Description
Dow® Filmtec™ XLE-2521 extra low energy elements operate at the lowest pressure in the industry, resulting in lower energy costs and enabling system builders to use lower cost components. In addition to the highest quality water and the lowest energy costs, Filmtec membranes deliver savings by providing the industry’s longest lasting and most reliable performance.
Specifications for XLE-2521
| FilmTec Product: | XLE-2521 |
| FilmTec Part Number: | 154530 |
| Size (Approximate): | 2.5″ Dia. x 21″L |
| Flow Rate: | 365 gpd (1.38 m³/d) |
| Applied Pressure: | 100 psig (6.9 bar) |
| Stabilized Salt Rejection: | 99.0% |
| Active Surface Area: | 13 Sq. Ft. |
| Single Element Recovery: | 10% |
| Exterior: | Tape-Wrapped |
| Membrane Type: | Polyamide Thin-Film Composite |
Permeate flow and salt rejection based: 500 ppm NaCl feed stream, 77°F, 8% recovery, 100 psig.
Operating Limits for XLE-2521
| Maximum Operating Temperature: | 113°F (45°C) |
| Maximum Operating Pressure: | 600 psig (41 bar) |
| Maximum Pressure Drop: | 13 psig (0.9 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 XLE-2521
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XLE-2521 Fits nominal 25×21 size pressure vessels.
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