Back to Koch Membrane Systems (Fluid Systems™)
Kovalus logo

Datasheet summary

8838 MFK-601

Engineering summary from PDF text extraction for 8838 MFK-601. Verify every value with the OEM datasheet.

Summary

Product identification

  • Product Line: KMS MFK™ FOOD & DAIRY MF ELEMENTS
  • Element Type: Microfiltration spiral-wound elements
  • Membrane Chemistry: Proprietary semi-permeable polyethersulfone (PES) layer on a polyester backing material.
  • Membrane Types:
    • 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)
  • Element 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)
  • Active Membrane Area: Available in various configurations of model and feed spacer type. See the official PDF for exact tabulated values for specific models and feed spacer combinations.
  • Pure Water Flux (MFK-601 and MFK-618 membranes): 2.0-4.4 gfd/psi at 77°F (25°C).

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: Should not exceed baseline (concentrate) pressure at any time. Reverse pressure will damage the membrane.
  • Design Pressure Drop Per Element (Maximum Differential Pressure per module):
    • 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)
  • Chlorine Exposure:
    • Recommended chlorine exposure time: 30 minutes per day.
    • Residual chlorine concentration during cleaning cycle (CIP): 150 ppm @ pH 10.5 or higher.
    • Chlorine concentration should never exceed 200 ppm.
    • Chlorine should only be added to cleaning solution after pH has been adjusted to 10.5 or higher.
  • Chemical Sensitivities:
    • Iron or other catalyzing metals in the presence of free chlorine or hydrogen peroxide will accelerate membrane degradation.
    • Exposure to cationic (positively charged) polymers or surfactants during operation or cleaning is not recommended and will void the warranty due to irreversible fouling risk.

Mechanical / hydraulic

  • Nominal Dimensions:
    • 3838 MFK-601/618: Length (A) 38.0 inches (965 mm), Diameter (B) 3.8 inches (96 mm), Internal Diameter (C) 0.831 inches (21.1 mm)
    • 6338 MFK-618: Length (A) 38.0 inches (965 mm), Diameter (B) 6.3 inches (160 mm), Internal Diameter (C) 1.138 inches (28.9 mm)
    • 8338 MFK-601/618: Length (A) 38.0 inches (965 mm), Diameter (B) 8.3 inches (211 mm), Internal Diameter (C) 1.138 inches (28.9 mm)
  • Installation Lubricants: Use only water or glycerin to lubricate seals. Petroleum or vegetable-based oils or solvents may damage the element and will void the warranty.

Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the original OEM PDF. For contractual data and complete product information, always refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

PDF datasheet

Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.