Introduction to ErtelAlsop Pak® Lenticular Filters
In the world of industrial filtration, efficiency and reliability are paramount. The ErtelAlsop Pak® Lenticular Filters (also known as Zeta-Pak®) represent the gold standard for depth filtration technology. Designed to tackle comprehensive solid and liquid filtration problems, these modules serve as a versatile “workhorse” for industries ranging from pharmaceuticals to botanical extraction.
At Purecowater, we understand that selecting the right filtration media is critical for your process. As a distributor for top-tier engineered solutions, we are proud to detail the capabilities of the ErtelAlsop Pak series, a solution designed for high flow rates, superior particle retention, and ease of use.
What is a Lenticular Filter?
Lenticular filtration combines the advantages of traditional plate and frame extenders with the convenience of a cartridge system. A “Pak” consists of multiple filter cells stacked vertically. Each cell is formed by a pair of depth filter media sheets (such as Micro-Media® or AlphaMedia®) sealed around the edges using a patented polypropylene process.
The resulting shape resembles a stack of double convex lenses, which is where the term “lenticular” originates. This design maximizes surface area within a compact footprint, allowing for high solids loading capacity and efficient throughput.
Key Features
- Enclosed System: Unlike open plate and frame filters, lenticular modules operate inside a sealed housing (such as the Vapor Master), preventing leakage and protecting product integrity.
- Zeta Potential: The media often incorporates electrokinetic properties (Zeta potential) that attract and hold ultra-fine particles smaller than the mechanical pore size.
- Easy Change-Out: The pre-assembled module design eliminates the need to handle loose filter sheets, significantly reducing downtime and labor costs during change-outs.
Technical Specifications
The ErtelAlsop Pak® modules are highly customizable to fit precise process requirements. Below is a breakdown of the standard specifications available regarding these depth filter cartridges.
| Feature | Specification Details |
|---|---|
| Diameters Available | 12 inch (30.5 cm) & 16 inch (40.6 cm) |
| Micron Ratings (Nominal) | 0.25 µm to 15 µm (Common ratings: 1.0, 2.5, 5.0 µm) |
| Filter Media Types | Cellulose, Micro-Media® (with DE), AlphaMedia®, MicroClear® (Carbon) |
| End Configurations | Double O-Ring, Flat Gasket |
| Core Material | Polypropylene |
| Gasket Material | EPDM, Silicone, Viton, etc. |
Common Applications
Due to their versatility and the availability of different media grades (including Diatomaceous Earth impregnated media), ErtelAlsop Pak filters are utilized across a wide spectrum of industries.
1. Botanical Extracts & CBD Oil
One of the most popular uses for the Zeta-Pak® is in the filtration of botanical extracts. The media is particularly effective at removing waxes, lipids, and fine particulates from ethanol or hydrocarbon-based extractions without stripping desired compounds. The large surface area allows for high flow rates even with viscous fluids.
2. Food & Beverage
From distilled spirits to syrups, these filters ensure clarity and stability. They effectively remove haze-causing proteins and particles, ensuring a polished final product.
3. Chemicals & Pharamaceuticals
Used for API solvent-based solutions, catalyst removal (such as carbon or platinum), and decolorization using MicroClear® activated carbon media. The enclosed housing environment is critical here for operator safety and solvent recovering.
Why Choose ErtelAlsop Pak Filters?
Choosing the right depth filter is about balancing flow rate, retention efficiency, and cost.
- Scalability: Whether you are in the lab using a 12″ module or full-scale production with 16″ stacks, the media performance remains consistent.
- Structural Integrity: The rigid polypropylene core and support structure withstand pressure fluctuations better than standard filter sheets.
- Safety: Materials of construction are kept to a minimum to ensure chemical compatibility (Polypropylene and EPDM are standard) and product safety.
Get a Solution Tailored to Your Needs
Purecowater is your trusted partner for industrial filtration. Whether you need a specific micron rating for fine chemical processing or a robust solution for botanical extraction, we can help supply the correct ErtelAlsop configuration for your facility.