PTFE Capsule Filters - 6710-7502
From HPLC mobile phase preparation to process gas venting, PTFE capsule filters handle the chemically aggressive applications where other membrane materials degrade or fail. Building on this foundation, 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 result is a filtration workflow that scales efficiently from method development through production, delivering consistent retention performance across the full range of capsule effective filtration areas.
Key PTFE Membrane Characteristics
- Chemical inertness of the PTFE membrane ensures that filtered solvents and gases pass through without extractable contamination, meeting the purity requirements of HPLC mobile phase preparation and analytical applications.
- Non-sterile capsule delivery is appropriate for clarification, prefiltration, and general laboratory applications where the filtrate does not require sterility assurance.
- 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 pleated PTFE membrane configuration within the capsule housing provides sufficient surface area for production-scale solvent filtration without the pressure drops associated with flat disc PTFE devices.
- PTFE membrane chemistry withstands autoclave temperatures, supporting sterilization protocols where both the membrane and housing construction are rated for steam exposure.
Key Capsule Construction Features
- Single-use polypropylene capsule construction eliminates cleaning validation requirements, reducing the regulatory burden and turnaround time associated with reusable stainless steel filter housings.
- 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.
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. Here, 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. Secure your research outcomes by partnering with a filtration solution that understands your need for speed, accuracy, and reproducibility.
Sterilization Guidance
Non-sterile delivery accommodates applications where sterility is not required, while the all-polypropylene construction provides the option for autoclave sterilization when aseptic processing is specified.
For more information about chemical compatibility, please review our Chemical Compatibility Chart.
- Bubble Point (psi)
- 13 psi
- Burst Pressure (psi)
- 60 psi
- Capsule Format
- Polycap TF 75
- Compliance Standards
- ISO 9001
- Construction
- Polypropylene
- Diameter
- 7.5 cm
- Filling Bell (Yes/ No)
- No
- Filtration Area
- 890 cm²
- Holdup Volume
- 22 mL
- Inlet Connection
- 3/8 to 1/2 in. stepped barb
- Length
- 10.1 cm
- Material
- PTFE
- Max Batch Volume
- Large-volume batch processing
- Maximum Operating Pressure
- 60 psi
- Maximum Operating Temperature (°C)
- 121 °C
- Outlet Connection
- 3/8 to 1/2 in. stepped barb
- Pack Count
- 1
- Pore Size (µm)
- 0.2
- Prefilter (Yes/No)
- No
- Sterility
- Nonsterile
- Sterilization
- Autoclave
- Vent (Yes/ No)
- No
- 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.
- Solvent Recovery - Clarification of recycled organic solvents to remove particulates accumulated during previous processing operations.
- HPLC Preparation - Particle removal from organic and mixed mobile phases prior to high-performance liquid chromatography analysis.
- Tank Venting - Hydrophobic membrane barrier prevents microbial ingress while allowing pressure equalization in process tank headspaces.
- Vent Protection - Membrane barrier filtration for fermentation vessel exhaust and bioreactor off-gas systems in bioprocessing facilities.