8338-MFK-601

Summary

Product identification

KMS MFK™ Food & Dairy microfiltration elements are available in 4”, 6”, and 8” spiral-wound series.

• Membrane Chemistry: Proprietary semi-permeable polyethersulfone (PES) layer on a polyester backing material.
• Membrane Type:
  • MFK™-618 with observed separation range of 0.1 micron
  • MFK™-601 with observed separation range of 0.4 micron
• Construction: Sanitary spiral wound with net outer wrap.
• Regulatory Status: Conforms to USDA 3-A standards and FDA regulations (CFR Title 21).
• Options:
  • Diameter: 3.8”, 6.3”, or 8.3”
  • Feed Spacer: N (31 mil), V (46 mil), H (62 mil), F (80 mil), D (100 mil), or E (135 mil)
  • Outer wrap: Controlled (e.g., NYV) or trimmable (e.g., NYT)

Specifications

Active membrane area varies by model and selected feed spacer type. Not all combinations are available.

• Pure Water Flux: 2.0-4.4 gfd/psi at 77°F (25°C) for both MFK-601 and MFK-618 membranes.

See the official PDF for exact tabulated values for active membrane area based on model and spacer.

Operating limits

• Typical Operating Pressure: 30 - 120 psi (2.1 - 8.3 bar)
• Maximum Operating Pressure: 140 psi (9.7 bar)
• Typical Operating Temperature Range: 41 - 131°F (5 - 55°C)
• Maximum Operating Temperature:
  • At pH 6.0 - 7.5: 150°F (65.5°C)
  • At pH 3.5 - 6.0: 140°F (60°C)
  • At pH 2.0 - 3.5 and 7.5 – 10.0: 131°F (55°C)
• Cleaning (CIP) Temperature Range: 104 - 122°F (40 - 50°C)
• Allowable pH - Continuous Operation: 2.0 - 10.0
• Allowable pH - Clean-In-Place (CIP): 1.8 - 11.0
• Permeate Pressure: Must not exceed baseline (concentrate) pressure at any time; reverse pressure will damage the membrane.
• Design Pressure Drop Per Element:
  • N spacer: 5-15 psi (0.3-1.0 bar)
  • V spacer: 5-20 psi (0.3-1.4 bar)
  • H, F, D or E spacer: 10-20 psi (0.7-1.4 bar)
• Design Pressure Drop Per Vessel (3 In Series):
  • N spacer: 15-45 psi (1.0-3.1 bar)
  • V spacer: 15-60 psi (1.0-4.1 bar)
  • H, F, D or E spacer: 30-60 psi (2.1-4.2 bar)

Feed water

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

Cleaning and Chemical Exposure

• Chlorine Exposure:
  • Recommended exposure time: 30 minutes per day.
  • Residual chlorine concentration during CIP: 150 ppm @ pH 10.5 or higher.
  • Chlorine concentration must never exceed 200 ppm.
  • Chlorine should only be added to cleaning solution after pH is adjusted to 10.5 or higher.
  • Presence of iron or other catalyzing metals with free chlorine or hydrogen peroxide will accelerate membrane degradation.
• Cationic (Positively Charged) Polymers and Surfactants: Exposure during operation or cleaning is not recommended and will void the warranty, as it may cause irreversible fouling.
• Lubricants: For installation, use only water or glycerin. Petroleum or vegetable-based oils/solvents may damage the element and void the warranty.

Mechanical / hydraulic

Nominal dimensions are as follows:

Supplemental Technical Bulletins

• MF Element Cleaning Procedures
• Water Quality Guidelines for CIP and Diafiltration

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions. Contractual data must match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet