FILMTEC™ BW-2540 elements are available to meet a wide variety of customer needs for commercial applications, from the highest purity water to the lowest total system costs.

Features:

• Dow Filmtec BW30-2540 Brackish Water Industrial Reverse Osmosis Membrane:
• The Dow Filmtec BW30-2540 brackish water reverse osmosis membrane elements provide consistent and outstanding system performance in light industrial applications.
• The Filmtec Dow BW30-2540 elements are designed for systems smaller than 1 gpm (0.2 m3/h) offering a hard shell exterior for extra strength.
• Elements with a hard shell exterior are recommended for systems with multiple-element housings containing three or more membranes, as they are designed to withstand higher pressure drops.
• The Dow Filmtec BW30-2540 industrial RO membrane may be cleaned over the widest pH range (pH 1-13) for the most effective cleaning.
• Dow Filmtec Part # 80766

Specifications:

• Dow Filmtec BW30-2540 Industrial Reverse Osmosis Membrane Specs:
• Dimensions: 2.5" W X 40" L
• Maximum Operating Temperature: 113°F (45°C)
  (Maximum temperature for continuous operation above pH 10 is 95°F (35°C).)
• BW30-2540 Permeate Flow Rate gpd (m3/d): 850 (3.2)
  (Permeate flow rates for individual elements may vary +/-20%.)
• Maximum Operating Pressure: 600 psi (41 bar)
• Maximum Feed Flow Rate: 6 gpm (1.4 m3/h)
• Stabalized Salt Rejection: 99.5%
• Maximum Feed Silt Density Index (SDI): 5
• Free Chlorine Tolerance: <0.1 ppm
• pH Range, Continuous Operation: 2-11
  (Maximum temperature for continuous operation above pH 10 is 95°F (35°C))
• pH Range, Short Term Cleaning: 1-13
• Dow Filmtec BW30-2540 Industrial Reverse Osmosis Membrane Materials of Construction:
• Membrane Type: Polyamide Thin-Film Composite

Instructions:

• Filmtec Dow BW30-2540 Reverse Osmosis Membrane Instructions:
• Proper start-up of reverse osmosis water treatment system is essential to prepare the BW30-2540 industrial membrane elements for operating service and to prevent membrane damage due to overfeeding or hydraulic shock.
• Keep the BW30-2540 RO element moist at all times after initial wetting.
• During prolonged system shutdowns, it is recommended that the Filmtec BW30-2540 membrane elements be immersed in a preservative solution. This is to prevent biological growth.
• Avoid any abrupt pressure or cross-flow variations on the spiral elements during shutdown, cleaning or other sequences to prevent possible BW30-2540 Reverse Osmosis Membrane damage.
• During start-up, a gradual change from a standstill to operating state is recommended:
  - Feed pressure should be increased gradually over a 30-60 second time frame
  - Cross-flow velocity at set operating point should be achieved gradually over 15-20 seconds
  - Permeate obtained from first hour of operation should be discarded.
• Maximum pressure drop across an entire pressure vessel (housing) is 50 psi (3.4 bar).