ErtelAlsop Pak Lenticular Filters: Efficiency & Scalability in Depth Filtration

Introduction to ErtelAlsop Pak® Lenticular Filters

For industrial applications requiring superior retention efficiencies and high solids loading capacity, ErtelAlsop Pak® Lenticular Filters stand out as a premier solution. As a scalable depth filtration system, these modules combine the precision of sheet filtration with the convenience of a cartridge format.

At Purecowater, we supply these advanced filtration modules to industries ranging from Food & Beverage to Pharmaceuticals and Botanical Extraction. Whether you are removing waxes from extracts or polishing distilled spirits, the Pak® lenticular design offers a robust, enclosed system that simplifies operations while maximizing throughput.

How Lenticular Depth Filtration Works

The ErtelAlsop Pak® cartridge is constructed from multiple depth filter sheets (cells) stacked seamlessly. Each cell is composed of a pair of media sheets—such as the renowned Micro-Media® or Zeta-Pak®—bonded at the edges.

This "lenticular" (lens-shaped) structure creates a tortuous path for fluids. As liquid passes through the media matrix, particles are trapped not just on the surface but throughout the depth of the filter cake. This design provides:

• High Zeta Potential: Excellent for capturing ultra-fine particles and haze.
• High Dirt Holding Capacity: The porous cake structure absorbs significant particulate loads before blinding.
• Scalability: Available in 12-inch and 16-inch diameters with varying cell counts (5 to 18 cells) to match process volumes.

Key Product Series

Depending on your specific removal needs, different media formulations are available inside the Pak format:

Series Name	Primary Media Composition	Best Use Case
Zeta-Pak®	Cellulose, Filter Aid (DE/Perlite)	The "Workhorse" for general pharmaceutical and chemical filtration. Excellent haze removal.
Micro-Media®	Cellulose, Diatomaceous Earth (DE)	Effective removal of solids, waxes, and lipids. High flow rates.
AlphaMedia™	Pure Cellulose (No DE)	Applications where mineral filter aids are not permitted.
MicroClear®	Immobilized Activated Carbon	Color correction and odor removal without loose carbon dust.

Applications and Industries

The versatility of ErtelAlsop lenticular filters makes them a staple in rigorous processing environments. According to technical data from clearsolutionscorp.com, these modules are particularly effective in botanical extractions for lipid removal.

• Botanical Extraction: Efficiently removes waxes, lipids, and fine particulates from ethanol or hydrocarbon extracts.
• Distilled Spirits: Polishing filtration to ensure clarity and stability in shelf-ready products.
• Pharmaceuticals (API): Clarification of solvents and intermediates.
• Cosmetics: Filtration of perfumes, lotions, and oils.
• Utility Oils: Removal of water and carbon from transformer and circuit breaker oils (AquaKv-Pak®).

Technical Specifications

Ensure you select the correct configuration for your housing. The Pak® cartridges feature polypropylene cores and straps for chemical resistance.

Micron Ratings (Nominal)	0.25 µm – 15 µm
Diameters Available	12" (30.5 cm) and 16" (40.6 cm)
End Cap Configurations	Flat Gasket (DOE), Double O-Ring (222/226)
Gasket Materials	EPDM, Neoprene, Buna-N, Viton, Silicone
Core Material	Polypropylene

Why Choose ErtelAlsop Pak Filters?

1. Easy Change-Outs: Unlike plate and frame filter presses which require manual loading of individual sheets, lenticular modules can be loaded and unloaded quickly as a single unit. This reduces downtime and labor costs.

2. Enclosed Hygienic System: The modules operate inside sealed housings, preventing exposure to the atmosphere. This is critical for alcohol-based filtration or applications requiring high sanitary standards.

3. Flexibility: With over 300 grades of media available, we can fine-tune the filtration to your specific retention requirements.

At Purecowater, we help you navigate these options to find the perfect match for your process.