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Product Details

800 GPD Dow Filmtec RO Membrane

FILMTEC Corporation is the leading manufacturer of reverse osmosis and nanofiltration membrane elements for industrial, municipal, commercial, and home drinking water treatment and purification, as well as for other specialty applications.

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FILMTEC™ seawater reverse osmosis membrane elements offer the industry’s most reliable seawater desalination production. Advanced membrane technology and automated fabrication allow these elements to deliver consistent high flow rates to meet the water demands of both sea and land-based desalinators. These high-productivity membranes work well at lower pressures to reduce pump size, costs, and operating expenses and can withstand up to 1,000 psi operation without degradation in flow, salt rejection, and physical appearance. These membranes deliver excellent performance in terms of flux, salt and organics rejection, and microbiological resistance. They can operate over a pH range of 2 to 11, are resistant to compaction, and are suitable for temperatures up to 45°C. Their performance remains stable over many years, even under harsh operating conditions.

Operating Limits

Membrane Type

Thin-Film Composite

Maximum Operating Temperature

113°F (45°C)

Maximum Operating Pressure

1,000 psi (69 bar)

pH Range, Short-Term Cleaning(30 min.)


Maximum Feed Silt Density Index


Free Chlorine Tolerance

<0.1 ppm

pH Range, Continuous Operation


Maximum Pressure Drop

15 psig (1.0 bar).
For MEM-SW-150, MEM-SW-300, MEM-SW-700, MEM-SW-800, and MEM-SW-1950.

Maximum Feed Turbidity

For MEM-SW-2100 and MEM-SW-6000.

Maximum Feed Flow

28 GPM (106 lpm) For MEM-SW-2100;
60 gpm (14 m3/h) For MEM-SW-6000



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