ErtelAlsop Pak® Lenticular Filters: High-Performance Depth Filtration Solutions

Advanced Depth Filtration for Industrial & Sanitary Applications

For industries requiring superior particulate retention and high-throughput clarification, ErtelAlsop Pak® Lenticular Filters represent the gold standard in depth filtration technology. As a robust alternative to traditional plate and frame filters, these lenticular cartridges offer a totally enclosed, leak-free solution that simplifies operations while maximizing product quality. Purecowater is proud to distribute these high-efficiency modules to tackle your toughest solid and liquid filtration challenges.

What Are Pak® Lenticular Filters?

The Pak® Lenticular Filter (also known as a lenticular module) consists of stacked filtering cells. Each cell is constructed from a pair of depth filter media sheets—such as the renowned MicroMedia® or AlphaMedia® series—sealed at the edges using a patented polypropylene process. This design mimics a stack of double convex lenses, creating a large surface area within a compact footprint [ertelalsop.com].

These filters are designed to fit into totally enclosed housings, significantly reducing fluid loss and exposure compared to open plate and frame systems. This makes them ideal for handling costly ingredients, hazardous solvents, or applications requiring strict sanitary conditions.

Key Features and Technologies

• Zeta Potential Retention: Many Pak® modules, such as the Zeta-Pak®, are formulated with filter aids like Diatomaceous Earth (DE). This provides a positive electrokinetic charge (zeta potential) that attracts and holds ultra-fine, negatively charged particles smaller than the mechanical pore size [clearsolutionscorp.com].
• High Solids Loading: The depth media matrix captures contaminants throughout the thickness of the pad, not just on the surface, allowing for high turbidity reduction and longer service life.
• Versatile Configurations: Available in 12-inch and 16-inch diameters with various cell counts (typically 5 to 16 cells) to match flow rate requirements.
• Chemical Compatibility: Constructed with polypropylene supports and EPDM gaskets (standard), these filters are compatible with a wide range of solvents and chemicals used in extraction and processing [clearsolutionscorp.com].

Technical Specifications

Below is a summary of the standard specifications for ErtelAlsop Pak® Lenticular Filters, helping you identify the right fit for your process.

Feature	Specification Details
Micron Ratings	Nominal ratings from 0.25 µm to 15.0 µm (Commonly 1.0, 2.5, 5.0 µm)
Available Diameters	12 inch (30.5 cm) & 16 inch (40.6 cm)
End Configurations	Flat Gasket, Double O-Ring
Filter Media Options	MicroMedia® (DE/Cellulose), AlphaMedia® (Cellulose), MicroClear® (Carbon)
Core Material	Polypropylene
Gasket Material	EPDM (Standard)

Primary Applications

The ErtelAlsop Pak® series is a “workhorse” across multiple industries due to its adaptability and efficiency.

• Botanical Extracts: Highly effective for “winterization” or wax removal. The DE media efficiently removes lipids and waxes while the high surface area maintains flow rates [clearsolutionscorp.com].
• Pharmaceuticals (API): utilized for catalyst removal (e.g., carbon catalyst removal from solvent-based solutions) and general clarification [ertelalsop.com].
• Food & Beverage: Clarification of distilled spirits, syrups, flavorings, and hazes in beverages without affecting taste or odor.
• Industrial Chemicals: Filtration of insulating oils, silicone production, and specialty chemicals.
• Cosmetics: Purification of oils, lotions, and perfumes.

Housing Integration

For optimal performance, these cartridges are used in Lenticular Filter Housings. ErtelAlsop offers these in vertical (domed) or horizontal configurations. The horizontal design, often featuring a “Lock and Load” system, allows for single-person locking and loading of cartridges at waist height, eliminating the need for overhead hoists and improving safety [ertelalsop.com].