Efficient filtration is critical for industries ranging from pharmaceuticals to food and beverage. At Purecowater, we understand that finding the right balance between throughput, retention, and operator safety is key. The ErtelAlsop Pak® Lenticular Filters represent a significant evolution in depth filtration technology, offering a robust alternative to traditional plate and frame systems.
This article explores the technical capabilities, operational benefits, and diverse applications of these lenticular cartridges, distinguishing them as a premier choice for solid-liquid separation challenges.
What is a Lenticular Filter?
The ErtelAlsop Pak® lenticular cartridge (or module) is a depth filtration unit designed acting as a totally enclosed system. It consists of multiple depth filter cells stacked vertically. Each cell is constructed from a pair of filter sheets—such as the MicroMedia® or AlphaMedia® series—sealed at the edges using a patented process. This assembly resembles a stack of double convex lenses, which is where the term “lenticular” originates. [ertelalsop.com]
Unlike standard surface filters, these depth filter modules utilize a complex matrix of fibers and filter aids (like Diatomaceous Earth) to trap particles not just on the surface but throughout the thickness of the media. This results in high solids loading capacity and superior retention of ultra-fine particles. [clearsolutionscorp.com]
Why Choose ErtelAlsop Pak® Cartridges?
For facility operators and engineers, the shift from plate and frame filters to lenticular housings is often driven by the need for closed systems and ease of use. The primary advantages include:
- Leak-Free Operation: The modules operate within a sealed housing, eliminating the drip loss and mess associated with open plate and frame presses. This is critical for processing expensive or hazardous fluids.
- Rapid Change-Outs: Replacing a spent stack takes a fraction of the time required to dress a filter press, significantly reducing downtime. [ertelalsop.com]
- Scalability: With sizes available in 12-inch and 16-inch diameters and varying cell counts (5 to 18 cells), systems can be scaled up easily from pilot to production.
- Broad Chemical Compatibility: Polypropylene cores and EPDM gaskets (standard) ensure compatibility with numerous solvents and aqueous solutions.
Technical Specifications
The versatility of the ErtelAlsop Pak® line lies in its customizable configurations. Below are the standard technical specifications available for these modules.
| Feature | Specification Details |
|---|---|
| Module Diameters | 12 inch (30.5 cm) & 16 inch (40.6 cm) |
| Micron Ratings | 0.25 µm to 15 µm (Nominal) |
| Core Material | Polypropylene |
| Gasket Material | EPDM (Standard), others available |
| End Cap Configuration | Flat Gasket (DOE) or Double O-Ring (SOE) |
| Max Temperature | Typically ~180°F (depending on media/gasket) |
Media Types and Compatibility
Choosing the right media is essential for performance. ErtelAlsop offers several proprietary media formulations:
| Media Brand | Composition | Ideal Application |
|---|---|---|
| Zeta-Pak® | Cellulose, Diatomaceous Earth (DE), Wet Strength Resin | Pharma, Biotech, Haze Removal (Positive Zeta Potential) |
| Disc-Pak® | 100% Cellulose (AlphaMedia®) | Dielectric oils, food syrups, perfumes (No inorganic extraction) |
| Bio-Pak® | Highly refined Cellulose | Critical biological applications |
| MicroClear® | Immobilized Activated Carbon | Color, odor, and flavor correction |
Note: The Disc-Pak is particularly unique as it contains no resins or inorganic filter aids, making it ideal for applications where maintaining pure active ingredient profiles is strictly required. [clearsolutionscorp.com]
Primary Applications
The versatility of these filters allows them to be deployed across various high-value sectors:
- Botanical Extracts: Excellent for winterization and dewaxing. The DE media efficiently removes waxes and lipids while the high surface area maintains flow. [clearsolutionscorp.com]
- Pharmaceuticals: Used for particulate reduction and haze removal in sterile preparations.
- Food & Beverage: Polishing filtration for distilled spirits, wine, syrups, and edible oils.
- Industrial Utilities: Filtration of dielectric oils, coolants, and water purification in power generation.
Looking for a Solution?
Whether you need to upgrade from a messy filter press or require a specific micron rating for a new botanical extraction line, Purecowater provides the expertise and inventory to support your operations.
Ready to optimize your filtration process?
Contact us today to discuss sizing, media selection, or to request a quote for ErtelAlsop Pak® Lenticular Filters.