SW30-4040 Dow Filmtec Reverse Osmosis Membrane Sea Water Membrane Element

Offering a Dow Filmtec reverse osmosis membrane. According to the Dow website:

FILMTEC Seawater RO Elements for Marine Systems

Improved FILMTEC seawater reverse osmosis elements offer the highest productivity while maintaining excellent salt rejection.

- FILMTEC SW30 membrane elements have the highest flow rates available to meet the water demands of both sea-based and land-based desalinators.

- FILMTEC SW30 elements may also be operated at lower pressure to reduce pump size, cost and operating expenses.

- Improved FILMTEC seawater membrane combined with automated, precision element fabrication result in the most consistent product performance available.

PRODUCT SPECIFICATIONS:

Product - SW30-4040

Part number - 80741

Active Area ft  (m) - 80 (7.4)

Applied Pressure psig (bar) - 800 (55)

Permeate Flow Rate gpd (m /d) - 1,950 (7.4)

Stabilized Salt Rejection % - 99.4

Maximum Feed Flow Rate gpm (m /h) - 16 (3.6)

Size  - 4.0" x 40"

OPERATING LIMITS

Membrane Type - polyamide thin-film composite

Maximum Operating Temperature - 113°F (45°C)

Maximum Operating Pressure - 1,000 psi (69 bar)

Maximum Pressure Drop - 15 psig (1.0 bar)

pH Range, Continuous Operations - 2 - 11

pH Range, Short-Term Cleaning  - 1 - 13

Maximum Feed Silt Density Index - SDI 5

Free Chlorine Tolerance - <0.1 ppm

 - Maximum temperature for continuous operation above pH10 is 95°F (35°C)

 - Refer to Cleaning Guidelines in specification sheet 609-23010

 - 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, FilmTec recommends removing residual free chlorine by pretreatment prior to membrane exposure. Please refer to technical bulletin 609-22010 for more information.

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Inv #SW30-4040/64/BP10B4266A6/305/H++++@@@@@B2/Calculated/OK