Description
The Vontron SW22-8040 Seawater Reverse Osmosis Membrane is a high-performance 8-inch RO membrane specifically designed for seawater desalination and high-salinity brackish water treatment. Manufactured using advanced Thin Film Composite (TFC) technology, it provides excellent salt rejection, high permeate production, and reliable performance under demanding operating conditions.
The SW22-8040 is ideal for desalination plants, offshore installations, marine vessels, island water supplies, industrial process water, and municipal drinking water production. Its high-performance membrane technology produces high-quality purified water while providing dependable long-term operation.
Features:
- High-performance seawater RO membrane.
- Designed for seawater and high-salinity brackish water desalination.
- Advanced Thin Film Composite (TFC) membrane technology.
- Excellent salt rejection of up to 99.7%.
- High permeate production of up to 6,000 GPD.
- Designed for high-pressure RO applications.
- Suitable for demanding marine and industrial environments.
- Reliable performance with proper pretreatment and operation.
- Helps produce high-quality water for drinking and industrial applications.
- Suitable for standard 8-inch RO membrane pressure vessels.
Specifications:
- Model: SW22-8040.
- Membrane Type: Seawater Thin Film Composite (TFC).
- Membrane Size: 8-inch.
- Active Membrane Area: 400 ft² (37.2 m²).
- Average Permeate Flow: 6,000 GPD (22.7 m³/day).
- Stable Salt Rejection: 99.7%.
- Minimum Salt Rejection: 99.5%.
Testing Conditions:
- Testing Pressure: 800 psi (5.52 MPa).
- Testing Solution Temperature: 25°C.
- Testing Solution Concentration: 32,000 ppm NaCl.
- Testing Solution pH: 8.0.
- Recovery Rate of Single Membrane Element: 8–15%.
Operating Limits:
- Maximum Working Pressure: 1,000 psi (6.9 MPa / 69 bar).
- Maximum Feed Water Flow: 75 GPM (17 m³/h).
- Maximum Feed Water Temperature: 45°C.
- Maximum Feed Water SDI: 5.
- Maximum Residual Chlorine: <0.1 ppm.
- Continuous Operating pH Range: 3–10.
- Chemical Cleaning pH Range: 2–12.
- Maximum Pressure Drop per Membrane Element: 15 psi (0.1 MPa).
- Maximum Pressure Drop per Pressure Vessel with Six RO Membranes: 50 psi (0.34 MPa).
Applications:
- Seawater desalination systems.
- High-salinity brackish water treatment.
- Mnicipal drinking water production.
- Industrial water purification.
- Marine and offshore desalination systems.
- Island water supply systems.
- Ship and vessel water treatment systems.
- Industrial process water.
- High-TDS water purification.
- Water reuse and reclamation applications.
Why Choose the Vontron SW22-8040?
- Excellent salt rejection for high-quality permeate production.
- High permeate flow of up to 6,000 GPD (22.7 m³/day).
- High-pressure design specifically suited to seawater desalination.
- Durable TFC construction provides reliable membrane performance.
- Large 400 ft² membrane area provides high production capacity.
- Suitable for demanding applications including marine, municipal, and industrial desalination.
- Reliable long-term performance when operated with suitable pretreatment and maintenance.
- Cost-effective desalination solution for high-salinity water treatment.









