SWC5-LD-4040 Hydranautics Nitto 1,200 PSI 1,750 GPD 4 x 40 inch Membranes
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🚢 Hydranautics SWC5-LD-4040 Seawater Reverse Osmosis Membrane
The Hydranautics SWC5-LD-4040 is a professional-grade, high-rejection Seawater Reverse Osmosis (SWRO) membrane element designed to deliver superior permeate quality from high-salinity feed sources. As part of the globally recognized SWC (Seawater Composite) series, this 4-inch diameter element is engineered for medium-sized desalination systems used in marine, offshore, and industrial applications where reliable salt rejection is critical.
The "LD" (Low Differential Pressure) technology is the standout feature of this model. It utilizes a proprietary 34 mil feed spacer designed to minimize the trapping of colloidal particles and reduce biological fouling. This results in a lower pressure drop across the element over time, leading to reduced energy consumption and more effective chemical cleanings. With a nominal salt rejection rate of 99.8%, the SWC5-LD-4040 provides an exceptional barrier against dissolved solids and boron, ensuring the production of high-purity drinking water even in challenging seawater environments.
| SPECIFICATION |
DETAILS |
| Model Number |
SWC5-LD-4040 |
| Manufacturer |
Hydranautics (Nitto) |
| Membrane Type |
Seawater Reverse Osmosis (SWRO) |
| Element Dimensions |
4.0" Diameter x 40" Length |
| Nominal Permeate Flow |
1,750 GPD (6.6 m3/d) |
| Nominal Salt Rejection |
99.8% |
| Minimum Salt Rejection |
99.7% |
| Active Surface Area |
80 ft2 (7.4 m2) |
| Feed Spacer Thickness |
34 mil |
| Max Operating Pressure |
1,200 psi (8.27 MPa) |
| Max Operating Temp |
113∘F (45∘C) |
| Max Feed Flow Rate |
16 gpm (3.6 m3/h) |
| pH Range (Continuous) |
2 – 11 |
| pH Range (Cleaning) |
1 – 13 |
