Description
Dow® Filmtec™ TW30-4040 is the industry standard for reliable operation and production of the highest quality water. Tape-wrapped elements are built with the same high quality membranes and materials as industrial elements, without the hard outer shell, making them more economical for commercial systems with one or two elements per housing.
Specifications for TW30-4040
| FilmTec Product: | TW30-4040 |
| FilmTec Part Number: | 80610 |
| Size (Approximate): | 4″ Dia. x 40″L |
| Flow Rate: | 2,400 gpd (9.1 m³/d) |
| Applied Pressure: | 225 psig (15.5 bar) |
| Stabilized Salt Rejection: | 99.5% |
| Active Surface Area: | 78 Sq. Ft. |
| Single Element Recovery: | 15% |
| Exterior: | Tape-Wrapped |
| Feed Spacer: | 34 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 TW30-4040
| 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: | 14 gpm (3.2m³/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.
Physical Dimensions of DOW FilmTec TW30-4040
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TW30-4040 fits nominal 4×40 size pressure vessels.
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