PTFE Capsule Filters - 2803T
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. Complementing this, pleated PTFE membrane construction provides extended surface area for solvent and gas filtration, maintaining flow performance across high-volume batches where chemical resistance is the primary selection criterion. By design, 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
- PTFE membrane capsules resist degradation by virtually all organic solvents, strong acids, bases, and oxidizing agents, providing universal chemical compatibility for aggressive filtration applications.
- Capsule holdup volume of 43 milliliters represents the fluid retained within the device after filtration, an important factor when calculating yield for high-value pharmaceutical products.
- 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 capsule filters maintain mechanical integrity and retention performance at temperatures exceeding those tolerated by PES, PVDF, or nylon membranes, supporting high-temperature process filtration.
- The hydrophobic PTFE membrane serves both liquid solvent filtration and sterile gas venting applications, with alcohol pre-wetting required only for aqueous solution processing.
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.
- Polypropylene housing materials provide documented biocompatibility and low extractable profiles, supporting integration into pharmaceutical and food-processing filtration applications.
- Thermally fused polypropylene construction eliminates adhesives, binders, and O-rings from the fluid path, reducing extractable contamination and simplifying material qualification.
- Polypropylene capsule housing supports autoclave sterilization at 121 degrees Celsius and withstands gamma irradiation exposure, accommodating both user-sterilized and factory-sterilized device configurations.
Whether your process requires sterilizing-grade retention for a 500-milliliter bench trial or clarification capacity for a 100-liter production batch, the right capsule filter configuration eliminates the compromises between throughput, retention, and operational simplicity. Here, when your application requires a membrane that withstands both chemical attack and elevated temperatures, PTFE construction delivers the durability your process conditions require without sacrificing retention performance. 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)
- 7 psi
- Burst Pressure (psi)
- 60 psi
- Capsule Format
- Polycap TF 150
- Compliance Standards
- ISO 9001
- Construction
- Polypropylene
- Diameter
- 15 cm
- Filling Bell (Yes/ No)
- No
- Filtration Area
- 1830 cm²
- Holdup Volume
- 43 mL
- Inlet Connection
- 3/8 in. FNPT
- Length
- 18 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 in. FNPT
- Pack Count
- 5
- Pore Size (µm)
- 0.45
- 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.
- Solvent Recovery - Clarification of recycled organic solvents to remove particulates accumulated during previous processing operations.
- 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.
- 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.