ErtelAlsop Pak® Lenticular Filters: The Efficient Solution for Depth Filtration

Introduction to ErtelAlsop Pak® Lenticular Filters

In the world of industrial liquid filtration, efficiency and purity are paramount. For facilities grappling with the messy maintenance of traditional plate and frame filters, ErtelAlsop Pak® Lenticular Filters represent a significant leap forward. Purecowater is proud to supply these advanced depth filtration modules, designed to tackle solid and liquid filtration problems with superior ease and reliability.

The Pak® Lenticular Cartridges (also known as modules) combine the proven filtration performance of depth filter sheets with the convenience of a totally enclosed, disposable cartridge system. This design eliminates the leakage and exposure issues often associated with open presses, making them an ideal choice for industries ranging from pharmaceuticals to food and beverage.

How Lenticular Technology Works

The term “lenticular” refers to the shape of the filter cells. These cartridges are constructed from stacked discs (cells), each consisting of a pair of depth filter sheets sealed at the edges. This assembled unit resembles a stack of double convex lenses.

Fluid enters the housing and surrounds the cartridge, passing through the filter media into the central core. This depth filtration mechanism captures particles not only on the surface but also within the tortuous path of the media matrix, allowing for high solids loading capacity and exceptional particle retention.

Key Advantages

• Enclosed System: Prevents fluid loss and protects operators from exposure to process fluids.
• Rapid Changeout: Modules can be replaced in minutes compared to the hours required for plate and frame presses.
• Scalability: Available in 12-inch and 16-inch diameters to fit various housing sizes.
• Versatile Media: Compatible with various filter media grades for specific chemical and physical requirements.

Technical Specifications and Configurations

ErtelAlsop Pak® cartridges are highly customizable to fit precise process needs. Whether you require retention of ultra-fine particles or high-flow clarification, there is a configuration available.

Feature	Specification Details
Diameters	12 inch (30.5 cm) & 16 inch (40.6 cm)
Number of Cells	Standard stacks range from 5 to 18 cells
Micron Retention	Nominal ratings from 0.25 µm to 15+ µm
Core Material	Polypropylene
End Cap Configuration	Flat Gasket (DOE) or Double O-Ring (SOE)
Gasket Material	EPDM (Standard), Silicone, Viton, Buna-N
Max Operating Temp	Typically up to 176°F (80°C) depending on media

Filter Media Options

The performance of the Pak® cartridge is driven by the choice of media. Purecowater offers ErtelAlsop cartridges with several distinct media formulations:

1. Micro-Media® (Cellulose + DE + Resin)

This is the standard for critical applications. It incorporates Diatomaceous Earth (DE) and high-purity cellulose with a wet strength resin. The DE provides a rigid filter cake with high void volume, making it excellent for haze removal and fine particulate retention.

2. AlphaMedia™ (100% Cellulose)

Ideal for applications where inorganic aids like DE are not permitted. AlphaMedia is used extensively in transformer oils, dielectric fluids, and certain organic applications. It offers a wide range of retention without adding mineral content to the filtrate.

3. MicroClear® (Activated Carbon)

These modules are impregnated with activated carbon, allowing for adsorption of color, odor, and impurities in a single pass. This eliminates the need for handling loose bulk carbon powder, significantly improving facility cleanliness and safety.

Industry Applications

ErtelAlsop Lenticular Filters are versatile workhorses used across multiple sectors. Their enclosed design makes them particularly suitable for high-value or hazardous liquids.

Industry	Common Uses
Pharmaceuticals	API filtration, serum clarification, removal of activated carbon.
Botanical Extraction	Winterization, dewaxing, and lipid removal in ethanol extraction processes.
Food & Beverage	Clarification of distilled spirits, syrups, soft drinks, and flavorings.
Chemicals & Utilities	Filtration of dielectric oils, varnishes, and correcting solution turbidity.
Cosmetics	Perfume polishing and filtration of essential oils.

Why Partner with Purecowater?

Purecowater is not just a distributor; we are problem solvers for solid and liquid filtration. Whether you are retrofitting an existing process or designing a new filtration skid, our team can help you select the exact number of cells, media grade, and housing configuration to maximize your throughput and minimize downtime.

ErtelAlsop Pak® Lenticular Filters provide the reliability you need, and Purecowater provides the expertise to ensure they work for you.