PTFE Capsule Filters - SF15004
When filtration applications involve strong acids, concentrated organics, or high-temperature gases, PTFE capsule filters offer universal chemical resistance in a ready-to-use format. In addition, the chemically inert PTFE membrane within the capsule housing resists degradation by virtually all organic solvents, strong acids, and alkaline solutions, enabling filtration of the most aggressive process fluids. The outcome is simplified regulatory documentation and reduced contamination risk, with each single-use capsule providing a validated, traceable filtration event.
Key PTFE Membrane Characteristics
- PTFE membrane chemistry withstands autoclave temperatures, supporting sterilization protocols where both the membrane and housing construction are rated for steam exposure.
- PTFE membrane capsules resist degradation by virtually all organic solvents, strong acids, bases, and oxidizing agents, providing universal chemical compatibility for aggressive filtration applications.
- The hydrophobic PTFE membrane serves both liquid solvent filtration and sterile gas venting applications, with alcohol pre-wetting required only for aqueous solution processing.
- The non-sterile capsule format offers a cost-effective option for applications where particle removal rather than sterility assurance is the primary filtration objective.
- Maximum operating pressure of 75.4 psi provides the differential pressure capacity needed for sustained filtration of viscous solutions and high-flow process streams.
Key Capsule Construction Features
- The sealed polypropylene housing is individually integrity-tested during manufacturing, verifying membrane installation and housing seal quality before the device leaves the production facility.
- Polypropylene capsule housing supports autoclave sterilization at 121 degrees Celsius and withstands gamma irradiation exposure, accommodating both user-sterilized and factory-sterilized device configurations.
- Thermally fused polypropylene construction eliminates adhesives, binders, and O-rings from the fluid path, reducing extractable contamination and simplifying material qualification.
- Polypropylene capsule housing provides broad chemical compatibility from pH 1 to 14, resisting the acids, bases, and process chemicals that degrade alternative housing materials.
As single-use filtration continues to replace reusable housings across pharmaceutical and laboratory environments, your capsule filter selection determines both the quality of the filtrate and the efficiency of the workflow. In response, if your workflow involves organic solvents, aggressive reagents, or process gas streams, the universal chemical resistance of PTFE membrane construction handles the harshest conditions your application presents. Take control of your sample preparation variables and ensure that your data reflects the true nature of your work, rather than the quality of your consumables.
Sterilization Guidance
Supplied non-sterile, the polypropylene housing supports autoclave sterilization at 121 degrees Celsius for 20 minutes when aseptic filtration is required by the application protocol.
For more information about chemical compatibility, please review our Chemical Compatibility Chart.
- Bubble Point (psi)
- 2.9psi
- Compliance Standards
- ISO 9001
- Connection Type
- 1/4 in. MNPT
- Construction
- Polypropylene
- Diameter
- 72mm
- Dimensions
- 72mm x 115mm
- Filling Bell (Yes/ No)
- No
- Filtration Area
- 1000cm²
- Flow Rate
- 7.9 L/min at 0.1 bar
- Holdup Volume
- 60mL
- Inlet Connection
- 1/4 in. MNPT
- Length
- 115mm
- Material
- PTFE
- Max Batch Volume
- <50L
- Maximum Operating Pressure
- 75.4psi
- Maximum Operating Temperature (°C)
- 80°C
- Outlet Connection
- 1/4 in. MNPT
- Pack Count
- 1
- Pore Size (µm)
- 1
- Prefilter (Yes/No)
- No
- Sterility
- Nonsterile
- Sterilization
- Autoclavable at 121°C for 30 mins
- Vent (Yes/ No)
- Yes
- Weight
- 0.39
- Wettability
- Hydrophobic
- Solvent Filtration - Chemical-resistant filtration of HPLC mobile phases, aggressive organic solvents, and corrosive reagent solutions.
- Chemical Processing - Filtration of strong acids, bases, and aggressive organic chemicals that degrade PES, PVDF, and nylon membranes.
- Air Filtration - Point-of-use filtration of compressed air and nitrogen gas streams supplying clean manufacturing environments.
- Vent Protection - Membrane barrier filtration for fermentation vessel exhaust and bioreactor off-gas systems in bioprocessing facilities.
- Solvent Recovery - Clarification of recycled organic solvents to remove particulates accumulated during previous processing operations.
- Tank Venting - Hydrophobic membrane barrier prevents microbial ingress while allowing pressure equalization in process tank headspaces.