Lenticular Pak® Cartridges

ErtelAlsop Pak® depth filter cartridges, also known as depth lenticular filter modules, are available in several configurations and options. Lenticular cartridges, or modules, are manufactured in 12 inch (30.5 cm) or 16 inch (40.6 cm) diameter and include from 5 to 18 stacked lenticular filter cells. A Pak® is assembled from varying numbers of filters cell. Each filter cell is comprised of a pair of MicroMedia®, AlphaMedia® or MicroClear® depth filter media sheets where the edges of each pair is sealed by a patented process, using polypropylene. The assembled unit resembles a stack of double convex lenses, hence the term “lenticular.”

To meet the demands of various applications, depth filters can be supplied with options including water removal, pharmaceutical grade material, or polypropylene filter media.

Why do customers love our Pak® Cartridges?

Highly Efficient Particle Retention

All Pak® lenticular cartridges utilize ErtelAlsop depth filter media, which provides a wide range of particle retention with high solids loading capacity. Nominal retentions range from 0.25 to 15 microns.

Sizes Available Over 300 precision dies are available to fit virtually any filter press.

throughput

High Solids Loading

The complex matrix of fibers and particles of filter aid create a structure which allows for greater concentration of particles than most surface retention filter media. All ErtelAlsop filter media with filter aid and/or carbon exhibits a positive Zeta-Potential over a wide pH range. This allows for the removal of negatively charged particles smaller than the pore size of the filter media, providing additional solids loading capacity.

Wide Compatibility

Pak® lenticular cartridge elements use cellulose/filter aid media, polypropylene, stainless steel, and appropriate elastomers, which allow for excellent product compatibility. ErtelAlsop also offers the Pak® lenticular cartridge with polypropylene filter media, if cellulose or filter aid are not compatible with your product.

Zeta-Pak®ZetaDri-Pak®Disc-Pak®Bio-Pak®AquaKv-Pak®

Zeta-Pak®

The Zeta-Pak depth filter module is manufactured with MicroMedia providing a relatively high flow rate, zeta potential and superior retention of ultra-fine particles. The workhorse of ErtelAlsop Pak filter cartridges, the Zeta-Pak depth filter module can be used in virtually any application, as it provides the greatest retention efficiencies of all media series.

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Benefits & Options

Benefits

  • Filter Aid Impregnated Media
  • Perlite
  • Diatomaceous Earth
  • Carbon

Options

  • Diameter: 12 inch or 16 inch
  • Height: 7 1/2″ or 10 7/8″
  • Core: Polypropylene or Stainless Steel straps
  • End Cap: Double O-Ring or Flat Gasket
  • Gasket Material: Viton, Buna-N, Neoprene, EPDM, Silicone, and Teflon Encapsulated
  • Number of Cells:  5 to 18
Applications
  • From course filtration to sub-micronic retention
Available Formulations
  • AlphaMedia is manufactured from 100% cellulose. It contain no resins, binders, fillers or synthetic micro fibers. Three standard nominal retention ratings, from 10µm to 1.0µm are available.
  • MicroMedia high-performance filter sheets contain cellulose, filter-aid, and resin binders. It has very high solids-loading capacity and is available in nominal retention ratings from 10μm to 0.25µm.
  • MicroMedia: L Series is designed for Life Science applications where 1,3 B D glucan interference may falsely indicate elevated endotoxin levels with some LAL test kits. Manufactured with a combination of specially treated cellulose fibers, filter aids and resin, L series filter media provides significant advantages for use in sensitive process conditions.
  • MicroMedia: XL Series is formulated with cellulose, resin binders and an ultra-pure form of Diatomaceous Earth (DE) is specifically designed for use in critical applications requiring extremely low extractable and leachable levels for metal ions.
  • MicroMedia:LXL Series combines advantages of the XL series ultra pure Diatomaceous Earth with the L series Beta glucan poor cellulose fibers to produce this superior depth filter media and making it the leading choice for Biopharm applications.
  • MicroClear is designed to remove color and odor from process fluids to provide colorless and odorless process streams. Through a blending of powdered activated carbon, cellulose fibers and resin binders ErtelAlsop is able to provide 7 different grades of this filter media to choose from.
  • Pharmaceutical Grades – ErtelAlsop pharmaceutical products are supported by individual Validation Guides for each grade of pharmaceutical depth filter media

ZetaDri-Pak®

Offering all the benefits of depth filtration plus the ability to capture free and emulsified water from your product, the ZetaDri-Pak Water Removing Depth Filter Cartridges allow for easy change out, low labor costs, optimized filtration area and high solids loading. Utilizing ErtelAlsop MicroMedia the 16-cell ZetaDri-Pak Water Removing Depth Filter Cartridges holds a minimum of 148 ounces of water. The need for change out can be determined by simply monitoring differential pressure.

The ZetaDri-Pak removes water from silicones, oil based food products and specialty chemicals. The ZetaDri-Pak also eliminates water induced hazes in clarifying the oils.

The ZetaDri-PakWater Removing Depth Filter Cartridges is available in all grades of ErtelAlsop media and can be utilized in various applications where water is a problem. From flavorings to oils, the ZetaDri-Pak Water Removing Depth Filter Cartridges will provide the retention level your application requires.

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Benefits & Options

Benefits

  • Water removal from oils
  • Water adsorbent
  • Particulate filtration

Options

  • Diameter: 12 inch or 16 inch
  • Height: 7 1/2″ or 10 7/8″
  • Core: Stainless Steel straps
  • End Cap: Flat Gasket
  • Gasket Material: Viton, Buna-N, Neoprene, EPDM, Silicone, and Teflon Encapsulated
  • Number of Cells:  5 to 18
Applications
  • Transil insulating oils
  • Transformer Oils
  • Circuit breaker oils
Available Formulations
  • AlphaMedia – manufactured from 100% cellulose. It contain no resins, binders, fillers or synthetic micro fibers. Three standard nominal retention ratings, from 10µm to 1.0µm are available.

Disc-Pak®

The original lenticular cartridge, the Disc-Pak depth filter cartridge, is specially formulated for the precise filtration of liquids in the light to medium viscosity range. From applications such as lubricating oils, dielectric oils and coolants to syrups, beverages and perfumes, the Disc-Pak, with ErtelAlsop 100% cellulose AlphaMedia, may be used where particulate retention is the purpose of filtration. Disc-Pak depth filter cartridges are available in several grades to allow retention down to 1 micron.

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Benefits & Options

Benefits

  • 100% Celluose
  • Little to no extactables
  • No resin or binders

Options

  • Diameter: 12 inch or 16 inch
  • Height: 7 1/2″ or 10 7/8″
  • Core: Polypropylene or Stainless Steel Straps
  • End Cap: Double O-Ring or Flat Gasket
  • Gasket Material: Viton, Buna-N, Neoprene, EPDM, Silicone, and Teflon Encapsulated
  • Number of Cells:  5 to 18
Applications
  • Critical processes with high contaminants concentrations
  • Metal ion/extractables sensitivities
Available Formulations
  • AlphaMedia – manufactured from 100% cellulose. It contain no resins, binders, fillers or synthetic micro fibers. Three standard nominal retention ratings, from 10µm to 1.0µm are available.
  • Pharmaceutical Grades – ErtelAlsop pharmaceutical products are supported by individual Validation Guides for each grade of pharmaceutical depth filter media

Bio-Pak®

The Bio-Pak Depth Filter Cartridge was the first U.S. manufactured double O-ring filter element. This depth filter cartridge is designed specifically for use in critical applications, providing the utmost assurance that no bypass will occur at cartridge sealing surfaces.

The Bio-Pak depth filter cartridge for the Pharmaceutical market provides relatively high flow rate, positive electrical charge and superior retention of ultra fine particles. From the downstream processing of biopharmaceuticals, plasma fractionation and the bulk filtration of culture media, topicals and intermediates filtration, the Bio-Pak Depth Filter Cartridges will provide the result your application requires.

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Benefits & Options

Benefits

  • Pharmaceutical grade media
  • Double O-Ring end-cap seal

Options

  • Diameter: 12 inch or 16 inch
  • Height: 7 1/2″ or 10 7/8″
  • Core: Polypropylene
  • End Cap: Double O-Ring
  • Gasket Material: Viton, Buna-N, Neoprene, EPDM, Silicone, and Teflon Encapsulated
  • Number of Cells:  5 to 18
Applications
  • Critical pharmaceutical and biotech applications
Available Formulations
  • AlphaMedia is manufactured from 100% cellulose. It contain no resins, binders, fillers or synthetic micro fibers. Three standard nominal retention ratings, from 10µm to 1.0µm are available.
  • MicroMedia high-performance filter sheets contain cellulose, filter-aid, and resin binders. It has very high solids-loading capacity and is available in nominal retention ratings from 10μm to 0.25µm.
  • MicroMedia: L Series is designed for Life Science applications where 1,3 B D glucan interference may falsely indicate elevated endotoxin levels with some LAL test kits. Manufactured with a combination of specially treated cellulose fibers, filter aids and resin, L series filter media provides significant advantages for use in sensitive process conditions.
  • MicroMedia: XL Series is formulated with cellulose, resin binders and an ultra-pure form of Diatomaceous Earth (DE) is specifically designed for use in critical applications requiring extremely low extractable and leachable levels for metal ions.
  • MicroMedia:LXL Series combines advantages of the XL series ultra pure Diatomaceous Earth with the L series Beta glucan poor cellulose fibers to produce this superior depth filter media and making it the leading choice for Biopharm applications.
  • MicroClear is designed to remove color and odor from process fluids to provide colorless and odorless process streams. Through a blending of powdered activated carbon, cellulose fibers and resin binders ErtelAlsop is able to provide 7 different grades of this filter media to choose from.
  • Pharmaceutical Grades – ErtelAlsop pharmaceutical products are supported by individual Validation Guides for each grade of pharmaceutical depth filter media

AquaKv-Pak®

The AquaKv-Pak depth filter cartridge was designed and developed specifically for the retention of water contamination in transformer and turbine lube oils along with the retention of particulate down to the sub-micronic level. This Pak lenticular cartridge concept combines the particulate retention capabilities of the Disc-Pak with an enhanced capacity for the retention of free and dissolved water. The AquaKv-Pak depth lenticular filter cartridge demonstrates mechanical shutoff when fully saturated with water. Particle retention does not affect water-holding capacity, which has been documented at up to 120 ounces per full 9-cell Pak lenticular cartridge. The use of AquaKv-Paks and an ErtelAlsop Pak lenticular cartridge housing can recondition dielectric fluids to meet or exceed ASTM and manufacturers’ standards.

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Benefits & Options

Benefits

  • Water removal from oils
  • Water adsorbent
  • Particulate filtration

Options

  • Diameter: 12 inch or 16 inch
  • Height: 7 1/2″ or 10 7/8″
  • Core: Stainless Steel straps
  • End Cap: Flat Gasket
  • Gasket Material: Viton, Buna-N, Neoprene, EPDM, Silicone, and Teflon Encapsulated
  • Number of Cells:  5 to 18
Applications
  • Transil insulating oils
  • Transformer Oils
  • Circuit breaker oils
Available Formulations
  • AlphaMedia – manufactured from 100% cellulose. It contain no resins, binders, fillers or synthetic micro fibers. Three standard nominal retention ratings, from 10µm to 1.0µm are available.