Polypropylene (PP) Capsule Filters - SF15000
For high-particulate or chemically aggressive fluid streams, polypropylene capsule filters provide the loading capacity and chemical resistance needed for reliable in-line operation. Supporting this capability, all-polypropylene construction from membrane to housing provides uniform chemical resistance, eliminating the compatibility concerns that arise when membrane and housing materials respond differently to aggressive process fluids. To this end, 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
- Rated for operating pressures up to 75.4 psi, the capsule housing withstands the system pressures encountered in peristaltic pump, pressure vessel, and gravity-feed filtration configurations.
- Non-sterile configuration accommodates laboratory and industrial applications where the capsule filter serves a clarification or protection function rather than a sterilizing-grade barrier role.
- The hydrophobic polypropylene matrix provides effective filtration of organic solvents and non-aqueous process fluids without the pre-wetting steps required for aqueous applications.
- 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.
- Rated for continuous operation at temperatures up to 80 degrees Celsius, the capsule maintains structural integrity and retention performance across the normal process temperature range.
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.
- Polypropylene capsule housing supports autoclave sterilization at 121 degrees Celsius and withstands gamma irradiation exposure, accommodating both user-sterilized and factory-sterilized device configurations.
- 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.
As batch volumes and regulatory expectations continue to grow, your capsule filter selection becomes a process design decision that affects sterility assurance, product recovery, and operational cost per liter filtered. In response, for prefiltration applications where protecting downstream membrane filters extends your process economics, polypropylene capsule filters deliver the loading capacity your high-particulate feed streams demand. 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
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
- 1/4 in. MNPT
- Construction
- Polypropylene
- Diameter
- 72mm
- Dimensions
- 72mm x 115mm
- Filling Bell (Yes/ No)
- No
- Filtration Area
- 1000cm²
- Flow Rate
- 28.5 L/min at 0.1 bar
- Holdup Volume
- 60mL
- Inlet Connection
- 1/4 in. MNPT
- Length
- 115mm
- Material
- PP
- Max Batch Volume
- <50L
- Maximum Operating Pressure
- 75.4psi
- Maximum Operating Temperature (°C)
- 80°C
- Outlet Connection
- 1/4 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
- 0.42
- Wettability
- Hydrophobic
- Ink Filtration - Clarification of printing inks, coatings, and pigment suspensions requiring broad chemical compatibility and high loading.
- Water Treatment - Prefiltration and clarification of process water streams in manufacturing, laboratory, and utility system applications.
- Prefiltration - Coarse particle removal upstream of final membrane filters to extend downstream filter service life and throughput.
- Food and Beverage - Clarification of beverages, process water, and food-grade fluids using polypropylene construction materials with documented chemical compatibility.
- Industrial Fluids - High-capacity filtration of process chemicals, rinse water, and industrial solutions requiring aggressive chemical resistance.
- Process Protection - Guard filtration upstream of sensitive analytical instruments, process equipment, and final membrane filters.