PolyCap TF 36 PTFE Capsule Filter SKU: 6711-3604

PTFE Capsule Filters - 6711-3604

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. 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. In combination, 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

• Non-sterile capsule delivery is appropriate for clarification, prefiltration, and general laboratory applications where the filtrate does not require sterility assurance.
• 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 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.
• The 60 psi maximum pressure rating accommodates the differential pressures generated during filtration of particle-laden solutions as the membrane progressively loads.
• 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

• The sealed polypropylene housing is individually integrity-tested during manufacturing, verifying membrane installation and housing seal quality before the device leaves the production facility.
• NPT threaded connections provide secure, wrench-tightened installation for process applications requiring higher connection pressures than push-fit alternatives.
• Single-use polypropylene capsule construction eliminates cleaning validation requirements, reducing the regulatory burden and turnaround time associated with reusable stainless steel filter housings.
• 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. For exactly this reason, 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. Elevate the quality of your analytical data today by standardizing on a filtration product built to meet the exact specifications of your applications.

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)

7 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 in. MNPT

Length

9.6 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)

0.45

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclave

Vent (Yes/ No)

No

Wettability

Hydrophobic

• 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.
• Vent Protection - Membrane barrier filtration for fermentation vessel exhaust and bioreactor off-gas systems in bioprocessing facilities.
• Air Filtration - Point-of-use filtration of compressed air and nitrogen gas streams supplying clean manufacturing environments.
• Tank Venting - Hydrophobic membrane barrier prevents microbial ingress while allowing pressure equalization in process tank headspaces.