Polyethersulfone (PES) Capsule Filters - SF14952
When processing aqueous biologicals at volumes beyond syringe filter capacity, PES capsule filters provide the throughput and recovery performance that bench-scale devices cannot match. Moreover, PES membrane chemistry delivers broad pH compatibility from 1 to 14, supporting filtration of buffers, media, and cleaning solutions through a single capsule platform without material degradation. 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 Polyethersulfone (PES) Membrane Characteristics
- The inherently hydrophilic PES membrane wets immediately on contact with aqueous solutions, eliminating alcohol pre-flush steps and reducing both startup time and solvent waste.
- The single membrane configuration is appropriate for pre-clarified feed streams where upstream particulate removal has already reduced the contaminant load to levels within the capsule's dirt-holding capacity.
- PES membrane construction supports integrity testing by forward flow, bubble point, or pressure decay methods, providing the post-use verification required by pharmaceutical quality systems.
- Ultra-low protein binding characteristics of the PES membrane minimize adsorptive losses, preserving the concentration and biological activity of filtered proteins, antibodies, and growth factors.
- 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.
Key Capsule Construction Features
- Polypropylene capsule housing supports autoclave sterilization at 121 degrees Celsius and withstands gamma irradiation exposure, accommodating both user-sterilized and factory-sterilized device configurations.
- Polypropylene housing materials provide documented biocompatibility and low extractable profiles, supporting integration into pharmaceutical and food-processing filtration applications.
- 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.
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. Meeting this challenge, if your process involves aqueous biologicals, the ultra-low protein binding and broad pH compatibility of PES membrane construction protect your product while sustaining the flow rates your batch schedule requires. 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
Polypropylene construction throughout the device permits autoclave sterilization at standard conditions, enabling end-user preparation for sterile filtration applications as needed.
For more information about chemical compatibility, please review our Chemical Compatibility Chart.
- Bubble Point (psi)
- 26.1psi
- Compliance Standards
- ISO 9001
- Connection Type
- 3/8 in. hose barb
- Construction
- Polypropylene
- Diameter
- 72mm
- Dimensions
- 72mm x 100mm
- Filling Bell (Yes/ No)
- No
- Filtration Area
- 500cm²
- Flow Rate
- 2.2 L/min at 0.1 bar
- Holdup Volume
- 25mL
- Inlet Connection
- 3/8 in. Hose Barb
- Length
- 100mm
- Material
- PES
- Max Batch Volume
- <20L
- Maximum Operating Pressure
- 75.4psi
- Maximum Operating Temperature (°C)
- 80°C
- Outlet Connection
- 3/8 in. Hose Barb
- Pack Count
- 1
- Pore Size (µm)
- 0.45
- Prefilter (Yes/No)
- No
- Sterility
- Nonsterile
- Sterilization
- Autoclavable at 121°C for 30 mins
- Vent (Yes/ No)
- Yes
- Weight
- 0.25
- Wettability
- Hydrophilic
- Biologics Protection - Ultra-low protein binding preserves antibody and growth factor concentrations through the membrane retention step.
- Process Intermediates - In-line capsule filtration of pharmaceutical intermediates with validated retention and low adsorptive losses.
- Buffer Processing - Large-volume filtration of pharmaceutical buffers and process solutions with broad pH compatibility across pH 1-14.
- Reagent Filtration - Removal of particulates and contaminants from laboratory reagents and process solutions before downstream use.
- Water Purification - Membrane-grade filtration of purified water and water-for-injection systems in pharmaceutical manufacturing facilities.
- Serum Processing - Capsule filtration of animal sera and biological supplements for cell culture and diagnostic reagent applications.