At Purecowater, we pride ourselves on providing top-tier filtration solutions for complex liquid processing challenges. As a distributor for industry leaders like Veolia, LG, and Fil-trek, we are excited to highlight the ErtelAlsop Pak® Lenticular Filter. Designed for versatility and high-performance depth filtration, this product is the “workhorse” for industries ranging from pharmaceuticals to botanical extraction.
What is the ErtelAlsop Pak Lenticular Filter?
The ErtelAlsop Pak® is a depth filter module assembled from stacked lenticular cells. Unlike surface filters that trap particles only on the top layer, these modules utilize a thick, complex matrix of filter media to trap contaminants throughout the entire depth of the cartridge. This design maximizes the surface area and solids-holding capacity within a compact footprint.
Constructed typically in 12-inch (30.5 cm) or 16-inch (40.6 cm) diameters, these modules are an excellent alternative to messy plate and frame filter presses. They offer a totally enclosed, leak-free system that is safer for operators and protects the product from environmental exposure.
Key Benefits and Features
The Zeta-Pak® and other variations in this line are engineered to solve specific filtration headaches. Here is why facilities switch to the Pak® system:
- High Zeta Potential: Many formulations, such as the Micro-Media®, possess a positive electrokinetic charge (zeta potential). This attracts and holds negatively charged ultra-fine particles that are smaller than the filter’s nominal micron rating.
- Scalability: With over 300 precision dies, these units fit virtually any housing. You can easily scale from pilot testing to full production.
- Closed-Loop System: The enclosed housing design effectively eliminates leakage and minimizes exposure to hazardous solvents or valuable product loss.
- User-Friendly Maintenance: Changing out a Pak module takes a fraction of the time required to dress a traditional plate and frame press, significantly reducing downtime.
Technical Specifications
The Pak® cartridges are highly customizable. Below are the standard specifications available for industrial and sanitary applications.
| Feature | Specification |
|---|---|
| Available Diameters | 12 inch / 16 inch |
| Micron Ratings | 0.25 µm – 15 µm |
| Core Material | Polypropylene (Standard) or Stainless Steel Straps |
| End Cap Styles | Flat Gasket, Double O-Ring |
| Filter Type | Depth Filtration (Nominal Rating) |
| Gasket Materials | EPDM, Viton, Buna-N, Neoprene, Silicone, Teflon Encapsulated |
Media Formulations
ErtelAlsop offers a variety of media compositions to suit distinct chemical compatibility and filtration goals. Choosing the right media is critical for optimal throughput and clarity.
| Media Series | Composition | Primary Application |
|---|---|---|
| Micro-Media® | Cellulose, Wet Strength Resin, Diatomite/Perlite | Critical haze removal, high solids loading, haze reduction. |
| AlphaMedia® | 100% Cellulose | Applications requiring low extractables or where silica/resin is not permitted. |
| MicroClear® | Immobilized Activated Carbon | Decolorization and odor removal without loose carbon powder. |
| ZetaDri-Pak® | Water Absorbing Media | Removal of free and emulsified water from oils (transformer oils, silicones). |
Common Applications
Due to the robust construction and variety of media, the Pak Lenticular Filter is used across widely varied sectors:
- Botanical Extracts: Efficient removal of waxes, lipids, and particulates during winterization. Activated carbon grades are perfect for color remediation.
- Pharmaceuticals & BioTech: Upstream and downstream clarification, including plasma fractionation and bulk culture media filtration.
- Food & Beverage: Polishing filtration for distilled spirits, syrups, and beverages to ensure brilliance and stability.
- Chemicals & Utilities: Reconditioning dielectric fluids and transformer oils by removing moisture and carbonized particulate.
Whether you are performing dewaxing on botanical extracts or polishing industrial oils, the ErtelAlsop Pak® provides a scalable, clean, and efficient solution.
Need help selecting the right micron rating or media type?
Purecowater can assist you in configuring the perfect depth filtration system for your facility.