Polypropylene (PP) Capsule Filters - SF14963
When filtration applications demand resistance to the broadest range of industrial chemicals, polypropylene capsule filters deliver reliable clarification and prefiltration performance. Developed with critical workflows in mind, 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. By design, the outcome is simplified regulatory documentation and reduced contamination risk, with each single-use capsule providing a validated, traceable filtration event.
Key Polypropylene (PP) Membrane Characteristics
- Internal holdup volume of 25 milliliters minimizes sample loss during capsule filtration, a critical consideration when processing expensive biologics or limited-volume preparations.
- Maximum operating pressure of 75.4 psi provides the differential pressure capacity needed for sustained filtration of viscous solutions and high-flow process streams.
- Polypropylene capsule filters withstand aggressive chemical environments across the full pH range, from concentrated acids to strong bases, without membrane degradation or extractable release.
- 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.
- 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.
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 housing materials provide documented biocompatibility and low extractable profiles, supporting integration into pharmaceutical and food-processing filtration applications.
When your filtration protocol calls for a validated, integrity-testable barrier that arrives ready to connect and begins filtering immediately, the capsule format delivers that capability without the overhead of traditional filter assemblies. For this application, when your application requires chemical resistance across the full pH range combined with the ability to withstand autoclave sterilization, all-polypropylene construction meets your combined durability requirements. Secure your research outcomes by partnering with a filtration solution that understands your need for speed, accuracy, and reproducibility.
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.
- 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
- 8.5 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)
- 3
- Prefilter (Yes/No)
- No
- Sterility
- Nonsterile
- Sterilization
- Autoclavable at 121°C for 30 mins
- Vent (Yes/ No)
- Yes
- Weight
- 0.24
- Wettability
- Hydrophobic
- 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.
- 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.
- Ink Filtration - Clarification of printing inks, coatings, and pigment suspensions requiring broad chemical compatibility and high loading.
- Process Protection - Guard filtration upstream of sensitive analytical instruments, process equipment, and final membrane filters.