Advanced Depth Filtration for Critical Applications
Purecowater is proud to distribute ErtelAlsop Pak Lenticular Filters, a premier solution for industries requiring high-efficiency particulate removal and fluid clarification. Originally developing the lenticular format in the 1940s, ErtelAlsop has continuously refined this technology to offer a totally enclosed, leak-free alternative to traditional plate and frame filtration.
Whether you are operating in the pharmaceutical, food and beverage, or chemical sectors, these modules facilitate seamless scalability and superior product integrity. As a distributor/OEM for major filtration brands, Purecowater can integrate these lenticular packs into your existing process or custom systems.
The Evolution from Plate and Frame
Lenticular technology bridges the gap between traditional sheet filtration and modern cartridge convenience. While plate and frame presses are effective, they often suffer from drip loss and long change-out times.
The Pak® Lenticular Cartridge solves these issues by housing the same high-quality depth filter media inside a sealed module. This design allows you to transfer existing process specifications from plate and frame setups directly to a lenticular format without validating new media types. The result is an operator-friendly system that drastically reduces downtime and eliminates leakage.
Key Features of ErtelAlsop Pak Filters
- Totally Enclosed Design: Protects the product from external contamination and protects operators from exposure to fluids.
- Scalable Formats: Available in 12-inch and 16-inch diameters to suit various flow rates and batch sizes.
- Rapid Change-Out: Pre-assembled packs allow for quick installation and disposal compared to loose filter sheets.
- High Solids Loading: Depth media structure captures particles throughout the matrix, not just on the surface.
Spotlight: The Zeta-Pak® Cartridge
A standout within the product line is the Zeta-Pak®. These modules are manufactured with Micro-Media® containing Diatomaceous Earth (DE) and perlite. This combination creates a rigid, porous cake that excels at retaining ultra-fine particles and removing haze.
The Zeta-Pak® is particularly valued for its Zeta Potential—the electrokinetic charge that attracts and holds negatively charged contaminants (like bacteria or endotoxins) that might otherwise pass through the mechanical pores of the filter.
Technical Specifications
For engineers and plant managers looking to spec these filters, the adaptability of the ErtelAlsop line is key. Below are the standard configurations available through Purecowater.
| Specification | Details |
|---|---|
| Diameters | 12″ (1.8 m² area) and 16″ (3.6 m² area per high-capacity module) |
| End Cap Configurations | Flat Gasket (Standard) or Double O-Ring (222/226 style) |
| Core Material | Polypropylene (Standard), Stainless Steel (Optional) |
| Gasket Materials | EPDM (Standard), Buna-N, Viton, Silicone |
| Filter Media Components | Cellulose, Diatomaceous Earth (DE), Perlite, Wet Strength Resin |
Available Micron Ratings
To ensure precise retention for your specific liquid stream, the Pak® modules are available in a wide nominal rating range:
| Fine Filtration | Clarification | Coarse Filtration |
|---|---|---|
| 0.25 μm | 1.0 μm | 5.0 μm |
| 0.45 μm | 2.5 μm | 10.0 μm |
| 0.8 μm | 15.0 μm |
Common Applications
The versatility of the ErtelAlsop Pak allows it to serve as a primary clarifier or a pre-filter for membrane protection in the following industries:
- Botanical Extraction: Highly effective for dewaxing and lipid removal in ethanol extraction processes due to ease of use and high flow rates.
- Pharmaceuticals: Clarification of syrups, removal of carbon fines, and protection of downstream sterile filters.
- Food & Beverage: Polishing of distilled spirits, haze removal in beer and wine, and corn syrup filtration.
- Utility (Transformer Oil): Removal of carbon and moisture from dielectric fluids in the electric utility sector.
- Cosmetics: Filtration of perfumes, lotions, and oils to ensure clarity and product stability.
Get Started with Purecowater
Purecowater tackles complex liquid filtration problems by leveraging top-tier equipment like the ErtelAlsop Pak Lenticular series. Whether you need replacement modules or a complete housing assembly (Vertical, Horizontal, or Sanitary), our team is ready to assist.
Need help selecting the right micron rating or media configuration?
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