• Model: SW30-8040
• Active Area: 300 (28) ft2 (m2)
• Permeate Flow Rate: 6,000 (23) gpd (m3/d)
• Minimum Salt Rejection: 98.6 %
• Stabilized Salt Rejection: 99.1 %
• Membrane Type: Thin-Film Composite
• Maximum Operating Pressure: 1,015 psi (7.0 MPa)
• Maximum Operating Temperature: 113°F (45°C)
• Maximum Feed Turbidity: 1 NTU
• Free Chlorine Tolerance: <0.1 ppm
• pH Range, Continuous Operation: 2 – 11
• pH Range, Short-Term Cleaning (30 min.): 1 – 13
• Maximum Feed Flow: 60 gpm (14 m3/h)
• Maximum Feed Silt Density Index (SDI): SDI 5

FILMTEC seawater membrane delivers high boron rejection to help customers meet World Health Organization (WHO) and other drinking water standards. DOW FILMTEC seawater reverse osmosis membrane elements deliver high performance over their operating lifetime without the use of oxidative post-treatments like many competitive products. This is one reason why FILMTEC seawater membrane are more durable and may be cleaned more effectively over a wider pH range (1-13) than other RO elements. The FILMTEC seawater membrane is a premium grade seawater reverse osmosis element featuring both high active area and high salt rejection to offer the best long-term economics for seawater desalination systems.

FILMTEC seawater membrane are high quality reverse osmosis elements that provide high salt rejection and surface area to bring long-lasting cost-efficiency for marine desalination systems. These membranes offer high boron rejection to satisfy the world’s freshwater standard and provide high performance for the life-span of the operation without the use of post treatments. For this reason, Filmtec membranes are considered the most durable of its kind in the available market and are capable of being cleaned more easily than other reverse osmosis membranes.

Filmtec elements are manufactured to boost the productivity of systems at low pressures, and low to high cleaning energy. The enhanced membrane make-up diminishes the energy and pressure usage beneath any other existing seawater reverse osmosis membrane. Due to this benefit, operational costs and the risk of o-ring leakages which cause bad water quality are substantially reduced. Filmtec seawater membranes are highly productive elements that provide incredible durability and high-rejection to work properly in high fouling or contaminated feedwater. This will maintain an effective and smooth operation with low cost of water.

General Information

• Keep elements moist at all times after initial wetting.
• To prevent biological growth during prolonged system shutdowns, it is recommended that membrane elements be immersed in a preservative solution.
  The customer is fully responsible for the effects of incompatible chemicals and lubricants on elements.
• Maximum pressure drop across an entire pressure vessel (housing) is 50 psi (3.4 bar).
• Avoid static permeate-side backpressure at all times.