PTFE Capsule Filters - 2603T
Laboratories and pilot plants that filter organic solvents or vent process gases turn to PTFE capsule filters for their unmatched chemical stability and thermal tolerance. 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. In combination, the result is a streamlined filtration step that integrates directly into fluid transfer systems, reducing hold times and minimizing the manual handling that compromises sterility assurance.
Key PTFE Membrane Characteristics
- Non-sterile capsules support autoclave sterilization where the membrane and housing materials permit, allowing users to prepare devices according to their own validated sterilization protocols.
- The hydrophobic PTFE membrane serves both liquid solvent filtration and sterile gas venting applications, with alcohol pre-wetting required only for aqueous solution processing.
- 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.
- Thermally fused polypropylene construction eliminates adhesives, binders, and O-rings from the fluid path, reducing extractable contamination and simplifying material qualification.
- NPT threaded connections provide secure, wrench-tightened installation for process applications requiring higher connection pressures than push-fit alternatives.
- The sealed polypropylene housing is individually integrity-tested during manufacturing, verifying membrane installation and housing seal quality before the device leaves the production facility.
From method development through scale-up to production, your capsule filter choice defines the balance between membrane performance, process integration, and the regulatory documentation trail that supports each filtration event. 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)
- 3 psi
- Burst Pressure (psi)
- 60 psi
- Capsule Format
- Polycap TF 36
- Compliance Standards
- ISO 9001
- Construction
- Polypropylene
- Diameter
- 3.6 cm
- Filling Bell (Yes/ No)
- No
- Filtration Area
- 430 cm²
- Holdup Volume
- 10 mL
- Inlet Connection
- 3/8 in. FNPT
- Length
- 5.6 cm
- Material
- PTFE
- Max Batch Volume
- Medium-volume batch processing
- Maximum Operating Pressure
- 60 psi
- Maximum Operating Temperature (°C)
- 121 °C
- Outlet Connection
- 3/8 in. FNPT
- Pack Count
- 5
- Pore Size (µm)
- 1
- Prefilter (Yes/No)
- No
- Sterility
- Nonsterile
- Sterilization
- Autoclave
- Vent (Yes/ No)
- No
- Wettability
- Hydrophobic
- HPLC Preparation - Particle removal from organic and mixed mobile phases prior to high-performance liquid chromatography analysis.
- Air Filtration - Point-of-use filtration of compressed air and nitrogen gas streams supplying clean manufacturing environments.
- Chemical Processing - Filtration of strong acids, bases, and aggressive organic chemicals that degrade PES, PVDF, and nylon membranes.
- Solvent Filtration - Chemical-resistant filtration of HPLC mobile phases, aggressive organic solvents, and corrosive reagent solutions.
- 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.