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Hydranautics CPA6-LD Membrane

Product Description

CPA6-LD is the fifth generation CPA brackish water RO membrane and has the best rejection of all of its predecessors at 99.8%. This 400 sq. ft. membrane operates at a higher feed pressure than CPA5-LD but it has the highest rejection in the CPA family.

CPA6-LD membranes are designed with Low Differential Pressure LDTM Technology designed to minimize colloidal fouling. They have 37.0 m2 (400 ft2) membrane area. Using CPA6-LD results in cost saving while still getting a high rejection from membranes.

CPA6-MAX has the same high rejection membrane of CPA6-LD, but features a 10% increase in membrane area at 440 sq.ft. CPA6 MAX is a preferred choice for feed waters of low turbidity and silt density index such as brackish well waters.

CPA6-LD and CPA6-MAX membranes are available in diameters of 8.0 inches only.

[custom-specifications]CPA6-LD Specifications:

  • Permeate Flow: 8,000 gpd (30.3m3/d)
  • Salt Rejection: 99.75 % (99.6 % minimum)
  • Type Configuration: Low Fouling Spiral Wound
  • Membrane Polymer: Composite Polyamide
  • Membrane Active Area: 400 ft2 (37.1m2)
  • Feed Spacer: 34 mil (0.864 mm)

The stated performance is initial (data taken after 30 minutes of operation), based on the following conditions:

  • 1500 PPM NaCl solution
  • 225 psi (1.55 MPa) Applied Pressure
  • 77 °F (25 °C) Operating Temperature
  • 15% Permeate Recovery
  • 6.5 - 7.0 pH Range

 [/custom-specifications]

[custom-features]

Standard Operating Limits:

  • Maximum Applied Pressure: 600 psig (4.14 MPa)
  • Maximum Chlorine Concentration: < 0.1 PPM
  • Maximum Operating Temperature: 113 °F (45 °C)
  • pH Range, Continuous (Cleaning): 2-11 (1-13)
  • Maximum Feedwater Turbidity: 1.0 NTU
  • Maximum Feedwater SDI (15 mins): 5.0
  • Maximum Feed Flow: 75 GPM (17.0 m3/h)
  • Minimum Ratio of Concentrate to
  • Permeate Flow for any Element: 5:1
  • Maximum Pressure Drop for Each Element: 15 psi

 [/custom-features]

[custom-usage]

Ideal Applications Include:

  • Desalting of Well Waters – Municipal Drinking Water
  • Reducing TDS Prior to Ion Exchange
  • Boiler Make-Up Water
  • Ultrapure Water for Semi-Conductor Manufacture

 [/custom-usage]

[custom-documents]Hydranautics CPA6-LD Membrane Data Sheet [/custom-documents]
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