When it comes to addressing complex solid and liquid filtration challenges, the ErtelAlsop Pak® Lenticular Filters stand out as a premier solution for industrial applications. As a distributor for top-tier filtration technologies, Purecowater is proud to offer these versatile depth filter modules, designed to enhance operational efficiency and product quality across a wide range of industries.
What are Lenticular Pak® Cartridges?
ErtelAlsop Pak® depth filter cartridges—often referred to as lenticular modules—are an innovative alternative to traditional plate and frame filtration. Originally developed in the 1940s, this technology has evolved into a totally enclosed, leak-free system that combines the high filtration area of depth sheets with the convenience of a cartridge.
Each module consists of stacked filter cells (ranging from 5 to 18 cells) assembled into a single unit. The cells utilize ErtelAlsop’s proprietary media, such as MicroMedia® or AlphaMedia®, sealed using a patented process. The result is a robust filter stack that resembles a series of double convex lenses, providing structural integrity and high capacity.
Key Advantages
- Totally Enclosed System: Eliminates leakage and external contamination, ensuring a cleaner production environment compared to open plate and frame presses.
- High Solids Loading: The depth media structure provides a complex matrix of fibers and particles, allowing for exceptional retention of solids and haze.
- Rapid Change-Out: The “Pak” design allows operators to replace modules quickly, significantly reducing downtime and labor costs.
- Scalability: Available in 12-inch and 16-inch diameters with various cell counts to fit specific batch sizes and flow rate requirements.
Product Series and Media Options
Choosing the right media is critical for optimizing your filtration process. The Pak® cartridges are available in several distinct series to match your specific fluid chemistry.
Zeta-Pak® Series
The Zeta-Pak® is the workhorse of the lenticular line. Utilizing Micro-Media® composed of cellulose and Diatomaceous Earth (DE), it offers high flow rates and superior retention of ultra-fine particles via Zeta potential. It is ideal for:
- Biopharmaceuticals
- Beverage clarification (Spirits, Wine, Beer)
- Botanical extracts
Disc-Pak® Series
For applications where DE or perlite are not permitted, the Disc-Pak® is the optimal choice. Manufactured with 100% cellulose AlphaMedia®, these cartridges ensure that active ingredients are not stripped from the product. Typical applications include:
- Dielectric oils and coolants
- Syrups and heavy viscosity fluids
- Cosmetics and perfumes
Technical Specifications
The ErtelAlsop Pak® modules are designed to fit into a variety of housings and can replace competitive modules. Below are the standard specifications available through Purecowater.
| Feature | Specification Details |
|---|---|
| Diameters Available | 12-inch (30.5 cm) and 16-inch (40.6 cm) |
| Micron Ratings | Nominal retention from 0.25 to 15 microns |
| End Configurations | Flat Gasket or Double O-Ring |
| Core Material | Polypropylene (standard) or Stainless Steel (optional) |
| Gasket Material | EPDM, Viton, Silicone, Nitrile, etc. |
| Number of Cells | 5 to 18 cells per stack |
| Max Operating Temp | Dependent on gasket and media selection (consult for details) |
Housing Compatibility: Vertical and Horizontal
ErtelAlsop Pak® cartridges are compatible with both vertical and horizontal housing orientations. While vertical housings are common, the Horizontal “Lock and Load” design is particularly favored for its ergonomic benefits. It allows for single-person loading and unloading at waist height, minimizing product loss and improving operator safety.
Applications
These filters are engineered to serve a broad spectrum of markets. Whether you need to remove waxes from botanical extracts or polish distilled spirits, the lenticular format delivers consistent results.
- Food & Beverage: Removal of haze, yeast, and particulates in wine, spirits, and syrups.
- Pharmaceuticals: Clarification of broths and removal of activated carbon.
- Chemicals: Filtration of bulk chemicals, resins, and paints.
- Utilities: Filtering transformer oils and dielectric fluids.
For more information on sizing, media selection, or to request a quote for ErtelAlsop Pak® Lenticular Filters, please reach out to our team.
Sources: ertelalsop.com, clearsolutionscorp.com