Introduction to ErtelAlsop Pak® Lenticular Filters
In the world of industrial liquid filtration, efficiency and reliability are paramount. For facilities looking to upgrade from messy plate and frame filters or those requiring superior particle retention in a closed system, the ErtelAlsop Pak® Lenticular Filter stands out as a premier solution. As a trusted distributor, Purecowater provides these high-performance depth filter modules to help industries tackle complex solid and liquid filtration challenges.
The ErtelAlsop Pak® cartridge—often referred to as a lenticular module—combines the proven filtration mechanism of depth media with the convenience of a modular cartridge design. Whether you are processing botanical extracts, distilled spirits, or pharmaceuticals, these filters offer a scalable and sanitary solution.
How Lenticular Technology Works
The term “lenticular” refers to the lens-like shape of the filter cells. A Pak® module is constructed from multiple stacked filter cells, ranging typically from 5 to 18 cells per unit. Each cell consists of a pair of depth filter sheets (such as Micro-Media® or Alpha-Media®) sealed at the edges using a patented polypropylene molding process.
This design allows liquid to flow from the outside of the module, through the depth media, and into the central core. The result is a high surface area in a compact footprint, allowing for:
- High Solids Loading: The depth matrix captures particles throughout the thickness of the media, not just on the surface.
- Zeta Potential: Positively charged media helps attract and retain negatively charged ultra-fine particles, including haze and colloids.
- Lead-Free & Leak-Free: Unlike traditional plate and frame presses which can leak, lenticular cartridges are housed in sealed vessels, ensuring a clean and sanitary operation.
Key Specifications and Features
ErtelAlsop Pak® filters are versatile and compatible with a wide range of industrial housings. Below is a breakdown of the standard specifications available through Purecowater.
| Feature | Specification Details |
|---|---|
| Diameters Available | 12 inch (30.5 cm) and 16 inch (40.6 cm) |
| Micron Ratings | 0.25 µm to 15 µm (Nominal) |
| End Configurations | Double O-Ring, Flat Gasket |
| Core Material | Polypropylene |
| Gasket Material | EPDM (Standard), others available upon request |
| Filter Media Options | Cellulose, Diatomaceous Earth (DE), Perlite, Activated Carbon |
Media Formulations
One of the primary advantages of the Pak® system is the ability to choose media tailored to your specific application:
- Zeta-Pak® (Micro-Media®): Contains Diatomaceous Earth (DE) and cellulose. Ideal for haze removal and polishing. Commonly used in 1.0 µm, 2.5 µm, and 5.0 µm ratings [store.clearsolutionscorp.com].
- Bio-Pak®: Pharmaceutical grade media for critical applications.
- AquaKv-Pak®: Designed for the removal of water and carbon from insulating oils [ertelalsop.com].
- Disc-Pak®: Utilizes paper media for basic particulate removal.
Common Applications
Because of their robust construction and range of media, ErtelAlsop lenticular filters are used across diverse sectors.
1. Botanical Extract Filtration
In the extraction industry, removing waxes, lipids, and fine particulates is critical for product clarity. The Micro-Media® formulation containing DE is particularly effective here, as the porous cake acts as a sieve to trap lipids without affecting the odor or taste of the liquid.
2. Food & Beverage
From distilled spirits to syrups, these filters provide the polish necessary for a shelf-stable product. They effectively reduce haze and capture spoilage organisms.
3. Chemical & Utility
Specialty chemical manufacturers use these filters for catalyst recovery and solvent cleaning. Additionally, electric utilities utilize the AquaKv-Pak® to recondition transformer oils by removing moisture and impurities.
Why Choose ErtelAlsop Pak® Over Traditional Methods?
Many facilities still rely on plate and frame filters, which can be labor-intensive and prone to leakage. Switching to a lenticular Pak® system offers:
- Reduced Downtime: Change-outs take minutes rather than hours.
- Operator Safety: The enclosed housing reduces exposure to process fluids.
- Cost Efficiency: High surface area and dirt-holding capacity increase the throughput per filter.
Ready to optimize your filtration process?
Whether you need to replace existing modules or size a new housing, Purecowater provides the technical expertise and supply chain reliability you need.