Introduction to ErtelAlsop Pak® Lenticular Cartridges
For industrial applications requiring high-efficiency liquid filtration and solids retention, ErtelAlsop Pak® Lenticular Filters offer a superior solution. As a versatile depth filtration system, these cartridges combine the proven filtration performance of plate and frame technology with the convenience and enclosed design of a cartridge housing. Whether you are filtering pharmaceutical ingredients, distilled spirits, or botanical extracts, the Pak® system is designed to streamline your process while ensuring exceptional filtrate quality.
At Purecowater, we distribute top-tier filtration solutions, including the ErtelAlsop Pak® line, to help you tackle your most challenging solid and liquid separation problems.
What Are Lenticular Filters?
Lenticular filters, also known as depth filter modules, consist of individual filter cells stacked onto a central core. Each cell is constructed from two sheets of depth filter media sealed at the edges. This design creates a module that resembles a stack of double convex lenses (hence “lenticular”).
The ErtelAlsop Pak® takes this design further by utilizing a patented process to seal the edges with polypropylene, forming a robust, self-contained unit. This format offers significant advantages over traditional filter presses:
- Closed System: Eliminates leakage and external contamination, making it ideal for sanitary and hazardous applications.
- Rapid Change-out: Modules can be replaced in a fraction of the time required to dress a plate and frame filter.
- Scalability: Available in 12-inch and 16-inch diameters with varying cell counts to match your batch size and flow rate requirements.
Key Specifications and Data
ErtelAlsop Pak® cartridges are available with a wide range of media grades and configurations to suit different chemical compatibilities and retention needs.
| Feature | Specification |
|---|---|
| Diameters Available | 12-inch (30.5 cm) and 16-inch (40.6 cm) |
| Micron Retention Ratings | 0.25 µm to 15 µm (Nominal) |
| Number of Cells | Typically 5 to 18 cells per module |
| End Cap Configurations | Flat Gasket / Double O-Ring |
| Gasket Materials | EPDM, Silicone, Viton, Buna-N |
| Core Material | Polypropylene |
Depth Filter Media Options
The performance of the Pak® cartridge is defined by the media inside. ErtelAlsop offers several proprietary media formulations:
- MicroMedia® (Zeta-Pak®): Contains cellulose, diatomaceous earth (DE), or perlite, along with a wet-strength resin. It exhibits a positive Zeta potential, enhancing the capture of ultrafine particles and haze.
- AlphaMedia®: A pure cellulose media for applications requiring low extractables or where inorganic filter aids are not desired.
- MicroClear®: Integrates activated carbon for decolorization and impurity adsorption alongside particulate filtration.
Applications and Industries
Due to their high solids loading capacity and versatility, ErtelAlsop Lenticular Filters are the “workhorse” in many industries. They are commonly used for clarifying liquids, polishing final products, and protecting expensive downstream membrane filters.
| Industry | Typical Applications |
|---|---|
| Food & Beverage | Wine polishing, spirits filtration, syrup clarification, haze removal from juices. |
| Pharmaceuticals | Large volume parenterals (LVP), API processing, post-fermentation broth clarification. |
| Botanical Extracts | Winterization, wax removal, lipid removal from hemp/cannabis oil. |
| Chemicals & Utilities | Transformer oil purification, specialty chemical production, silicone oil filtration. |
| Cosmetics | Perfume clarification, lotion processing, essential oils. |
Why Choose ErtelAlsop Pak®?
Customers prefer the Pak® format because it simplifies operations without compromising quality. The complex matrix of fibers in the depth media provides a tortuous path for fluid, ensuring highly efficient particle retention. Furthermore, the ability to fit over 300 different precision dies means there is likely a configuration that fits your existing housing, or Purecowater can supply a new sanitary or industrial housing solution to match.
Whether you need to remove particulates from a fine spirit or clarify a chemical slurry, the ErtelAlsop Pak® delivers reliable throughput and consistent filtrate quality.
Get a Quote Today
Are you looking to upgrade your current filtration system or replace existing modules? Purecowater provides expert guidance and competitive pricing on ErtelAlsop products and systems.