ErtelAlsop Pak® Lenticular Filters: Specifications & Product Overview

For industries requiring rigorous liquid filtration—ranging from pharmaceuticals to food and beverage—ErtelAlsop Pak® Lenticular Filters represent a premier solution in depth filtration technology. As a robust alternative to traditional plate and frame filters, these lenticular cartridges offer a totally enclosed, leak-free sanitary design that simplifies operations while maximizing throughput.

At Purecowater, we specialize in solving complex solid and liquid filtration problems. As a distributor for top-tier engineered solutions, we are proud to offer ErtelAlsop’s line of Pak® Lenticular Cartridges to enhance your process efficiency.

What is a Lenticular Filter?

The ErtelAlsop Pak® cartridge (also known as a lenticular module) is a depth filtration system constructed from stacked filter cells. Unlike surface filters that trap particles only on the top layer, these depth filters utilize a complex matrix of fibers and filter aids to trap particles throughout the media’s thickness.

Each module consists of multiple cells—typically ranging from 5 to 18 stacked cells—assembled into a single unit. Each cell is formed by a pair of Depth Filter Sheets (such as MicroMedia® or AlphaMedia®) with sealed edges. This design resembles a stack of double convex lenses, giving the technology its “lenticular” name [ertelalsop.com].

The “lenticular” design maximizes surface area within a compact footprint, allowing for high solids loading capacity and extended service life compared to standard cartridges.

Key Features and Benefits

The Pak® Lenticular Filters are designed to replace the labor-intensive plate and frame filter presses of the past. They offer several distinct advantages:

• Totally Enclosed System: Prevents leakage and atmospheric exposure, crucial for sanitary applications and preventing product loss [ertelalsop.com].
• High Solids Loading: The depth media matrix can retain a significant amount of particulate before blinding.
• Scalability: Available in 12-inch and 16-inch diameters with various cell counts to fit different batch sizes.
• Quick Changeout: Modules can be swapped out in minutes, drastically reducing downtime compared to redressing a plate and frame press.

Technical Specifications

ErtelAlsop provides a wide array of configurations to suit specific viscosity and retention requirements. Below are the general specifications for the Pak® series.

Feature	Specification Details
Diameters	12 inch (30.5 cm) & 16 inch (40.6 cm)
Number of Cells	5 to 18 cells per module
Micron Retention	Nominal ratings from 0.25 to 15 microns
End Cap Configurations	Double O-Ring, Flat Gasket
Core Material	Polypropylene (Standard), Stainless Steel (Optional)
Gasket Materials	EPDM, Nitrile, Viton, Silicone

Media Types and Models

Choosing the right media formulation is critical for performance. ErtelAlsop offers several specialized lines:

Model	Composition	Primary Applications
Zeta-Pak®	Cellulose & Diatomaceous Earth (DE)	The “workhorse” for general applications requiring high zeta potential and fine particle retention [store.clearsolutionscorp.com].
Disc-Pak®	100% Cellulose (AlphaMedia)	Ideal for light to medium viscosity fluids (oils, syrups, perfumes) where DE or Perlite is restricted [clearsolutionscorp.com].
Bio-Pak®	Premium Cellulose/Filter Aid	Designed for high-purity biological and pharmaceutical applications.
MicroClear®	Activated Carbon	Color, odor, and flavor correction without loose carbon powder mess.

Industry Applications

The versatility of ErtelAlsop Pak® modules allows them to be deployed across a wide range of industries:

• Pharmaceuticals & Life Sciences: Depth filtration for APIs, blood fractionation, and cell removal.
• Food & Beverage: Haze removal in spirits, wine polishing, and syrup clarification.
• Botanical Extraction: Highly effective for removing waxes and lipids in botanical extracts due to high flow rates and DE media integration [store.clearsolutionscorp.com].
• Chemical & Industrial: Polishing of dielectric oils, varnishes, and correcting solvents.
• Cosmetics: Clarification of perfumes and lotions.

Filter Housings

To complement the cartridges, ErtelAlsop manufactures specialized lenticular filter housings efficiently designed for the “Lock and Load” system. These are available in:

• Vertical Design: Standard footprint for most industrial needs.
• Horizontal Design: Allows for ergonomic loading at wait-height and prevents fluid loss during changeouts [ertelalsop.com].

Why Choose Purecowater?

Selecting the correct lenticular configuration involves balancing micron ratings, flow rates, and chemical compatibility. As an experienced distributor/OEM, Purecowater assists in sizing and selecting the optimal filtration array for your facility.

Whether you need to upgrade from a messy plate and frame press or require fresh consumables for your existing housing, our team is ready to support your operations.