KEY FEATURES
- Offers good salt-rejection with 30% lower pressures
- Delivers excellent silica, nitrate and ammonium rejection
- Provides the most effective cleaning performance, robustness and durability due to its widest cleaning pH range (1-13) and chemical tolerance and the support of DuPont technical representatives
SPECIFICATION
Product type
Spiral-wound element with polyamide thin-film composite membrane
Typical properties
- Nominal active surface – 37 m²
- Feed Spacer Thickness – 34-LPD mil
- Permeate flow rate – 43.5 m3/day
- Stabilized salt rejection – 99.3%
- Minimum salt rejection – 99.1%
1. Permeate flow and salt rejection based on the following standard conditions: 2,000 ppm NaCl, 150 psi (10.3 bar), 77°F (25°C), pH 8 and 15% recovery.
2. Flow rates for individual elements may vary but will be no more than ±15%.
3. Stabilized salt rejection is generally achieved within 24-48 hours of continuous use; depending upon feed water characteristics and operating conditions.
4. Sales specifications may vary as design revisions take place.
5. Active area guaranteed ± 3%. Active area as stated by DuPont Water Solutions is not comparable to nominal membrane area often stated by some manufacturers.
Operating and Cleaning Limits
- Maximum Operating Temperature – 45°C
- Maximum Operating Pressure – 41 bar
- Maximum Pressure Drop – 1.0 bar
- pH Range (continous operation) – 2-11
- Maximum Feed Silt Density Index – SDI 5
- Free Chlorine Tolerance <0.1 ppm