Polypropylene (PP) Capsule Filters - SF14961
For high-particulate or chemically aggressive fluid streams, polypropylene capsule filters provide the loading capacity and chemical resistance needed for reliable in-line operation. 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. 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 Polypropylene (PP) Membrane Characteristics
- Capsule holdup volume of 25 milliliters represents the fluid retained within the device after filtration, an important factor when calculating yield for high-value pharmaceutical products.
- The depth-type polypropylene media provides high dirt-holding capacity for prefiltration and clarification, extending the service life of downstream sterilizing-grade membrane filters.
- 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.
- Polypropylene capsule construction tolerates repeated autoclave sterilization cycles at 121 degrees Celsius, supporting reuse protocols where single-use disposability is not required.
- Maximum operating pressure of 75.4 psi provides the differential pressure capacity needed for sustained filtration of viscous solutions and high-flow process streams.
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.
- Thermally fused polypropylene construction eliminates adhesives, binders, and O-rings from the fluid path, reducing extractable contamination and simplifying material qualification.
- 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.
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 particular, 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
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. hose barb
- Construction
- Polypropylene
- Diameter
- 72mm
- Dimensions
- 72mm x 100mm
- Filling Bell (Yes/ No)
- No
- Filtration Area
- 500cm²
- Flow Rate
- 3 L/min at 0.1 bar
- Holdup Volume
- 25mL
- Inlet Connection
- 3/8 in. Hose Barb
- Length
- 100mm
- Material
- PP
- 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)
- 0.22
- Prefilter (Yes/No)
- No
- Sterility
- Nonsterile
- Sterilization
- Autoclavable at 121°C for 30 mins
- Vent (Yes/ No)
- Yes
- Weight
- 0.25
- Wettability
- Hydrophobic
- 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.
- Food and Beverage - Clarification of beverages, process water, and food-grade fluids using polypropylene construction materials with documented chemical compatibility.
- 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.
- Chemical Clarification - Removal of suspended solids from aggressive chemical solutions across the full pH range from acids to bases.