification | Details |
|---|---|
| Module Diameters | 12″ (30.5 cm) and 16″ (40.6 cm) |
| Micron Ratings | 0.25 to 15 Microns (Nominal) |
| Cells Per Module | Standard 16 cells (Range: 5 to 18 cells) |
| End Cap Configurations | Flat Gasket or Double O-Ring |
| Core Material | Polypropylene (Standard) |
| Gasket Materials | EPDM, Buna-N, Viton, Silicone |
| Filtration Area (approx.) | 16″ Module: ~1.8 m² (19 ft²) 12″ Module: ~1.0 m² (10.7 ft²) |
Media Configurations
The core performance of the Pak® filter lies in the media. ErtelAlsop offers several distinct grades tailored to specific filtration goals:
1. Zeta-Pak® (The Workhorse)
The Zeta-Pak® is the most common configuration, composed of cellulose fibers, diatomaceous earth (DE), and wet-strength resins. It possesses a strong positive Zeta potential, which acts like a magnet to attract negatively charged contaminants (such as bacteria and endotoxins) that are smaller than the physical pore size.
2. AlphaMedia™
This series creates a porous depth filter without the use of inorganic filter aids or resins. It is ideal for applications requiring high purity where leaching or mineral content is a concern.
3. MicroClear®
This media incorporates immobilized Activated Carbon. It is designed to remove color, odor, and taste from liquids without the mess associated with loose carbon powder. It is widely used in pharmaceutical and distilled spirit applications.
Common Applications
Due to their versatility and robust construction, Pak® Lenticular filters are deployed across a variety of sectors served by Purecowater:
- Pharmaceuticals: API filtration, post-fermentation clarification, and removal of carbon catalysts.
- Food & Beverage: Haze removal in syrups, vinegar polishing, and distilled spirits filtration.
- Cosmetics: Clarification of perfumes, lotions, and oils.
- Chemicals: Filtration of solvents, resins, and inks.
- Utilities: The AquaKv-Pak® variant is specifically designed for removing water and carbon from transformer oils.
Why Partner with Purecowater?
Choosing the right filtration setup requires more than just buying a cartridge; it requires engineering expertise. At Purecowater, we assist in sizing the correct housing and selecting the optimal media grade for your specific fluid dynamics.
Whether you need to upgrade an old plate and frame press or install a new sanitary filtration skid, our team is ready to support your project.