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Aqua Best DOW FILMTEC SW30-4040 Membrane

DOW FilmTec SW30-4040 Seawater RO Membrane

The DOW FilmTec SW30-4040 is a compact and durable reverse osmosis (RO) membrane engineered for seawater desalination. Delivering a production capacity of up to 1,200 gallons per day (4.5 m³/day) and a nominal salt rejection rate of 99.5%, it ensures reliable high-purity water production. Designed for high-pressure operations up to 1,200 psi (83 bar), it is ideal for commercial and industrial desalination systems where efficiency, consistency, and durability are required.


Key Features & Benefits

  • 🌊 High Salt Rejection: Removes up to 99.5% of dissolved salts for superior water quality.

  • Reliable Performance: Produces up to 1,200 GPD, suitable for medium-scale seawater applications.

  • 🛡️ Compact & Durable: 4-inch diameter membrane for space-saving installations in commercial setups.

  • 🔧 Versatile Applications: Works effectively in small industrial units, offshore facilities, and commercial desalination systems.

  • 🌍 Trusted Technology: Backed by DOW FilmTec’s global expertise in RO membrane innovation.


Technical Specifications

  • Type: Thin-Film Composite (TFC) RO element for seawater

  • Production Capacity: 1,200 gallons per day (4.5 m³/day)

  • Nominal Salt Rejection: 99.5%

  • Active Membrane Area: 85 ft² (7.9 m²)

  • Maximum Operating Pressure: 1,200 psi (83 bar)

  • Maximum Feed Flow Rate: 8 gpm (1.8 m³/h)

  • Operating Temperature Range: 41–113°F (5–45°C)

  • Dimensions:

    • Length: 40 in (1016 mm)

    • Diameter: 4 in (102 mm)


Applications

  • Commercial desalination plants

  • Hotels, resorts & coastal facilities

  • Offshore water treatment units

  • Industrial seawater treatment systems

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Product Full Description

DOW Filmtec SW30-4040 RO Membrane – High-Performance Seawater Desalination

The DOW Filmtec SW30-4040 membrane is a premium reverse osmosis (RO) element engineered for seawater desalination. Renowned for its efficiency, reliability, and durability, this membrane is widely used in industrial, municipal, and commercial water treatment applications. With a daily production capacity of 1,200 gallons (4.5 m³/day) and a nominal salt rejection rate of 99.7%, it delivers exceptional water purity by effectively removing dissolved salts and contaminants.

The Filmtec SW30-4040 RO membrane is built to withstand demanding conditions, operating at pressures up to 1,200 psi (83 bar) and within a temperature range of 41–113°F (5–45°C). Its 85 square feet of active membrane area ensures optimal water output, making it a preferred choice for large-scale seawater treatment systems.


Key Features of SW30-4040 Membrane

  • High Capacity: Produces up to 1,200 gallons per day, ensuring a steady supply of purified water.
  • Superior Salt Rejection: Provides 99.7% nominal rejection, delivering excellent water quality.
  • Robust Pressure Tolerance: Operates reliably under 1,200 psi (83 bar), suitable for high-pressure seawater applications.
  • Durable Construction: Designed for long-term performance with resistance to fouling and scaling.
  • Temperature Range: Operates effectively between 41–113°F (5–45°C), adapting to varying environments.
  • Active Membrane Area: 85 sq. ft. surface area ensures efficient water production.

These features make the DuPont Filmtec SW30-4040 RO membrane a reliable and high-performance solution for demanding desalination projects.


Benefits of Using DOW Filmtec SW30-4040 RO Membrane

  1. Exceptional Water Quality – Achieves near-total salt removal, ensuring high-purity water for industrial, commercial, and municipal use.
  2. Energy-Efficient Design – Optimized to balance high output with low operational costs, saving energy and resources.
  3. Long Service Life – Built to resist fouling, scaling, and harsh seawater conditions, reducing maintenance needs.
  4. Operational Reliability – Consistently delivers results even in fluctuating feedwater conditions.
  5. Versatility – Suitable for a wide range of seawater desalination projects, from coastal municipal supply to industrial operations.

By choosing the Filmtec SW30-4040 seawater RO membrane, operators benefit from long-term durability and efficiency.


Applications of SW30-4040 RO Membrane

The DOW Filmtec SW30-4040 membrane is ideal for:

  • Municipal Desalination Plants – Providing safe, potable water for communities.
  • Industrial Processes – Supplying ultra-pure water for refineries, power plants, and chemical industries.
  • Commercial Use – Hotels, resorts, and coastal businesses requiring reliable water purification.
  • Agriculture – Supporting irrigation in water-scarce regions.
  • Mobile & Emergency Units – Ensuring rapid deployment in disaster relief or remote operations.

Its versatility and performance make it a top choice for seawater desalination.


Technical Specifications

  • Model: DOW Filmtec SW30-4040
  • Type: Seawater Reverse Osmosis Membrane
  • Capacity: 1,200 gallons/day (4.5 m³/day)
  • Salt Rejection: 99.7% nominal
  • Active Area: 85 sq. ft.
  • Maximum Operating Pressure: 1,200 psi (83 bar)
  • Operating Temperature Range: 41–113°F (5–45°C)
  • Design: Robust construction for long-term, high-pressure applications

These specifications confirm why the DuPont Filmtec SW30-4040 seawater RO element is trusted worldwide.


Why Choose DOW Filmtec SW30-4040 RO Membrane?

The SW30-4040 membrane combines advanced RO technology with DuPont’s proven reliability, making it a market leader in seawater desalination. Its balance of capacity, efficiency, and durability ensures consistent performance in even the toughest conditions.

Key reasons to choose include:

  • 99.7% salt rejection for superior water quality
  • Proven long-term performance in harsh seawater conditions
  • Designed for industrial and municipal desalination plants
  • Backed by DuPont’s global reputation in water treatment technology

Conclusion

For reliable, high-performance seawater desalination, the DOW Filmtec SW30-4040 reverse osmosis membrane is a top choice. With 1,200 GPD capacity, 99.7% salt rejection, and robust durability, it ensures consistent production of ultra-pure water in demanding environments.

Whether for municipal supply, industrial use, or commercial desalination, the Filmtec SW30-4040 RO membrane delivers efficiency, reliability, and long-lasting value.

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