KOCH SaniPro HFK Ultrafiltration Element 10K MWCO PES 37 in Long 4.3 in Diameter

KOCH 3838-HFK-131 Sani-Pro HFK Ultrafiltration Element – 10K MWCO, PES, 3838 Format

The KOCH 3838-HFK-131 is an industrial-grade ultrafiltration membrane element engineered for critical separation and concentration tasks in sanitary processing environments. Utilizing a high-flux Polyethersulfone (PES) membrane with a 10,000 Dalton (10K) Molecular Weight Cut-Off, this element is optimized for the recovery of proteins, enzymes, and other valuable macromolecules. The spiral-wound design incorporates a 31-mil feed spacer to minimize fouling and facilitate effective cleaning. Measuring 37 inches in length with a 4.3-inch diameter, the 3838-HFK-131 is built to comply with strict 3-A, FDA, and USDA sanitary standards. Its robust construction allows for high-temperature operation and exposure to aggressive oxidative cleaning agents, ensuring a long service life and consistent performance in demanding dairy, biotech, and food-processing applications.

Technical Performance and Design

• Polyethersulfone (PES) Membrane: Offers a neutral charge and high chemical resistance, providing a stable platform for high-yield protein concentration with minimal membrane-analyte interaction.

• 10K MWCO Precision: Provides a sharp molecular weight cut-off, ensuring the retention of targets above 10,000 Daltons while allowing salts and smaller contaminants to pass through into the permeate.

• Sanitary Spiral-Wound Construction: Designed without a persistent outer wrap (netted design) to eliminate stagnant zones, ensuring that the entire element is accessible to CIP chemicals for a complete microbial kill.

• Thermal and Chemical Resilience: Engineered to withstand operating temperatures up to 131°F (55°C) and pH ranges from 2.0 to 11.5, allowing for aggressive sanitization protocols without compromising membrane integrity.

Product Specifications

• Catalog Number: 3838-HFK-131-NYV

• Dimensions: 37.5 in. Length x 3.8 in. Diameter (Nominal 4-inch/3838 Housing Fit)

• Membrane Area: Approximately 68–72 sq. ft. (Model dependent)

• Feed Spacer: 31 mil (standard for protein/dairy applications)

• MWCO: 10,000 Daltons

• Material: Polyethersulfone (PES) on Polyester backing

Key Benefits & Applications

• Dairy Processing: The industry standard for milk and whey protein concentration (WPC), allowing for the production of high-value protein isolates and concentrates.

• Enzyme Recovery: Ideal for the concentration of industrial enzymes from fermentation broths, ensuring high activity recovery and efficient removal of metabolic byproducts.

• Gelatin Concentration: Provides the mechanical strength and flux required to process high-viscosity gelatin solutions while maintaining clarity and color standards.

• Regulatory Compliance: Manufactured with materials that meet FDA and European requirements for food-contact surfaces, ensuring the final product meets safety and quality certifications.

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