Polypropylene (PP) Capsule Filters - SF14944
Polypropylene capsule filters address industrial and laboratory clarification needs where chemical resistance, autoclavability, and cost-effective disposability are primary requirements. From a technical standpoint, 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
- Single-layer membrane construction provides direct, absolute retention at the rated pore size without the additional flow resistance introduced by upstream prefilter layers.
- The non-sterile format provides the same membrane retention and flow performance as sterile variants, with the flexibility for user-controlled sterilization when process requirements dictate.
- 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 depth-type polypropylene media provides high dirt-holding capacity for prefiltration and clarification, extending the service life of downstream sterilizing-grade membrane filters.
- Maximum operating temperature of 80 degrees Celsius supports filtration of warm solutions and accommodates the thermal conditions present in process environments.
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.
- 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.
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. To that end, 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. 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
Supplied non-sterile, the polypropylene housing supports autoclave sterilization at 121 degrees Celsius for 20 minutes when aseptic filtration is required by the application protocol.
For more information about chemical compatibility, please review our Chemical Compatibility Chart.
- Compliance Standards
- ISO 9001
- Connection Type
- 1/4 - 3/8 in. stepped hose barb
- Construction
- Polypropylene
- Diameter
- 72mm
- Dimensions
- 72mm x 95mm
- Filling Bell (Yes/ No)
- No
- Filtration Area
- 500cm²
- Flow Rate
- 2.85 L/min at 0.1 bar
- Holdup Volume
- 25mL
- Inlet Connection
- 1/4 - 3/8 in. Stepped Hose Barb
- Length
- 95mm
- Material
- PP
- Max Batch Volume
- <20L
- Maximum Operating Pressure
- 75.4psi
- Maximum Operating Temperature (°C)
- 80°C
- Outlet Connection
- 1/4 - 3/8 in. Stepped Hose Barb
- Pack Count
- 1
- Pore Size (µm)
- 1
- Prefilter (Yes/No)
- No
- Sterility
- Nonsterile
- Sterilization
- Autoclavable at 121°C for 30 mins
- Vent (Yes/ No)
- Yes
- Weight
- 0.24
- Wettability
- Hydrophobic
- Solvent Clarification - Removal of particulates from organic solvents and chemical solutions using chemically resistant polypropylene media.
- Industrial Fluids - High-capacity filtration of process chemicals, rinse water, and industrial solutions requiring aggressive chemical resistance.
- Food and Beverage - Clarification of beverages, process water, and food-grade fluids using polypropylene construction materials with documented chemical compatibility.
- 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.