PolyCap TF 36 PTFE Capsule Filter SKU: 6700-3610

PTFE Capsule Filters - 6700-3610

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. At its core, PTFE membrane stability at elevated temperatures supports both liquid filtration and sterile gas venting applications, with capsule construction rated for the operating pressures encountered in process-scale systems. The outcome is higher operational throughput with lower contamination risk, as disposable capsule devices remove the reprocessing steps that introduce variability into reusable filter systems.

Key PTFE Membrane Characteristics

• Rated for continuous operation at temperatures up to 121 degrees Celsius, the capsule maintains structural integrity and retention performance across the normal process temperature range.
• 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.
• Single-membrane construction simplifies integrity test interpretation, as the bubble point and diffusion flow values correspond directly to the rated retention membrane without prefilter interference.
• PTFE membrane capsules resist degradation by virtually all organic solvents, strong acids, bases, and oxidizing agents, providing universal chemical compatibility for aggressive filtration applications.

Key Capsule Construction Features

• Polypropylene housing materials provide documented biocompatibility and low extractable profiles, supporting integration into pharmaceutical and food-processing filtration applications.
• Polypropylene capsule housing provides broad chemical compatibility from pH 1 to 14, resisting the acids, bases, and process chemicals that degrade alternative housing materials.
• Barbed inlet and outlet connections provide a practical, leak-resistant interface for gravity-feed, peristaltic pump, and pressure-driven filtration systems using flexible tubing.
• Polypropylene capsule housing supports autoclave sterilization at 121 degrees Celsius and withstands gamma irradiation exposure, accommodating both user-sterilized and factory-sterilized device configurations.

Your laboratory's filtration throughput depends not only on membrane retention characteristics but on the practical factors of device connection, priming, and changeover that capsule filters are specifically engineered to optimize. 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. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

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

1/4 to 3/8 in. stepped barb

Length

9.2 cm

Material

PTFE

Max Batch Volume

Medium-volume batch processing

Maximum Operating Pressure

60 psi

Maximum Operating Temperature (°C)

121 °C

Outlet Connection

1/4 to 3/8 in. stepped barb

Pack Count

1

Pore Size (µm)

1

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclave

Vent (Yes/ No)

No

Wettability

Hydrophobic

• 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.
• 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.
• Tank Venting - Hydrophobic membrane barrier prevents microbial ingress while allowing pressure equalization in process tank headspaces.
• HPLC Preparation - Particle removal from organic and mixed mobile phases prior to high-performance liquid chromatography analysis.