The Polisher RO family of proprietary thin film reverse osmosis membrane elements is characterized by high flux and excellent sodium chloride rejection. The membrane has an average rejection of 99.5% on 2,000 ppm NaCl at 25°C (77°F) and 225 psi operating pressure.
The Polisher RO elements provide high rejection of dissolved solids and low molecular weight organic
constituents at operating pressures up to 600 psi.
Typically used in food-related processing that requires stringent sanitary procedures, the RO Polisher is used to treat evaporator condensate (cow water), and RO/NF permeate in order to recover process water for the plant.
The Polisher RO element features a Durasan* Cage patented outer wrap, standard feed spacer, and
The Polisher RO elements comply with:
• FDA Regulations relevant sections of 21 CFR
• EU Framework 1935/2004/EC
• Halal & Kosher certification
Typical Operating Pressure: 200-500 psi (1,379-3,447 kPa)
Typical Operating Flux 15-20 GFD (25-34 LMH)
Maximum Operating Pressure: 600 psi (4,137 kPa)
Maximum Permeate Pressure: 60 psi (413 kPa)
Maximum Temperature 122°F (50°C)
pH Range 2.0-11.0
Recommended Pressure Drop: Over an element: 12 psi (83 kPa)
Maximum Pressure Drop Over an element: 15 psi (103 kPa)
Per housing: 60 psi (414 kPa)
Chlorine Tolerance 1000 ppm-hours dechlorination recommended