Filter Devices

Scale Up Without Surprises

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Cartridge, Capsule, and Micro Capsule filters are made from the same materials, so you can be assured of consistent filter performance from lab to production

Cartridge Filters

Critical Process Filtration's cartridge filters are designed to deliver excellent performance in every application.
Designed and manufactured under an ISO 9001 certified Quality Management System, these American-made cartridge filters can be direct replacements for existing systems and housings.
 
Critical Process Filtration's cartridge filters offer configuration options to suit your operation from size, media choice and layering, to end cap and O-ring selection. These highly durable cartridge filters stand up to the rigors of steam-in-place (SIP) and clean-in-place (CIP) operations.  Depth media and membrane cartridges are also available in high area and high temperature configurations.
Media
  • Depth Media - Polypropylene and Fiberglass
  • Membrane - PES, Nylon 6,6, PVDF, PTFE
  • PES and Nylon 6,6 positively charged
  • Layering options
filter-base
End Cap
Gasket Option Shown
Core
The Structural Base of a Filter Cartridge
Support Material
Ensures Support of the Filter Media
Filter Media
Available in Single or Double Layer
Filter Cage
The Skeleton Support of a Filter Cartridge
Materials of Construction
  • Media choice
  • Polypropylene (cage, core, end caps)
  • Sealed by thermal bonding
Configurability
  • End caps - see selections
  • O-Rings: Buna, Viton® (or FKM), EPDM, Silicone, FEP Encapsulated  Silicone, FEP Encapsulated Viton (or FKM), stainless steel support ring for high temperature methods
Nominal Dimensions
  • Length: 5 to 40 inches (12.7 - 101.6 cm)
  • Outside Diameter: 2.75 inches (7.0 cm)
Sanitization & Sterilization
  • Filtered Hot Water : 90 °C, 30 min., multiple cycles, max 3 psid ff
  • Steam-in-place (SIP): 275 °F, 30 min., 25+ cycles
  • Autoclave: 250 °F, 30 min., 25+ cycles

Explore Application Specific Cartridge Filters

 


Capsule Filters

Capsule filters protect operators and environment during setup, production and cleaning, while delivering high performance to your filtration system and single use applications.
Critical Process Filtration's Capsule filters offer rigid construction that stands up to demanding usage, especially autoclave sterilization and chemical sanitization.
 
Each filter consists of a standard cartridge encapsulated in a dedicated polypropylene housing. Sizes range from 2 to 30 inches in length and come in a variety of end connections.
 
Most CPF capsules are available pre-sterilized by gamma irradiation.
CPF Capsule_Color BLANK-1
Inlet
Sanitary Connection Shown
Vent
Vent Used to Stabilize Capsule Pressure
Cartridge Filter
Cartridge Placed Inside Capsule Sleeve
Capsule Sleeve
Encloses the Cartridge Filter
Vent
Vent Used to Stabilize Capsule Pressure
Outlet
Hose Barb Connection Shown
Media
  • Depth Media - Polypropylene and Fiberglass
  • Membrane - PES, Nylon 6,6, PVDF, PTFE
  • PES and Nylon 6,6 positively charged
  • Layering options
Materials of Construction
  • Media choice
  • Polypropylene (outer housing, cage, core, end caps)
  • Sealed by thermal bonding
Configurability
Nominal Dimensions
  • Length: 2 to 30 inches (5.1 - 76.2 cm)
  • Outside Diameter: 3.50 inches (8.9 cm)
Sanitization & Sterilization
  • Autoclave: 250 °F, 30 min., 25+ cycles
  • Chemical

Explore Application Specific Capsule Filters


Micro Capsule Filters

Micro Capsule filters are ideal for bench scale process development and small volume applications.

Critical Process Filtration's Micro Capsule filters, made with the same high standards and materials as our larger capsule filters, deliver the performance you require and protect users from exposure to the process stream and protect fluids from environmental contaminants.

Most CPF Micro Capsules are available pre-sterilized by gamma irradiation.

CPF Micro Capsules are designed to provide outstanding performance and ease of use with a reduction in plastic and holdup volume compared to the Mini-Capsules. Depending on fluid volume and application, Micro Capsules are industrious filters intended for both lab and production environments.

Ease of Use

Micro Capsules are devised to work in your environment, so you don’t need to change your current setup or equipment. Their double-vent design enables them to be positioned in any direction or fit in tight spaces without impacting flow. Simply attach your input and output tubing according to the flow arrow and position the filter in any direction. To release air pressure, use whichever vent is most accessible. Depending on how you position the Micro Capsule, the vents can also be used to drain the fluid.

 

Micro Capsule With Cutout-1
Inlet
Hose Barb Inlet
Vent
Vent Used to Stabilize Micro Capsule Pressure
Cartridge Filter
Cartridge Inside Micro Capsule Shell
Micro Capsule Shell
Micro Capsule Shell Enclosing the Cartridge
Vent
Vent Used to Stabilize Micro Capsule Pressure
Outlet
Hose Barb Outlet
Media
  • Depth Media - Polypropylene and Fiberglass
  • Membrane - PES, Nylon 6,6, PVDF, PTFE
  • PES and Nylon 6,6 positively charged
  • Layering options
Materials of Construction
  • Media choice
  • Polypropylene (outer housing, cage, core, end caps)
  • Sealed by thermal bonding
Configurability
Nominal Dimensions
  • Body Length: 1.9 in. (4.8 cm)
  • Overall Length: 2.8 to 3.8 in. (7.1 to 9.7 cm)
  • Outside Diameter: 2.6 in. (6.6 cm)
Sanitization & Sterilization
  • Autoclave: 250 °F, 30 min., 25+ cycles
  • Chemical

Explore Application Specific Micro Capsule Filters


Media Discs

Flat disc filters make testing for compatibility and efficiency simpler for researchers in early stage product development. They are well suited for pharmaceuticals, bioprocessing, industrial chemicals, solvents, water and process gases in the following applications:

  • Aseptic Sampling of Fluids
  • Contamination Analysis
  • Particulate & Filterability Testing
  • Process Scale-Up Studies
  • Validation Studies
  • Small Vent Filters

Disc filters are also available in a wide range of sizes for each media to fit your current disc holders. 

Disc Holders

The CSH 47 mm Disc Holder is a popular size for laboratory testing.

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Made from 316L stainless steel, Disc Holders are true sanitary housings with no threaded vents or ports. They come with a clamp on twist valve assembly allowing for complete removal and cleaning of all components. The sanitary vent valve facilitates venting, draining, sampling, and integrity testing, and a single clamp closure enables easy disassembly and disc change out.