Introduction to ErtelAlsop Pak® Lenticular Filters
For industries requiring high-purity liquid filtration with efficiency and ease of use, ErtelAlsop Pak® Lenticular Filters represent a premier solution. As a leading choice for depth filtration, these cartridges—also known as lenticular modules—combine the high solid-holding capacity of depth filter sheets with the totally enclosed, leak-free design of cartridge housing systems.
At Purecowater, we understand that transitioning from traditional plate and frame filters to a more contained system can significantly improve your process flow and safety. ErtelAlsop Pak® cartridges are designed to fit a wide range of applications, from pharmaceutical processing to botanical extraction, offering a robust alternative that reduces downtime and product loss.
How Lenticular Pak® Technology Works
The innovation behind the Pak® cartridge lies in its construction. A “Pak” is assembled from varying numbers of filter cells stacked vertically. Each cell consists of a pair of depth filter media sheets—such as MicroMedia®, AlphaMedia®, or MicroClear®—sealed at the edges using a patented polypropylene molding process [ertelalsop.com].
This assembly resembles a stack of double convex lenses, which is why they are termed “lenticular.” This configuration provides a large surface area within a compact footprint, allowing for:
- High Solids Loading: The complex matrix of fibers captures particles throughout the depth of the media, not just on the surface.
- Leak-Free Operation: Unlike plate and frame filters which can drip, the lenticular format is housed inside a sealed vessel.
- Scalability: Available in 12-inch and 16-inch diameters with cell counts ranging from 5 to 18, allowing users to scale up easily [store.clearsolutionscorp.com].
Key Features and Benefits
Unmatched Versatility
ErtelAlsop offers over 300 precision dies to fit virtually any filter press or housing, but their lenticular Paks are specifically engineered for enclosed housings. Whether you require water removal, pharmaceutical-grade purity, or specific chemical compatibility, there is a media option available.
Advanced Media Options
The performance of the Pak® is driven by the media grade selected:
- Zeta-Pak®: Utilizes Micro-Media® with Diatomaceous Earth (DE) for high zeta potential and removal of ultra-fine particles/haze.
- Disc-Pak®: Uses AlphaMedia® (100% cellulose) for applications where no DE or perlite is desired, ideal for dielectric oils and perfumes [clearsolutionscorp.com].
- Bio-Pak®: Designed for biological and pharmaceutical applications.
Efficient Change-Outs
One of the primary advantages over traditional presses is the speed of maintenance. The “Lock and Load” design available in ErtelAlsop housings allows operators to change cartridges in a fraction of the time required to dress a plate and frame filter, significantly reducing labor costs and downtime.
Technical Specifications
Below is a breakdown of the standard specifications for ErtelAlsop Pak® Lenticular Filters. These parameters ensure compatibility with a wide range of industrial housings.
| Feature | Specification Details |
|---|---|
| Diameters Available | 12 inch (30.5 cm) & 16 inch (40.6 cm) |
| Number of Cells | 5 to 18 cells per module |
| Micron Retention | Nominal ratings from 0.25 to 15 microns |
| Media Types | Cellulose (AlphaMedia), DE Impregnated (MicroMedia), Carbon (MicroClear) |
| Core & Support Material | Polypropylene (Standard) |
| End Cap Configuration | Double O-Ring or Flat Gasket |
| Gasket Materials | EPDM, Buna-N, Silicone, Viton |
Common Applications
Due to their enclosed design and media versatility, ErtelAlsop Pak® cartridges are utilized across diverse sectors:
- Food & Beverage: Clarification of syrups, distilled spirits, and haze removal in beverages.
- Pharmaceuticals: API filtration and purification where enclosed systems are critical for hygiene.
- Botanical Extracts: Highly effective for removing waxes and lipids in extraction processes due to high flow rates and DE media integration [store.clearsolutionscorp.com].
- Chemical & Industrial: Filtration of lubricating oils, coolants, and dielectric oils using cellulose-only media.
- Cosmetics: Purification of perfumes and lotions.
Why Choose Purecowater?
As a distributor for top-tier filtration OEMs, Purecowater ensures you get the exact specification needed for your unique system. Whether you are upgrading from a filter press or sourcing replacements for an existing lenticular housing, we provide the technical expertise to optimize your filtration train.
If you are experiencing issues with throughput, clarity, or complex solids loading, contact us to discuss how ErtelAlsop Pak® technology can solve your liquid filtration problems.
Ready to optimize your filtration process?
Contact Purecowater today for a consultation or quote.