Advanced Depth Filtration with ErtelAlsop Pak® Lenticular Cartridges
For industries requiring high-performance liquid filtration with minimal leakage and ease of use, ErtelAlsop Pak® Lenticular Filters represent the gold standard in depth filtration technology. As a distributor for top-tier filtration manufacturers, Purecowater is proud to offer these versatile modules to help you tackle complex solid and liquid filtration problems.
This guide explores the capabilities, specifications, and applications of the Pak® Lenticular series, designed to replace traditional plate and frame filters while maintaining superior particle retention.
What is a Lenticular Filter?
The ErtelAlsop Pak® cartridge—often referred to as a lenticular module—is a pre-assembled unit comprised of stacked depth filter cells. Each cell consists of two sheets of filter media (such as MicroMedia® or AlphaMedia®) sealed together at the edges. This design resembles a stack of double convex lenses (“lenticular”), providing a large surface area in a compact footprint.
Unlike open plate and frame systems, lenticular cartridges operate inside a sealed housing. This enclosed design eliminates edge leakage, ensures sanitary operation, and significantly reduces change-out time, making it a preferred choice for pharmaceuticals, food and beverage, and chemical processing.
Key Features and Benefits
- Zeta Potential: Many media options utilize electrokinetic potential (zeta potential) to attract and hold negatively charged particles, enhancing retention beyond simple mechanical sieving.
- Enclosed System: Prevents exposure to the environment and eliminates product loss due to leakage.
- Scalability: Available in 12-inch and 16-inch diameters with varying cell counts (5 to 18 cells) to match your flow rate and throughput requirements.
- High Solids Loading: The depth media matrix captures contaminants throughout the thickness of the pad, not just on the surface.
Technical Specifications
The versatility of the Pak® series lies in its wide range of configurations. Below are the standard specifications available through Purecowater.
| Feature | Specification Details |
|---|---|
| Diameter Options | 12 inch (30.5 cm) & 16 inch (40.6 cm) |
| Micron Ratings | Nominal retention from 0.25 µm to 15 µm |
| Number of Cells | Standard stacks: 9, 12, or 16 cells (Custom: 5–18) |
| End Cap Configurations | Flat Gasket or Double O-Ring (Code 3, Code 8 styles) |
| Core Material | Polypropylene (Standard), Stainless Steel (Optional) |
| Gasket Materials | EPDM, Nitrile, Viton, Silicone, PTFE Encapsulated |
Media Formulations
Selecting the right media is critical for your process. ErtelAlsop offers several proprietary formulations:
| Media Series | Composition | Best Application |
|---|---|---|
| MicroMedia® | Cellulose + Diatomaceous Earth (DE) / Perlite | Haze removal, fine particulate retention, high-efficiency filtration. |
| AlphaMedia® | 100% Cellulose (No inorganic aids) | Pharmaceuticals, dielectric oils, and applications where DE is prohibited. |
| MicroClear® | Immobilized Activated Carbon | Decolorization, odor removal, and organic contaminant reduction. |
Primary Applications
The robust construction of the Pak® Lenticular Filter makes it a “workhorse” across various industries.
1. Botanical Extracts & Hemp Oil
Lenticular modules are highly effective for winterization and wax removal. The MicroMedia® series, containing diatomaceous earth, efficiently traps waxes and lipids while allowing high flow rates, making it a staple in ethanol extraction workflows.
2. Food & Beverage
From distilled spirits to sugar syrups, these filters ensure clarity and stability. They filter out haze-causing proteins and particulates without affecting the flavor profile of the liquid.
3. Pharmaceuticals & Cosmetics
With pharmaceutical-grade options and non-toxic constituent materials, these filters meet rigorous validation standards for processing active pharmaceutical ingredients (APIs), perfumes, and high-purity water.
4. Chemicals & Utility Fluids
Ideal for filtering dielectric oils, insulating fluids, and industrial solvents where high solids loading capacity protects downstream equipment.
Comparison: Lenticular vs. Plate & Frame
While traditional plate and frame filters use similar media sheets, the lenticular format offers distinct operational advantages:
- Hygiene: The closed housing prevents external contamination.
- Efficiency: Change-outs take minutes rather than hours, reducing labor costs and downtime.
- Safety: Operators are not exposed to the fluid or dripping media sheets.
Get the Right Solution with Purecowater
Whether you need to remove waxes from botanical extracts or clarify industrial fluids, sizing the right automation and filtration system is critical. Purecowater is your manufacturer representative and OEM partner for Veolia, WTS, Engineered Solutions, and ErtelAlsop.
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Information verified from ertelalsop.com and clearsolutionscorp.com.