SWC5 MAX Hydranautics RO Membrane


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SWC5 membranes are designed to provide optimum salt rejection and permeate flows. They are the membranes of choice when lower permeate TDS and lower feed pressures are needed. SWC5 membranes offer highest energy efficiency at lowest costs and are used in the mega desalination plants.

With an increased active surface area, SWC5 MAX provides exceptional salt rejection and high energy efficiency.

SWC5-LD membranes are available in 4.0 and 8.0 inches, SWC5 MAX membranes in 8.0 inch and SWC5 membranes in 16 inch diameters.


Permeate Flow: 9,900 gpd (37.5 m3/d)
Salt Rejection: 99.8 % (99.7 % minimum)


Configuration: Spiral Wound
Membrane Polymer: Composite Polyamide
Membrane Active Area: 440 ft2 (40.9m2)

Application Data

Maximum Applied Pressure: 1200 psig (8.27 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
* The limitations shown here are for general use. For specific projects, operating at more conservative values may ensure the best performance and longest life of the membrane. See Hydranautics Technical Bulletins for more detail on operation limits, cleaning pH, and cleaning temperatures.

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