Seawater RO Membrane Elements
Specifically engineered to treat high-salinity seawater and brackish sources.
8040 and 4040 seawater elements (SWRO)
Hi-Tech seawater RO elements use spiral-wound thin-film composite construction. Listed 8040 and 4040 high-rejection models reach up to 99.8% salt rejection at 32,000 ppm NaCl and 55.2 bar (800 psi) test conditions. Elements undergo 100% vacuum integrity testing and carry serial numbers.
Seawater test performance
Seawater RO elements for desalination plants and coastal facilities. Listed high-rejection models reach up to 99.8% salt rejection at 32,000 ppm NaCl and 55.2 bar (800 psi) test pressure.
Salt Rejection
High Rejection & Fouling Resistant
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Test conditions: flow and rejection at 32,000 ppm NaCl, 25 °C (77 °F), 55.2 bar (800 psi), pH 7 (± 1.0), 8% recovery
- Active Area m² (ft²)
- 7.6 (82)
- Test pressure bar (psi)
- 55.2 (800)
- Permeate Flow m³/d (GPD)
- 6.1 (1600)
- Salt Rejection %
- 99.7%
- Feed Spacer mil
- 34
Test conditions: flow and rejection at 32,000 ppm NaCl, 25 °C (77 °F), 55.2 bar (800 psi), pH 7 (± 1.0), 8% recovery
- Active Area m² (ft²)
- 37.2 (400)
- Test pressure bar (psi)
- 55.2 (800)
- Permeate Flow m³/d (GPD)
- 28.0 (7400)
- Salt Rejection %
- 99.8%
- Feed Spacer mil
- 34
Test conditions: flow and rejection at 32,000 ppm NaCl, 25 °C (77 °F), 55.2 bar (800 psi), pH 7 (± 1.0), 8% recovery
High Rejection
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Test conditions: flow and rejection at 32,000 ppm NaCl, 25 °C (77 °F), 55.2 bar (800 psi), pH 7 (± 1.0), 8% recovery
- Active Area m² (ft²)
- 7.6 (82)
- Test pressure bar (psi)
- 55.2 (800)
- Permeate Flow m³/d (GPD)
- 5.0 (1320)
- Salt Rejection %
- 99.7%
- Feed Spacer mil
- 28
Test conditions: flow and rejection at 32,000 ppm NaCl, 25 °C (77 °F), 55.2 bar (800 psi), pH 7 (± 1.0), 8% recovery
- Active Area m² (ft²)
- 37.2 (400)
- Test pressure bar (psi)
- 55.2 (800)
- Permeate Flow m³/d (GPD)
- 24.6 (6500)
- Salt Rejection %
- 99.8%
- Feed Spacer mil
- 28
Test conditions: flow and rejection at 32,000 ppm NaCl, 25 °C (77 °F), 55.2 bar (800 psi), pH 7 (± 1.0), 8% recovery
High Rejection & Low Energy
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Test conditions: flow and rejection at 32,000 ppm NaCl, 25 °C (77 °F), 55.2 bar (800 psi), pH 7 (± 1.0), 8% recovery
- Active Area m² (ft²)
- 2.6 (28)
- Test pressure bar (psi)
- 55.2 (800)
- Permeate Flow m³/d (GPD)
- 2.6 (680)
- Salt Rejection %
- 99.6%
- Feed Spacer mil
- 28
Test conditions: flow and rejection at 32,000 ppm NaCl, 25 °C (77 °F), 55.2 bar (800 psi), pH 7 (± 1.0), 8% recovery
Extra Low Energy
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Test conditions: flow and rejection at 32,000 ppm NaCl, 25 °C (77 °F), 55.2 bar (800 psi), pH 7 (± 1.0), 8% recovery
- Active Area m² (ft²)
- 7.6 (82)
- Test pressure bar (psi)
- 55.2 (800)
- Permeate Flow m³/d (GPD)
- 6.3 (1660)
- Salt Rejection %
- 99.6%
- Feed Spacer mil
- 28
Test conditions: flow and rejection at 32,000 ppm NaCl, 25 °C (77 °F), 55.2 bar (800 psi), pH 7 (± 1.0), 8% recovery
- Active Area m² (ft²)
- 37.2 (400)
- Test pressure bar (psi)
- 55.2 (800)
- Permeate Flow m³/d (GPD)
- 34.1 (9000)
- Salt Rejection %
- 99.8%
- Feed Spacer mil
- 28
Test conditions: flow and rejection at 32,000 ppm NaCl, 25 °C (77 °F), 55.2 bar (800 psi), pH 7 (± 1.0), 8% recovery
Parallel-Channel STRO — Seawater · ZLD · DTRO Replacement
SW-34P-365-HRFR is a spiral-wound STRO element with parallel open feed channels, designed for qualified DTRO system retrofits. Rated to 120 bar (1,740 psi) for seawater desalination, Zero Liquid Discharge and high-TDS brine concentration.
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Test conditions: flow and rejection at 32,000 ppm NaCl, 25 °C (77 °F), 55.2 bar (800 psi), pH 8, 8% recovery
- Active Area m² (ft²)
- 33.9 (365)
- Test pressure bar (psi)
- 55.2 (800)
- Permeate Flow m³/d (GPD)
- 18.0 (4755)
- Salt Rejection %
- 99.5%
- Feed Spacer mil
- 34
Test conditions: flow and rejection at 32,000 ppm NaCl, 25 °C (77 °F), 55.2 bar (800 psi), pH 8, 8% recovery
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