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DOW Filmtec BW30-365 RO Membrane 9500 GPD

DOW Filmtec BW30-365 RO Membrane 9500 GPD, DWC63
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Brand: DOW Filmtec
Price: $744.00
List Price: $744.00
On Sale For: $690.00
As Low As $21 Per Month details

Dimensions: 8" x 40"
Weight: 26 lb

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Made in USA

DOW Filmtec BW30-365 RO Membrane 9500 GPD, a 8" x 40" brackish water Reverse Osmosis Membrane that can provide RO quality water up to 9,500 gallons per day at a 15% recovery rate. It can operate at feed pressures ranging from 225 psi to 600 psi with 99.5% salt rejection. This element offers the highest quality water for large-scale industrial and municipal water treatment systems purifying greater than approximately 10 gpm (2300 L/h) of RO water and is the industry standard for reliable operation and production of the highest quality water in commercial applications. The element features the thickest feed spacer (34 mil) available in the industry today to lessen the impact of fouling as well as a fiberglass shell. These elements are ideal for reverse osmosis plant managers and operators dealing with challenging water and seeking consistent, high performance and long element life.

The BW30-365 can separate salts from water and are produced with an automated fabrication process for precision, consistency, and reliability offering high rejection of dissolved solids and organics and operate very efficiently at lower pressures. This minimizes equipment CAPEX in designs with savings in elements and pumping while delivering the most effective cleaning performance, robustness and durability due to its widest cleaning pH range (1-13) tolerance. This element is primarily used in industrial water de-mineralization and production of municipal drinking water. For years, the DOW FILMTEC BW30-365 has been the element of choice for system designers, OEMs and system operators requiring consistently high performance and maximum element life when treating difficult feed waters.


Key Features and Benefits:

DOW Filmtec genuine membranes
  • 9,500 Gallons per day.
  • 34 mil feed spacer.
  • 600 psi maximum operating pressure.
  • Removes chemical contaminants.
  • Delivers high quality permeate water while minimizing unit cost.
  • High flux results in high yields.
  • Low energy costs with high rejection providing good water quality.
  • Hard shell exterior for extra strength.
  • Durable with Good Cleanability for Long Element Life.
  • DOW FilmTec high quality, long lasting and reliable performance.


Manufacturer ID(Part#):BW30-365 (Part #80773 )
Dimensions(Diameter x Length):8" x 40" (actual 7.9 x 40)
Stabilized Salt Rejection:99.5%
Permeate Flow Rate(Gallons per Day, gpd):9,500 Gal/Day *
Maximum Feed Flow Rate(Gallons per Minute, gpm):85 gpm (19.3 m3/hr)
Applied Pressure(psi):225 psi (15.5 bar)
Maximum Operating Pressure(psi):600 psi (41 bar)
Maximum Pressure Drop(psi):15 psi (1.0 bar)
Maximum Operating Temperature(°F):113°F (45°C)
pH Range, Continuous Operation:2 - 11 **
pH Range, Short-Term Cleaning:1 - 13
Maximum Feed Silt Density Index(SDI):SDI 5
Free Chlorine Tolerance(ppm):< 0.1 ppm ***
Membrane Style:Drop-in Element
Membrane Material:Spiral-wound with Polyamide Thin-Film Composite
Active Area:365 sq. ft. ****
Outer Wrap:Hard fiberglass outer shell
Housing/Pressure Vessel Size(inch):8 inch
* Permeate flow rate and salt rejection based on the following test conditions: 2,000 ppm NaCl, 225 psi (8.6 bar), 77°F(25°C), pH 8, 15% recovery. Permeate flow rates for individual elements may vary +/-15%.
**Maximum temperature for continuous operation above pH 10 is 95°F (35°C).
*** Under certain conditions, the presence of free chlorine and other oxidizing agents will cause premature membrane failure. Since oxidation damage is not covered under warranty, Dow recommends removing residual free chlorine by pretreatment prior to membrane exposure. Most RO systems have carbon pre-filters for this purpose
**** Active area guaranteed ±3%. Active area as stated by Dow Water & Process Solutions is not comparable to nominal
membrane area often stated by some manufacturers..

- Stabilized salt rejection is generally achieved within 24-48 hours of continuous use; depending upon feedwater characteristics and operating conditions.
- Proper start-up of reverse osmosis water treatment system is essential to prepare the industrial membrane elements for operating service and to prevent membrane damage due to overfeeding or hydraulic shock.
- Before initiating system start-up procedures, membrane pretreatment, loading of the membrane elements, instrument calibration and other system checks should be completed.
- During prolonged system shutdowns, it is recommended that the Dow Filmtec membrane elements be immersed in a preservative solution. This is to prevent biological growth.
(To ensure proper product startup and usage, please review Operation Guidelines and General Information section from the Product Data Sheet.)

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