Polypropylene Capsule Filter, 0.45um, 72mm x 115mm, 1/4 in. MNPT, Nonsterile, 1/Pk SKU: SF14997

Polypropylene (PP) Capsule Filters - SF14997

Polypropylene capsule filters provide aggressive chemical resistance across the full pH range, handling strong acids, bases, and organic solvents that attack other membrane materials. Polypropylene capsule construction withstands repeated autoclave sterilization cycles, supporting reuse protocols in applications where single-use economics are not favorable. Consequently, 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

• 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.
• 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 hydrophobic polypropylene matrix provides effective filtration of organic solvents and non-aqueous process fluids without the pre-wetting steps required for aqueous applications.
• Internal holdup volume of 60 milliliters minimizes sample loss during capsule filtration, a critical consideration when processing expensive biologics or limited-volume preparations.
• Single-membrane capsule design provides a straightforward retention barrier for applications where feed quality is controlled and extended dirt-holding capacity is not the primary requirement.

Key Capsule Construction Features

• The sealed polypropylene housing is individually integrity-tested during manufacturing, verifying membrane installation and housing seal quality before the device leaves the production facility.
• 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. To support this, 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. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

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

1/4 in. MNPT

Construction

Polypropylene

Diameter

72mm

Dimensions

72mm x 115mm

Filling Bell (Yes/ No)

No

Filtration Area

1000cm²

Flow Rate

2.8 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)

0.45

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable at 121°C for 30 mins

Vent (Yes/ No)

Yes

Weight

0.39

Wettability

Hydrophobic

• Prefiltration - Coarse particle removal upstream of final membrane filters to extend downstream filter service life and throughput.
• Water Treatment - Prefiltration and clarification of process water streams in manufacturing, laboratory, and utility system applications.
• 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.
• 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.