Advanced Depth Filtration with ErtelAlsop Pak® Lenticular Technology
For industries requiring high-purity liquid filtration without the maintenance challenges of traditional plate and frame presses, the ErtelAlsop Pak® Lenticular Filter represents a superior solution. As a premier distributor and OEM partner, Purecowater provides these advanced depth filtration modules to tackle complex solid and liquid separation challenges.
The Pak® Lenticular Cartridge format, originally invented by the ErtelAlsop predecessors, combines the robust filtration capability of depth media with the convenience of an enclosed, leak-free cartridge system. Designed for critical applications in pharmaceuticals, food and beverage, and chemical processing, these filters offer high solids loading capacity and exceptional particle retention.
Why Choose Lenticular Filters Over Plate and Frame?
While plate and frame filters have long been the industry standard for depth filtration, they often suffer from edge leakage and labor-intensive changeouts. The ErtelAlsop Pak® design solves these issues by enclosing the media cells within a lenticular stack.
- Zero Edge Leakage: The enclosed design ensures a sanitary environment and prevents product loss.
- Rapid Changeout: Modules can be replaced in minutes rather than hours, significantly reducing downtime.
- Scalability: Available in 12-inch and 16-inch diameters with varying cell counts to match your flow rate requirements.
Key Technical Specifications
The versatility of the Pak® series lies in its wide range of configurations. Whether you need the electrokinetic adsorption properties of the Zeta-Pak® or the carbon-impregnated efficiency of Disc-Pak®, there is a configuration for every process fluid.
| Specification | Details |
|---|---|
| Micron Ratings | 0.25 µm to 15 µm (Nominal) |
| Module Diameters | 12 inch (30 cm) and 16 inch (40 cm) |
| Core Material | Polypropylene (Standard) |
| Gasket Material | EPDM (Standard), others available upon request |
| End Cap Configurations | Flat Gasket, Double O-Ring |
| Cell Count | Typically 16 cells per stack (variable based on height) |
| Media Options | Cellulose, Diatomaceous Earth (DE), Perlite, Activate Carbon |
Spotlight: The Zeta-Pak® Advantage
The Zeta-Pak® module is the workhorse of the ErtelAlsop line. It incorporates Micro-Media® usually containing cellulose and filter aids like Diatomaceous Earth (DE).
What sets the Zeta-Pak® apart is its Zeta Potential. Many contaminants, such as bacteria and hazes, carry a negative charge. The modified media in the Zeta-Pak® carries a positive electrostatic charge, allowing it to attract and capture ultrafine particles that might otherwise pass through the physical pore structure. This makes it highly effective for:
- Botanical Extracts: Removing waxes, lipids, and haze without affecting flavor or odor.
- Pharmaceuticals: Protection of downstream membrane filters.
- Distilled Spirits: Haze removal and polishing.
Materials of Construction & Compatibility
Ensuring chemical compatibility and product safety is paramount. ErtelAlsop designs these filters with minimal components to reduce risk.
| Filter Media | Cellulose pulp, filter aids (DE/Perlite), and wet strength resins. |
| Structural Components | Heavy-duty Polypropylene cores and spacers. |
| End Configuration | Available in Flat Gasket (for older housings) or Double O-Ring (for modern sanitary securement). |
Industrial Applications
Purecowater supplies ErtelAlsop Pak® configurations tailored for a variety of sectors:
- Life Sciences: Biopharmaceutical clarification and intermediary processing.
- Food & Beverage: Polishing syrups, oils, wines, and spirits.
- Cosmetics: Purification of fragrances, lotions, and essential oils.
- Chemicals: Removal of particulates from solvents and process fluids.
Contact Purecowater for Filtration Solutions
Whether you are upgrading from a plate and frame press or designing a new filtration skid, Purecowater works directly with manufacturers like Veolia and ErtelAlsop to provide the exact specifications your facility requires.
To determine the correct micron rating and media composition for your specific application, please contact us today to speak with our filtration specialists.