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Hydranautics Reverse Osmosis Membranes – CPA Range

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When high performance counts, CPA membranes from Hydranautics set the standard for RO membrane elements. CPA membranes provide the highest salt rejection rates available.

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CPA2-4040 – 4″

Permeate Flow2,250 gpd (8.5m3/d)
Salt Rejection99.5 % (99.2% minimum)
ConfigurationSpiral Wound
Membrane PolymerComposite Polyamide
Membrane Active Area85ft2 (7.9m2)
Maximum Applied Pressure600 psig (4.16 MPa)
Maximum Chlorine Concentration<0.1 PPM
Maximum Operating Temperature113ºF (45ºC)
pH Range, Continuous (Cleaning)2-10 (1-12)
Maximum Feedwater Turbidity1.0 NTU
Maximum Feedwater SDI (15 mins)5.0
Maximum Feed Flow16 GPM (3.6m3/h)
Minimum Ratio of concentrate to Permeate flow for any element5:1
Maximum pressure drop for each element10psi

CPA5-LD-4040 – 4″

Permeate Flow2,1000 gpd (7.95m3/d)
Salt Rejection99.7 % (99.5% minimum)
ConfigurationLow Fouling Spiral Wound
Membrane PolymerComposite Polyamide
Membrane Active Area80ft2 (7.43m2)
Maximum Applied Pressure600 psig (4.16 MPa)
Maximum Chlorine Concentration<0.1 PPM
Maximum Operating Temperature113ºF (45ºC)
pH Range, Continuous (Cleaning)2-11 (1-13)
Maximum Feedwater Turbidity1.0 NTU
Maximum Feedwater SDI (15 mins)5.0
Maximum Feed Flow16 GPM (3.6m3/h)
Minimum Ratio of concentrate to Permeate flow for any element5:1
Maximum pressure drop for each element10psi

CPA2 – 8″

Permeate Flow10,000 gpd (37.9m3/d)
Salt Rejection99.7 % (99.5% minimum)
ConfigurationSpiral Wound
Membrane PolymerComposite Polyamide
Membrane Active Area365ft2 (33.9m2)
Maximum Applied Pressure600 psig (4.16 MPa)
Maximum Chlorine Concentration<0.1 PPM
Maximum Operating Temperature113ºF (45ºC)
pH Range, Continuous (Cleaning)2-10 (1-12)
Maximum Feedwater Turbidity1.0 NTU
Maximum Feedwater SDI (15 mins)5.0
Maximum Feed Flow75 GPM (17.0m3/h)
Minimum Ratio of concentrate to Permeate flow for any element5:1
Maximum pressure drop for each element10psi

CPA3 – 8″

Permeate Flow11,000 gpd (41.6m3/d)
Salt Rejection99.7 % (99.6% minimum)
ConfigurationSpiral Wound
Membrane PolymerComposite Polyamide
Membrane Active Area400ft2 (37.1m2)
Maximum Applied Pressure600 psig (4.16 MPa)
Maximum Chlorine Concentration<0.1 PPM
Maximum Operating Temperature113ºF (45ºC)
pH Range, Continuous (Cleaning)2-10.8 (1-12.5)
Maximum Feedwater Turbidity1.0 NTU
Maximum Feedwater SDI (15 mins)5.0
Maximum Feed Flow75 GPM (17.0m3/h)
Minimum Ratio of concentrate to Permeate flow for any element5:1
Maximum pressure drop for each element10psi

CPA5-LD (low fouling technology) – 8″

Permeate Flow11,000 gpd (41.6m3/d)
Salt Rejection99.7 % (99.6% minimum)
ConfigurationLow Fowling Spiral Wound
Membrane PolymerComposite Polyamide
Membrane Active Area400ft2 (37.1m2)
Maximum Applied Pressure600 psig (4.16 MPa)
Maximum Chlorine Concentration<0.1 PPM
Maximum Operating Temperature113ºF (45ºC)
pH Range, Continuous (Cleaning)2-11 (1-13)
Maximum Feedwater Turbidity1.0 NTU
Maximum Feedwater SDI (15 mins)5.0
Maximum Feed Flow75 GPM (17.0m3/h)
Minimum Ratio of concentrate to Permeate flow for any element5:1
Maximum pressure drop for each element10psi

CPA5 MAX – 8″

Permeate Flow12,000 gpd (45.5 m3/d)
Salt Rejection99.7 % (99.6% minimum)
ConfigurationSpiral Wound
Membrane PolymerComposite Polyamide
Membrane Active Area440ft2 (40.9m2)
Maximum Applied Pressure600 psig (4.14 MPa)
Maximum Chlorine Concentration<0.1 PPM
Maximum Operating Temperature113ºF (45ºC)
pH Range, Continuous (Cleaning)2-11 (1-13)
Maximum Feedwater Turbidity1.0 NTU
Maximum Feedwater SDI (15 mins)5.0
Maximum Feed Flow75 GPM (17.0m3/h)
Minimum Ratio of concentrate to Permeate flow for any element5:1
Maximum pressure drop for each element10psi