TW30-4040 FilmTec DOW / DuPont 225 PSI 2,400 GPD 4 inch x 40 inch Membranes
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🏢 FilmTec TW30-4040 Tap Water RO Membrane
The FilmTec TW30-4040 is a highly reliable 4-inch reverse osmosis element specifically optimized for treating tap water in commercial and light industrial systems. It is the industry standard for applications that require a balance between high permeate quality and robust operational life. Primarily used for drinking water systems, medical labs, and small-scale food production, this membrane is designed to handle the variable water chemistry often found in municipal tap water supplies while maintaining consistent output.
Built with a polyamide thin-film composite membrane and a durable fiberglass hard-shell exterior, the TW30-4040 is engineered to provide stable performance over long-term use. Its spiral-wound design ensures efficient water flow and salt rejection, making it a dependable choice for system designers. With a nominal salt rejection of 99.5% and a permeate flow rate of 2,400 gallons per day, this element delivers high-purity water at standard tap water pressures, ensuring a cost-effective solution for diverse water purification needs.
| SPECIFICATION |
DETAILS |
| Model Number |
TW30-4040 |
| Manufacturer |
FilmTec (DuPont) |
| Membrane Type |
Polyamide Thin-Film Composite |
| Element Dimensions |
4.0" Diameter x 40" Length |
| Permeate Flow Rate |
2,400 GPD (9.1 m³/d) |
| Stabilized Salt Rejection |
99.5% |
| Minimum Salt Rejection |
99.0% |
| Active Surface Area |
78 ft² (7.2 m²) |
| Test Pressure |
225 psi (15.5 bar) |
| Max Operating Pressure |
600 psig (41 bar) |
| Max Operating Temp |
113°F (45°C) |
| pH Range (Continuous) |
2 – 11 |
| pH Range (Cleaning) |
1 – 13 |
