Introduction to Lenticular Filtration
For industries requiring superior particulate retention and high solids loading capacity, ErtelAlsop Pak® Lenticular Filters provide a robust solution. These depth filter modules—often referred to as "Paks"—are designed (o replace standard plate and frame filters or expensive cartridge systems. They utilize a stacked disc configuration that combines the benefits of depth filtration media with the convenience of a closed-system cartridge format.
At Purecowater, we supply these advanced filtration modules to tackle complex solid and liquid separation challenges across the Life Sciences, Food & Beverage, and Chemical utility sectors. Whether you are filtering botanical extracts or insulating oils, the Pak® series (including Zeta-Pak® and Micro-Media®) offers scalability and reliability.
How ErtelAlsop Pak® Filters Work
The Lenticular Pak® cartridge is constructed from multiple filter cells stacked on a central polypropylene core. Each cell consists of two discs of depth filter media sealed at the edges. This design resembles a stack of double convex lenses, creating a large surface area within a compact footprint. Liquid passes through the media matrix, where contaminants are trapped via mechanical sieving and electrokinetic adsorption (zeta potential).
Key Advantages
- High Solids Loading: The depth media structure allows the filter to hold significantly more contaminants than surface filters.
- Scalability: Available in 12-inch and 16-inch diameters with varying cell counts (5 to 18 cells) to fit specific housing requirements [ertelalsop.com].
- Leak-Free Design: Edge sealing technology minimizes bypass, ensuring product integrity.
- Versatility: Compatible with various gaskets (EPDM, Platinum Silicone, Viton) and media types.
Technical Specifications
The Pak® modules are customizable to fit specific process conditions. Below is a breakdown of the common specifications available for industrial and pharmaceutical applications.
| Feature | Specification Details |
|---|---|
| Micron Ratings | 0.25 µm to 15 µm (Nominal) [ertelalsop.com] |
| Diameters | 12 inch (30.5 cm) & 16 inch (40.6 cm) |
| Core Material | Polypropylene (Standard) |
| Media Options | Cellulose, Diatomaceous Earth (DE), Perlite, Activated Carbon |
| End Configuration | Double O-Ring, Flat Gasket [store.clearsolutionscorp.com] |
| Operating Temp | Up to 180°F (82°C) depending on housing/media |
Configuration and Media Types
Choosing the right media is critical for optimal filtration performance. ErtelAlsop offers several proprietary media series:
- Zeta-Pak® (Micro-Media®): The "workhorse" of the series. These contain cellulose and Diatomaceous Earth (DE), providing excellent haze removal and high zeta potential for capturing ultra-fine particles. They are ideal for beer, wine, and spirits filtration [store.clearsolutionscorp.com].
- AlphaMedia™: A pure cellulose media (no DE) used where inorganic extractables must be minimized.
- MicroClear®: Incorporates activated carbon for decolorization and odor removal without the mess of loose carbon powder.
- AquaKv-Pak®: specifically designed for the removal of water and moisture from dielectric fluids and insulating oils [ertelalsop.com].
Applications and Industry Use Cases
Due to their rugged construction and high efficiency, these filters are used across diverse industries.
| Industry | Application |
|---|---|
| Botanical Extraction | Removal of waxes, lipids, and biomass from solvent-based extracts (ethanol, CO2). High flow rates simplify winterization processes [store.clearsolutionscorp.com]. |
| Pharmaceuticals | Clarification of syrups, removal of catalysts (e.g., platinum recovery), and processing of API solvent solutions. |
| Food & Beverage | Polishing distilled spirits, haze removal in fruit juices, and sugar syrup filtration. |
| Chemical Utility | Filtering transformer oils and circuit breaker fluids to remove moisture and particulate matter. |
Contact Purecowater for Filtration Solutions
ErtelAlsop Pak® lenticular filters provide the clarity and reliability required for today’s demanding production environments. Whether you are upgrading an existing housing or designing a new filtration skid, Purecowater can assist with sizing and selection.
Need a quote for Lenticular Filters or Housing Units?
Contact Us Today