Description
Dow® Filmtec™ BW30-2540 brackish water reverse osmosis membranes provide consistent, outstanding system performance in light industrial applications. Filmtec 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.
Specifications for BW30-2540
| FilmTec Product: | BW30-2540 |
| FilmTec Part Number: | 80766 |
| Size (Approximate): | 2.5″ Dia. x 40″L |
| Flow Rate: | 1,000 gpd (3.8 m³/d) |
| Applied Pressure: | 225 psig (15.5 bar) |
| Stabilized Salt Rejection: | 99.5% |
| Single Element Recovery: | 15% |
| Exterior: | Hard Shell Fiberglass |
| Feed Spacer: | 28 mil |
| Membrane Type: | Polyamide Thin-Film Composite |
Permeate flow and salt rejection based: 2,000 ppm NaCl feed stream, 77°F, 15% recovery, 225 psig.
Operating Limits for BW30-2540
| Maximum Operating Temperature: | 113°F (45°C) |
| Maximum Operating Pressure: | 600 psig (41 bar) |
| Maximum Pressure Drop: | 15 psig (1 bar) |
| Maximum Feed Flow Rate: | 6 gpm (1.4m³/h) |
| pH Range, Continuous Operation*: | 2-11 |
| pH Range, Short-Term Cleaning**: | 1-13 |
| Maximum Feed Silt Density Index: | SDI 5 |
| Fere Clorine Tolerance***: | <0.1ppm |
*Maximum temperature for continuous operation above pH 10 is 95°F
**Refer to cleaning guidelines.
***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.
Physical Dimensions of DOW FilmTec BW30-2540
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BW30-2540 Fits nominal 25×40 size pressure vessels.
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