K 4040-C

Summary

Product identification

• Membrane material: Composite polyamide
• Membrane type: nanoRO
• Design: Spiral wound
• Application: Reverse osmosis membrane elements for brackish water desalination
• Series: K Series
• Models: K 4040-C, K 4040-C-DRY

Product Specifications

(Measured under test conditions: NaCl 1500 mg/l solution, Pressure=1.55 MPa, Temperature=25 °С, pH=7.5, Recovery=15%)

• Flow: 380 l/hr (2400 GPD)
  • Flow of each single element in a batch may vary for +25% / -15%.
• Normal rejection: 99.5%
  • Nominal rejection is reached after 48 hours of continuous operation on test solution.
• Minimal rejection:
  • K 4040-C: 99.1%
  • K 4040-C-DRY: 99.0%
  • Minimal rejection is of a new element after 20 minutes’ test on test solution.
• Active membrane area: 8.0 m² (86 ft²)
• Feed spacer thickness: 0.71 mm (28 mil)

Operating limits

• Recommended operation pressure: 1.2-2.0 MPa
• Maximum operation pressure: 4.1/2.1 MPa (glass fiber/tape overwrap)
• Maximum pressure drop: 0.07 MPa
• Operation temperature: 4-45 °С
• pH at continuous operation:
  • At T<35°С: 2-11
  • At T<45°С: 3-10.5
  • Note: During continuous work with pH over 10, the temperature must not exceed 35°С.
• Chemical cleaning temperature: T<45 °С
• CIP pH (short time operation):
  • At T<45 °С: 2-11
  • At T<35 °С: 1-11.5
  • At T<25 °С: 1-12
• Maximum free chlorine content: 0.1 mg/l
• Maximum feed flow: 3.6 m³/hr
• Minimum concentrate/permeate ratio on each element: 5:1

Feed water

• SDI (15 minutes test), maximum: 5
• Turbidity, maximum: 1 NTU

Mechanical / hydraulic

• Dimensions (mm):
  • Length (A): 1016
  • Outer Diameter (B): 101.6
  • ATD Diameter (B'): 100.3
  • Permeate Tube ID (C): 19.1
  • Permeate Tube OD (D): 26.7
• Weight (kg):
  • K 4040-C: 4.5
  • K 4040-C-DRY: 4
• Components: An interconnector is supplied with each element. The element design includes a Brine Seal, Feed, Brine, and a Fiberglass Shell.

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Disclaimer: This summary is based solely on the extracted text. It may not include all figures, footnotes, or the latest revisions present in the complete OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet