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Home > Water Filter Brands > Filmtec Reverse Osmosis Membranes > FILMTEC-TW30-2521


Dow Filmtec TW30-2521 Commercial Reverse Osmosis Membrane

325 Gallons Per Day; 2.5" W X 21" L; Part # 80641

Dow Filmtec TW30-2521 Commercial Reverse Osmosis Membrane
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Product Code: FILMTEC-TW30-2521
  • Dow Filmtec TW30-2521 Commercial Reverse Osmosis Membrane:
  • Dow Filmtec TW30-2521 commercial reverse osmosis (RO) elements offer the highest quality water for small commercial systems purifying less than one gallon per minute (0.2 m3/d) of RO water.
  • Dow Filmtec membranes also deliver savings by providing the industry’s longest lasting and most reliable performance.
  • Dow Filmtec Part # 80641
  • Dow Filmtec TW30-2521 Commcerial Reverse Osmosis Membrane Specs:
  • Dimensions: 2.5" W X 21" L
  • Maximum Operating Temperature: 113°F (45°C)
  • TW30-2521 Permeate Flow Rate gpd (m3/d): 325 gpd (1.23 m3/d)
    (Permeate flow rates for individual elements may vary +/-20%.)
  • Max Feed Flow Rate: 6 gpm
  • Maximum Operating Pressure: 600 psig (41 bar)
  • Maximum Stabilized 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 TW30-2521 Reverse Osmosis Membrane Materials of Construction:
  • Membrane Type: Polyamide Thin-Film Composite
  • Manufacturer: Filmtec TW30-2521
  • Dow Filmtec Commercial TW30-2521 Reverse Osmosis Systems:
  • The Dow Filmtec TW30-2521 Reverse Osmosis Membrane can be used in many brands of Commercial Reverse Osmosis Water Filtration Systems.
  • Dow Filmtec TW30-2521 Reverse Osmosis System Accessories:
  • Use a TDS Meter to monitor the Total Dissolved Solids before and after the Filmtec Commercial TW30-2521 Reverse Osmosis Membrane.
  • Use a Digital RO Tank Pressure Gauge to monitor the Reverse Osmosis Tank Pressure.
  • Dow Filmtec TW30-2521 Reverse Osmosis Membrane Instructions:
  • After installation of the Filmtec TW30-2521, the first full tank of permeate should be discarded. Do not use this initial permeate.
  • Proper start-up of reverse osmosis water treatment system is essential to prepare the TW30-2521 industrial membrane elements for operating service and to prevent membrane damage due to overfeeding or hydraulic shock.
  • Keep the TW30-2521 RO element moist at all times after initial wetting.
  • During prolonged system shutdowns, it is recommended that the Filmtec Dow TW30-2521 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 TW30-2521 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 30 psi (2.1 bar).

Quantity Unit Price
1 - 2 $218.99
3 - 5 $212.39
6+ $205.89
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