Dairy-Pro 6338 UF 5K/10K

Summary

Product identification

• Product Name: Dairy-Pro™ UF-10K and UF-5K ELEMENTS
• Series: Ultrafiltration Sanitary Spiral Element Series
• Membrane Chemistry: Proprietary semi-permeable polyethersulfone (PES) layer on a polyester backing material.
• Membrane Type:
  • UF-10K with observed separation range of 10,000 Daltons
  • UF-5K with observed separation range of 5,000 Daltons
• Construction: Sanitary spiral wound element with net outer wrap
• Regulatory Status:
  • Compliant with US FDA CFR Title 21
  • EC Reg. No. 1935/2004
  • EU Reg. No. 10/2011
  • Halal-certified by the Islamic Food and Nutrition Council of America (IFANCA)
• Options:
  • Diameter: 6.3”, 6.4”, 7.8”, or 8.0”
  • Feed Spacer: 30 mil, 45 mil, or 62 mil
  • Outer wrap: Controlled or trimmable
• Nominal Membrane Area:
  • 6338 UF 5K/10K:
    • 30-mil Spacer: 250 ft² (23.2 m²)
    • 45-mil Spacer: 194 ft² (18.0 m²)
    • 62-mil Spacer: 142 ft² (13.2 m²)
  • 6438 UF 5K/10K:
    • 30-mil Spacer: 250 ft² (23.2 m²)
    • 45-mil Spacer: 194 ft² (18.0 m²)
    • 62-mil Spacer: 142 ft² (13.2 m²)
  • 7838 UF 5K/10K:
    • 30-mil Spacer: 380 ft² (35.3 m²)
    • 45-mil Spacer: 297 ft² (27.6 m²)
  • 8038 UF 5K/10K:
    • 30-mil Spacer: 400 ft² (37.3 m²)
    • 45-mil Spacer: 308 ft² (28.7 m²)
    • 62-mil Spacer: 215 ft² (20.0 m²)
• Configuration Notes:
  • 6438, 7838, and 8038 elements are only available in controlled OD configuration.
  • 6338 elements are only available in trimmable OD configuration.

Operating limits

• Typical Operating Pressure: 30 - 120 psi (2.1 - 8.3 bar)
• Maximum Operating Pressure: 140 psi (9.7 bar)
• Operating Temperature Range: 41 - 131°F (5 – 55°C)
• Cleaning Temperature Range: 105 - 122°F (40 – 50°C)
• Allowable pH - Continuous Operation: 2.0 - 10.0
• Allowable pH - Clean-In-Place (CIP): 1.8 - 11.0
• Design Pressure Drop Per Element:
  • 30-mil: 12-15 psi (0.8-1.0 bar)
  • 45-mil: 15-20 psi (1.0-1.4 bar)
  • 62-mil: 15-25 psi (1.0-1.7 bar)
• Design Pressure Drop Per Vessel (3 in series):
  • 30-mil: 36-45 psi (2.5-3.1 bar)
  • 45-mil: 45-60 psi (3.1-4.1 bar)
  • 62-mil: 45-75 psi (3.1-5.2 bar)
• Design Pressure Drop Per Vessel (4 in series):
  • 30-mil: 48-60 psi (3.3-4.1 bar)
  • 45-mil: 60-68 psi (4.1-4.7 bar)
• Permeate Pressure: Should not exceed baseline (concentrate) pressure at any time (including on-line, off-line, and during transition). Reverse pressure will damage the membrane.
• Differential Pressure: Maximum differential pressures per element and for multi-element housings are specified.

Feed water

• Maximum Turbidity: 1 NTU
• Maximum SDI: 5.0 (15-minute test)
• Water Quality for Cleaning & Diafiltration: Refer to the KMS “Water Quality Guidelines for CIP and Diafiltration” for more detailed information.

Mechanical / hydraulic

• Nominal Dimensions:
  • 6338:
    • Length (A): 38.0 inches (965 mm)
    • Diameter (B): 6.3 inches (160 mm)
    • Inner Diameter (C): 1.138 inches (28.9 mm)
  • 6438:
    • Length (A): 38.0 inches (965 mm)
    • Diameter (B): 6.4 inches (162 mm)
    • Inner Diameter (C): 1.138 inches (28.9 mm)
  • 7838:
    • Length (A): 38.0 inches (965 mm)
    • Diameter (B): 7.7 inches (197 mm)
    • Inner Diameter (C): 1.138 inches (28.9 mm)
  • 8038:
    • Length (A): 38.0 inches (965 mm)
    • Diameter (B): 7.9 inches (201 mm)
    • Inner Diameter (C): 1.138 inches (28.9 mm)

General Notes

• Chlorine and Chemical Exposure:
  • Adherence to cleaning and sanitizing procedures (chemical concentrations, pH, temperature, exposure time) is necessary for maximum element life.
  • Recommended chlorine exposure time: 30 minutes per day.
  • Residual chlorine concentration during cleaning cycle (CIP): 150 ppm @ pH 10.5-11.0.
  • Chlorine concentration should never exceed 200 ppm.
  • Chlorine should only be added to the cleaning solution after the pH has been adjusted to 10.5-11.0.
  • Iron or other catalyzing metals in the presence of free chlorine or hydrogen peroxide will accelerate membrane degradation.
  • Sanitizing should only be done after a complete cleaning cycle and with water of acceptable quality.
• Cationic Polymers and Surfactants: Dairy-Pro™ UF membranes may be irreversibly fouled if exposed to cationic (positively charged) polymers or surfactants. Exposure to these chemicals is not recommended and will void the warranty.
• Lubricants: For element installation, use only water or glycerin to lubricate seals. The use of petroleum or vegetable-based oils or solvents may damage the element and will void the warranty.

Disclaimer: This summary is based on the provided text extract. The original OEM PDF may contain additional figures, footnotes, or more recent revisions. Contractual data must match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet