Hydranautics
SWC5-LD-4040 Hydranautics Nitto Membranes
SWC5-LD-4040 Hydranautics Nitto Membranes
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SWC5-LD-4040 Hydranautics Nitto Membranes
Hydranautics SWC5-LD-4040 Seawater RO Membrane
The Hydranautics SWC5-LD-4040 (manufactured by a Nitto Group Company) is a high-performance, 4-inch by 40-inch seawater composite (SWC) reverse osmosis membrane engineered for industrial and commercial desalination. This low-fouling, spiral-wound element is constructed using advanced composite polyamide polymer technology. It integrates Hydranautics' proprietary Low Differential (LD) Technology, utilizing a 34-mil feed spacer that minimizes colloidal fouling when paired with conventional pre-treatment equipment. This specialized spacer design ensures consistently low feed pressures, optimizes flow dynamics, and significantly extends the duration between required cleanings for continuous-duty systems.
Designed for demanding seawater and high-salinity applications, the SWC5-LD-4040 delivers a highly efficient permeate flow rate of 1,750 GPD (6.62 m³/d) combined with an exceptional nominal salt rejection of 99.7%. The element features 80 square feet of active membrane area and operates efficiently at a standard test pressure of 800 PSI. Built to withstand rigorous operational environments, this robust membrane safely accommodates a maximum applied pressure of 1200 PSI, a maximum feed flow of 16 GPM, and liquid temperatures up to 113°F (45°C). By combining high energy efficiency with optimized permeate output, it is the premier choice for mega desalination plants and high-demand commercial watermakers.
| SPECIFICATION | DETAILS |
|---|---|
| Model Number | SWC5-LD-4040 |
| Manufacturer | Hydranautics (Nitto) |
| Element Type | Seawater RO Membrane |
| Membrane Technology | Composite Polyamide |
| Active Membrane Area | 80 ft² (7.43 m²) |
| Permeate Flow Rate | 1,750 GPD (6.62 m³/d) |
| Nominal Salt Rejection | 99.7% |
| Minimum Salt Rejection | 99.5% |
| Test Pressure | 800 PSI (5.5 MPa) |
| Max Applied Pressure | 1200 PSI (8.27 MPa) |
| Max Feed Flow Rate | 16 GPM (3.6 m³/h) |
| Feed Spacer Thickness | 34 mil |
| Max Operating Temp | 113°F (45°C) |
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