КН 4040-C

Summary

Product identification

• Model: КН 4040-C
• Membrane Material: Composite polyamide (ORМ32К)
• Membrane Type: Spiral wound nanoRO
• Application: Reverse osmosis membrane element for brackish water desalination
• Series: КH Series

Operating limits

• Recommended Operation Pressure: 0.9-1.2 MPa
• Maximum Operation Pressure: 4.1 MPa
• Maximum Pressure Drop: 0.1 MPa
• Operation Temperature: 4-45 °С
• pH at Continuous Operation:
  • At T<35°С: 2-11
  • At T<45°С: 3-10.5
• Chemical Cleaning Temperature: The document indicates different pH limits for chemical cleaning based on temperature (see CIP pH).
• CIP pH (Short Time Operation):
  • At T<45°С: 2-11
  • At T<35°С: 1-11.5
  • At T<25°С: 1-12
• Free Chlorine Content (max): 0.1 mg/l
• Note: During continuous work with pH over 10, the temperature must not exceed 35°С.

Feed water

• Maximum Feed Flow: 3.6 m³/hr
• Concentrate/Permeate Ratio on each element (min): 5:1
• SDI (15 minutes test, max): 5
• Turbidity (max): 1 NTU

Product water

• Nominal Flow: 380 l/hr (2400 GPD)
• Nominal Rejection: 99.2%
• Minimal Rejection: 98.5%
• Active Membrane Area: 8.0 m² (86 ft²)

Test Conditions

• Test Solution: NaCl 1500 mg/l
• Pressure: 1.0 MPa
• Temperature: 25 °С
• pH: 7.5
• Recovery: 15%
• Note: Flow of each single element in a batch may vary by +15% / -20%. Minimal rejection of a new element is measured after 20 minutes’ test on test solution. Nominal rejection is reached after 48 hours of continuous operation on test solution.

Mechanical / hydraulic

• Dimensions (КН 4040-C):
  • A: 1016 mm
  • B: 101.6 mm
  • B’ (ATD): 100.3 mm
  • C: 19.1 mm
  • D: 26.7 mm
• Weight: 4.5 kg
• Feed Spacer Thickness: 0.71 mm (28 mil)
• Components: Brine Seal, Feed, Interconnector (supplied with each element), Fiberglass Shell.

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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 OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet