Polypropylene (PP) Capsule Filters - SF14964
For high-particulate or chemically aggressive fluid streams, polypropylene capsule filters provide the loading capacity and chemical resistance needed for reliable in-line operation. The depth-style polypropylene media within the capsule housing provides high dirt-holding capacity for clarification and prefiltration applications where particulate loads would rapidly foul membrane-based devices. 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 Polypropylene (PP) Membrane Characteristics
- The 75.4 psi maximum pressure rating accommodates the differential pressures generated during filtration of particle-laden solutions as the membrane progressively loads.
- Polypropylene capsule construction tolerates repeated autoclave sterilization cycles at 121 degrees Celsius, supporting reuse protocols where single-use disposability is not required.
- Polypropylene capsule filters serve as effective guard filters upstream of sensitive analytical instruments and sterilizing-grade membrane devices, removing gross particulates that would cause premature fouling.
- The non-sterile capsule format offers a cost-effective option for applications where particle removal rather than sterility assurance is the primary filtration objective.
- 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.
Key Capsule Construction Features
- Polypropylene capsule housing provides broad chemical compatibility from pH 1 to 14, resisting the acids, bases, and process chemicals that degrade alternative housing materials.
- Single-use polypropylene capsule construction eliminates cleaning validation requirements, reducing the regulatory burden and turnaround time associated with reusable stainless steel filter housings.
- The sealed polypropylene housing is individually integrity-tested during manufacturing, verifying membrane installation and housing seal quality before the device leaves the production facility.
- Polypropylene capsule housing supports autoclave sterilization at 121 degrees Celsius and withstands gamma irradiation exposure, accommodating both user-sterilized and factory-sterilized device configurations.
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. For exactly this reason, if your process generates high particulate loads or involves chemically aggressive fluids, polypropylene capsule construction provides the chemical breadth and dirt-holding capacity your clarification step 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
Standard autoclave cycles at 121 degrees Celsius are compatible with the polypropylene housing and membrane assembly, allowing preparation for sterile applications at the point of use.
For more information about chemical compatibility, please review our Chemical Compatibility Chart.
- Compliance Standards
- ISO 9001
- Connection Type
- 3/8 in. MNPT
- Construction
- Polypropylene
- Diameter
- 72mm
- Dimensions
- 72mm x 92.7mm
- Filling Bell (Yes/ No)
- No
- Filtration Area
- 500cm²
- Flow Rate
- 2.8 L/min at 0.1 bar
- Holdup Volume
- 25mL
- Inlet Connection
- 3/8 in. MNPT
- Length
- 92.7mm
- Material
- PP
- Max Batch Volume
- <20L
- Maximum Operating Pressure
- 75.4psi
- Maximum Operating Temperature (°C)
- 80°C
- Outlet Connection
- 3/8 in. MNPT
- Pack Count
- 1
- Pore Size (µm)
- 5
- Prefilter (Yes/No)
- No
- Sterility
- Nonsterile
- Sterilization
- Autoclavable at 121°C for 30 mins
- Vent (Yes/ No)
- Yes
- Weight
- 0.24
- Wettability
- Hydrophobic
- Prefiltration - Coarse particle removal upstream of final membrane filters to extend downstream filter service life and throughput.
- Solvent Clarification - Removal of particulates from organic solvents and chemical solutions using chemically resistant polypropylene media.
- Chemical Clarification - Removal of suspended solids from aggressive chemical solutions across the full pH range from acids to bases.
- Process Protection - Guard filtration upstream of sensitive analytical instruments, process equipment, and final membrane filters.
- Water Treatment - Prefiltration and clarification of process water streams in manufacturing, laboratory, and utility system applications.
- Ink Filtration - Clarification of printing inks, coatings, and pigment suspensions requiring broad chemical compatibility and high loading.