Hydranautics
SWC4-LD Hydranautics Nitto 6,500 GPD at 800 PSI 8 inch x 40 inch Desalination Machine Seawater Membranes
SWC4-LD Hydranautics Nitto 6,500 GPD at 800 PSI 8 inch x 40 inch Desalination Machine Seawater Membranes
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SWC4-LD Hydranautics Nitto 6,500 GPD at 800 PSI 8 inch x 40 inch Desalination Machine Seawater Membranes
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Hydranautics SWC4-LD Seawater RO Membrane
The Hydranautics SWC4-LD is a high-performance 8-inch seawater reverse osmosis (RO) element designed for large-scale desalination projects and maritime applications. As part of the SWC (Sea Water Composite) series, it is engineered to provide a superior balance between high permeate flow and exceptional salt rejection. The "LD" designation signifies the inclusion of Low Differential technology, which utilizes a specialized feed spacer designed to minimize colloidal fouling and reduce the overall pressure drop across the membrane, resulting in longer intervals between cleanings.
Constructed with an advanced composite polyamide membrane, the SWC4-LD is capable of treating high-salinity feedwater while maintaining energy efficiency. It is a preferred solution for municipal desalination plants, power generation facilities, and offshore platforms that require a reliable source of potable water. With an active surface area of 400 square feet, this element delivers a permeate flow rate of 6,500 gallons per day and achieves a stabilized salt rejection of 99.8%, ensuring the removal of boron and other critical ions to meet stringent water quality standards.
| SPECIFICATION | DETAILS |
| Model Number | SWC4-LD |
| Manufacturer | Hydranautics (Nitto) |
| Membrane Type | Composite Polyamide |
| Element Dimensions | 8.0" Diameter x 40" Length |
| Permeate Flow Rate | 6,500 GPD (24.6 m³/d) |
| Stabilized Salt Rejection | 99.8% |
| Minimum Salt Rejection | 99.7% |
| Active Surface Area | 400 ft² (37.2 m²) |
| Feed Spacer Thickness | 34 mil |
| Test Pressure | 800 psi (5.5 MPa) |
| Max Operating Pressure | 1,200 psig (8.27 MPa) |
| Max Operating Temp | 113°F (45°C) |
| pH Range (Continuous) | 2 – 11 |
| pH Range (Cleaning) | 1 – 13 |
| 8.0" Elements | |||||
| Model # | Diameter x Length | GPD | Rejection | Typical Pressure | |
| SWC4-LD | 8.0 x 40 | 6,500 | 99.80% | 800 | |
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