• Model: NWS4-150 Energy Recovery
• Nominal Capacity: 150 m3/day
• Feed Water Flow: Minimum 14 m3/h
• Feed Water Pressure: 2.5 to 5.0 bar
• System Pressure: Nominal 65 bar, Maximum 75 bar
• Permeate Back-Pressure: Maximum 2.5 bar
• Concentrate Back-Pressure: Maximum 1.0 bar
• Pilot Air Pressure: 6 bar
• Power Consumption: Calculated max. 18 kW
• Motor Rating: S1 duty 21.5 + 6.4 kW
• System Voltage: 440V / 60Hz (alternative available)
• Product Conductivity: Nominal ≤ 75 mS/m, Maximum ≤ 100 mS/m
• Flush Water Prefiltration: 5µ (carbon)
• Temperature Range: 5-40°C (alternative available)
• Connections: Product Water DN40/ANSI 150#, Concentrate DN50/ANSI 150#, Feed Water DN50/ANSI 150#, Flush Water DN25/ANSI 150#, Pilot Air 6mm / 1/8” Push-in
• Dimensions: 2.7 x 1.4 x 2.0 m
• Operational Weight: +/- 1,200 kg

The NWS4-150 Fresh Water Maker is a reverse osmosis system designed for a nominal capacity of 150 m3/day at seawater temperature of 25°C and salinity of 35,000 ppm. It is mounted on a steel skid with integrated PLC control and starting cabinet. The system includes an automatic freshwater flushing system for membrane protection and an automatic 'water drop' system with an alarm for high salinity. It features a digital flow-meter for accurate production readings and comes complete with a raw water filter and carbon flush water filter.

1. Seawater feed or booster pump
2. Pre-Filtration arrangement
3. High-Pressure seawater pump
4. Pressure vessel with membranes
5. Pressure regulating valve
6. Conductivity sensor
7. Production diverter valve
8. Post-treatment pH-Regulating arrangement

Minimum maintenance space required is 1000 mm and 600 mm.

Hillestad, N-5457 Hoylandsbygd, Norway
Phone: +47 53 48 35 50
Fax: +47 53 48 35 51
Email: [email protected]
Website: www.norwater.no