Filter Devices

Cartridges | Capsules | Mini-Capsules | Discs

Part Lineup Picture Straight On 4K white with Junior (1)

Scale up without surprises.

Cartridge, Capsule and Mini-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. 

CPF Cartridge_Color PNG

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
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.

CPF Capsule_Color without gasket

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.
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


Mini-Capsule Filters

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

Mini Capsule with cutout labeled (4)Critical Process Filtration's Mini-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 Mini-Capsules are available pre-sterilized by gamma irradiation.

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
  • Inlets
  • Outlets
  • Vents
Nominal Dimensions
  • Body Length: 2.85 in. (7.2 cm)
  • Overall Length: 3.75 to 5.19 in. (9.5 to 13.2 cm)
  • Outside Diameter: 2.95 in. (7.5 cm)
Sanitization & Sterilization
  • Autoclave: 250 °F, 30 min., 25+ cycles
  • Chemical 

Explore Application Specific Mini-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.

Disc holder with filters

Made from 316L stainless steel, they 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.