Reverse Osmosis — Anti-Fouling
SP-R50 Specialty Membranes
Anti-fouling brackish RO for high-COD polluted feedwater
Product description
SP-R50 builds on SV-NanoMetrix's field-proven fouling-resistant (FR) membrane technology, with targeted enhancements for highly polluted water sources with elevated COD levels. As an anti-fouling brackish water RO membrane element, it offers improved sheet durability while integrating proprietary anti-fouling innovations and robust membrane chemistry.
Specifications
| Membrane Model | Effective Area ft² (m²) | Feed Channel | Stabilized Rejection (%) | Min. Rejection (%) | Flux gpd (m³/d) |
|---|---|---|---|---|---|
| SP-R50-400 | 400 (37) | Standard | 99.6 | 99.4 | 11000 (42) |
| SP-R50-350 | 350 (33) | HDG | 99.6 | 99.4 | 9625 (36.4) |
Flux and rejection based on 1.55 MPa (225 psi), 77°F (25°C), 2,000 ppm NaCl, pH 8 feedwater and 15% recovery.

Performance figures are nominal values obtained under the standard test conditions stated with each table. Actual performance varies with feedwater chemistry, pretreatment, flux, recovery, temperature, pressure and operating practice. Individual element flow may vary from the nominal value. Specifications are subject to change without notice — request the current datasheet before specifying.
Operating & cleaning limits
- Maximum Operating Pressure 41 bar (600 psi)
- Maximum Operating Temperature 45°C (113°F)
- Maximum Element Pressure Drop 1.0 bar (15 psi)
- pH Range Continuous Operation 2–11
- pH Range Short-Term Cleaning 1–13
- Maximum Feed SDI (SDI₁₅) 5.0
- Free Chlorine Tolerance < 0.1 ppm
Notes
- Permeate flow for individual elements may vary ±15% from the value specified.
- Active membrane area guaranteed ±4%.
- Stabilized salt rejection is generally achieved within 24–48 hours of continuous use, depending upon feedwater characteristics and operating conditions.
Related series
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