Describe the intake
Open intake or beach well, feed TDS, temperature range, SDI and known organic or biological risk.
Seawater Desalination RO
OV-SW seawater RO membrane elements.
OV-SW elements are engineered for seawater, sub-seawater and high-salinity brackish water. LE, HR, FR, XLE and XHR options allow engineers to balance productivity, rejection and fouling resistance across desalination duties.
Product Advantages
Designed around the application.
- Up to 99.85% stabilized rejection
- Low-energy and high-rejection options
- 4040 and 8040 industrial formats
- Solutions for seawater and high-salinity feed
Typical Applications
- Seawater desalination
- High-salinity brackish water
- Power plant make-up water
- Wastewater reuse and leachate treatment
Typical Properties
Model performance data.
Values are based on the defined test conditions below. Actual system performance depends on feed-water quality, pressure, temperature, recovery and pretreatment.
| Model | Stabilized rejection | Minimum rejection | Permeate flow | Active membrane area |
|---|---|---|---|---|
| OV-SW-2521 | 99.7% | 99.6% | 300 GPD (1.1 m3/d) | 14 ft2 (1.3 m2) |
| OV-SW-2540 | 99.7% | 99.6% | 600 GPD (2.3 m3/d) | 30 ft2 (2.8 m2) |
| OV-SW-4040-LE | 99.8% | 99.6% | 1,900 GPD (7.2 m3/d) | 90 ft2 (8.4 m2) |
| OV-SW-4040-HR | 99.8% | 99.7% | 1,600 GPD (6.1 m3/d) | 90 ft2 (8.4 m2) |
| OV-SW-8040-LE 400 | 99.8% | 99.6% | 9,000 GPD (34.0 m3/d) | 400 ft2 (37.2 m2) |
| OV-SW-8040-HR 400 | 99.8% | 99.7% | 7,500 GPD (28.4 m3/d) | 400 ft2 (37.2 m2) |
| OV-SW-8040-LE 440 | 99.8% | 99.6% | 9,900 GPD (37.4 m3/d) | 440 ft2 (40.9 m2) |
| OV-SW-8040-XHR 400 | 99.85% | 99.75% | 7,000 GPD (26.5 m3/d) | 400 ft2 (37.2 m2) |
Standard Test Conditions
Test pressure800 psi (5.52 MPa)
Feed concentration32,000 ppm NaCl
Feed temperature25 C
Single-element recovery8%
Operating & Cleaning Limits
Maximum operating pressure1,200 psi (8.3 MPa)
Maximum feed flow75 gpm (8040) / 16 gpm (4040)
Maximum feed temperature45 C
Maximum feed SDI155
Free chlorine tolerance< 0.1 ppm
Continuous operating pH2-11
Cleaning pH1-13
Maximum element pressure drop15 psi (0.10 MPa)
Technical Document
OV-SW Series Datasheet
Download the original technical sheet used for the model data on this page.
Project Evaluation
Confirm seawater duty before selecting an element.
OV-SW low-energy, high-rejection and fouling-resistant models are not interchangeable. Selection depends on the intake, salinity, temperature, pretreatment, recovery and target permeate quality.
Define the duty
Required permeate flow, target water quality, design recovery, operating pressure and vessel configuration.
Compare the series
Review the selected model's published test conditions, membrane area, pressure limit and cleaning limits.
Validate the proposal
Confirm the final model against system design calculations and the approved technical datasheet before ordering.
For a Useful Quotation
Send the engineering data with the commercial request.
Include the current membrane model if this is a replacement project, plus quantity, destination country and any documentation or private-label requirements. Availability and commercial terms are confirmed with the quotation.
- Feed-water source, TDS and temperature
- SDI, pretreatment and fouling history
- Target flow, rejection, recovery and pressure
- Element size, vessel count and current model
- Quantity, destination and required documents
SWRO PROJECT REVIEW
Review an OV-SW desalination duty.
Provide the seawater analysis, temperature, design pressure, recovery, target permeate quality, element size and quantity before selecting an SWRO model.
- Residential, commercial, 4040 and 8040 RO membranes
- OEM branding, private label and technical documents
- Industrial, seawater and specialty water applications
Technical Inquiry