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

Optimize your liquid filtration processes with the ErtelAlsop Pak® Lenticular Filters, now available through Purecowater.

For industries ranging from pharmaceuticals to botanical extraction, the transition from traditional plate and frame filtration to a more enclosed, sanitary, and efficient system is critical. The ErtelAlsop Pak® Lenticular Filter series provides the ultimate solution, combining superior depth filtration technology with user-friendly cartridge designs.

What are ErtelAlsop Pak® Lenticular Filters?

ErtelAlsop Pak® cartridges, often referred to as lenticular filter modules, are depth filter stacks designed to act as a direct alternative to flat filter sheets used in plate and frame presses. While they utilize the same high-quality filter media (such as MicroMedia®, AlphaMedia®, and MicroClear®), they package it in a totally enclosed, easy-to-handle cartridge format.

The term “lenticular” refers to the shape of the filter cells. Each “Pak” is assembled from varying numbers of stacked filter cells (typically 5 to 18), which resemble a stack of double convex lenses. This design allows for a massive amount of surface area and solids-loading capacity within a compact housing.

Key Benefits and Features

• Enclosed System: Eliminates leakage and exposure to the atmosphere, ideal for hazardous fluids or sanitary applications.
• Scalability: Available in 12-inch and 16-inch diameters with over 300 precision die configurations.
• High Solids Loading: The depth media structure traps particles throughout the matrix, not just on the surface, extending service life.
• Wide Retention Range: Nominal retention ratings range from 0.25 microns up to 15 microns.
• Rapid Change-out: Reduces downtime significantly compared to manually dressing a plate and frame press.

Technical Specifications

The Pak® filters are engineered for versatility. Below is a breakdown of the standard specifications available for industrial and sanitary configurations.

Specialized Configurations

Zeta-Pak®: The Workhorse

The Zeta-Pak® is the standard for most industrial and food & beverage applications. It incorporates wet-strength resins and silica filter aids to create a matrix with a positive Zeta Potential, enhancing the capture of ultra-fine negatively charged particles like haze or colloids.

Bio-Pak®: For Sanitary & Pharmaceutical Needs

For applications requiring the highest purity, the Bio-Pak® module offers a pharmaceutical-grade solution. Unlike standard modules that may use stainless steel straps, the Bio-Pak uses a rigid polypropylene core and Double O-Ring seals. This ensures:

• Positive sealing between cartridges and housing.
• No bypass.
• Compatibility with sanitary filter housings (no internal threads or hard-to-clean crevices).

Industry Applications

This filtration technology is ubiquitous in industries where product clarity and purity are paramount.

Why Choose Purecowater?

As a distributor and OEM for top filtration brands like Fil-trek and Veolia, Purecowater understands the nuances of complex fluid streams. Whether you need a horizontal housing for easy loading or a sanitary vertical housing for a biotech skid, we can size and supply the correct ErtelAlsop solution for your facility.