High-Efficiency Depth Filtration for Critical Applications
At Purecowater, we specialize in solving complex solid and liquid filtration challenges. Among our premier offerings are the ErtelAlsop Pak® Lenticular Filters. These depth filter modules effectively bridge the gap between traditional plate and frame filters and cartridge filtration, offering a scalable, user-friendly solution for industries ranging from pharmaceuticals to botanical extraction.
As a distributor for top-tier filtration manufacturers, Purecowater provides these advanced lenticular modules to help facilities improve throughput, retention efficiency, and operational safety.
What Are ErtelAlsop Pak® Filters?
The ErtelAlsop Pak® is a depth filter cartridge, often referred to as a lenticular module. It is constructed from multiple “cells”—essentially pairs of depth filter sheets (like Micro-Media® or AlphaMedia®) sealed together at the edges. These cells are stacked on a central core to form a robust, high-surface-area cartridge.
Unlike surface filters that only catch particles on the top layer, these depth filters utilize a thick matrix of fibers and filter aids (such as Diatomaceous Earth) to trap particles throughout the entire media. This structure allows for:
- High Solids Loading: The ability to hold significant amounts of particulate before fouling.
- Zeta Potential: Electrokinetic adsorption that captures sub-micron particles smaller than the mechanical rating of the filter.
- Leak-Tight Sealing: Configurations like the Double O-Ring ensure zero bypass.
Technical Specifications
The versatility of the Pak® system lies in its configurable nature. Below is a breakdown of the standard specifications available for these modules.
| Feature | Specification Detail |
|---|---|
| Diameter Options | 12-inch (30.5 cm) and 16-inch (40.6 cm) |
| Micron Ratings | 0.25 µm to 15 µm (Nominal) |
| Filter Media Types | Micro-Media® (Cellulose/DE/Perlite), AlphaMedia® (All-Cellulose), MicroClear® (Carbon) |
| End Configurations | Double O-Ring, Flat Gasket |
| Core Material | Polypropylene (Standard) |
| Gasket Materials | EPDM, Silicone, Viton, Buna-N |
| Cell Count | Typically 5 to 16 cells per module |
Key Applications and Industries
ErtelAlsop lenticular filters are the “workhorse” in many processing facilities. Their design makes them particularly suitable for applications requiring the removal of haze, waxes, lipids, and ultra-fine particulates.
Botanical Extracts & Chemical Processing
For botanical extraction, the Zeta-Pak® series is highly effective. The depth media, often impregnated with Diatomaceous Earth (DE), efficiently removes waxes and lipids that cause cloudiness in extracts. The high flow rate capabilities ensure that production bottlenecks are minimized.
Distilled Spirits & Food/Beverage
In the spirits industry, these filters are used for chill haze removal and polishing before bottling. The closed housing design of lenticular systems prevents evaporation of alcohol and protects the product from airborne contaminants, a significant advantage over open plate and frame presses.
Pharmaceuticals (API)
When processing Active Pharmaceutical Ingredients (APIs), the encapsulated nature of the Pak® module ensures operators are not exposed to potent compounds during changeouts. They are also used for catalyst recovery (e.g., carbon removal) and solvent filtration.
Why Choose Lenticular Modules?
Upgrading to or specifying ErtelAlsop Pak® cartridges offers several operational advantages:
- Ease of Use: Modules are easy to load and unload compared to loose filter sheets, significantly reducing downtime and labor.
- Scalability: The same media used in laboratory trials (e.g., MicroCap test capsules) scales directly to production-sized 12″ and 16″ Pak® modules.
- Product Integrity: The available double O-ring seal ensures that no unfiltered liquid bypasses the media, guaranteeing consistent filtrate quality.
Solve Your Filtration Problems with Purecowater
Whether you require a specific micron rating for fine polishing or a high-capacity filter for solids removal, Purecowater can help you select the correct ErtelAlsop configuration for your system. We distribute a wide range of filtration solutions, including Veolia, WTS, and Fil-trek products, ensuring your facility operates at peak efficiency.
For pricing, lead times, or technical consultation on sizing a lenticular housing for your process, reach out to our team today.