Description
Dow® Filmtec™ TW30-2026 Tap Water 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. 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 TW30-2026
| FilmTec Product: | TW30-2026 |
| FilmTec Part Number: | 80635 |
| Size (Approximate): | 2″ Dia. x 26″L |
| Flow Rate: | 220 gpd (0.83 m³/d) |
| Applied Pressure: | 225 psig (15.5 bar) |
| Stabilized Salt Rejection: | 99.5% |
| Active Surface Area: | 7 Sq. Ft. |
| Single Element Recovery: | 10% |
| Exterior: | Tape-Wrapped |
| Membrane Type: | Polyamide Thin-Film Composite |
Permeate flow and salt rejection based: 2,000 ppm NaCl feed stream, 77°F, 10% recovery, 225 psig.
Operating Limits for TW30-2026
| 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: | 5 gpm (1.1m³/h) |
| pH Range, Continuous Operation*: | 2-11 |
| pH Range, Short-Term Cleaning**: | 1-13 |
| Maximum Feed Silt Density Index: | 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.
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