Sea Recovery’s Ultra Whisper™ Desalinator—with its unique EfficientSea™ Energy Transfer technology—brings efficient, compact, and extraordinarily quiet watermaking to small and mid-size power or sail boats that either have only DC power available or small AC generators less than 4 Kw in size.

The unit’s Energy Transfer Device eliminates the need for a high-pressure pump, reducing the electricity consumption of the watermaker by as much as 75%. The reverse osmosis (RO) process is achieved by recovering energy from the pressurized brine discharge and transferring that energy to relatively low-pressurized feed water. An ingeniously designed manifold and a two-valve flow control system deliver smooth, constant, and fault-free one-touch automated operation with no valves to adjust; it self adjusts to any feed water condition. The patented energy recovery device pump is manufactured with Nitronic 50 material providing corrosion and erosion resistance.

This energy recover watermaker produces from 200 to 600 U.S. gallons per day (757 to 2,271 liters per day) or 8 to 25 U.S. gallons per hour (32 to 95 liters per hour).

ULTRA WHISPER SPECIFICATIONS

Performance: Rated Performance / Product Water Produced: +-15% at 850 PSI / 56 BAR, 77oF / 25oC & 35,000 PPM TDS typical sea water Model # Per Hour Per Day UW 200 UW 300 UW 400 UW 500 UW 600 8.3 gal/31.5 lit 12.5 gal/47.3 lit 16.7 gal/63.1 lit 20.8 gal/78.9 lit 25 gal/94.6 lit 200 gal /757 lit 300 gal/1,136 lit 400 gal/1,514 lit 500 gal/1,893 lit 600 gal/2,271 lit Salt Rejection (Chloride Ion): Minimum 99.2%, Average 99.4% Product Water Temperature: Ambient to feed water temperature Salinity Monitoring: Automatic computer controlled electronic monitoring. Temperature compensated with the Water Quality Indicator. The salinity monitoring components of the system give a continuous readout in micromhos per cubic centimeter, are temperature compensated, and of a fail-safe design. Salinity Range: Designed for Seawater use up to 50,000 PPM TDS (NaCl) (typical seawater salinity is 35,000 ppm) Temperature Range: Max. 122oF / 50oC, Min. 33oF / .5oC Reverse Osmosis Membrane: Selected High Rejection/High Yield aromatic tri-polyamid, thin film composite, spiral wound, single pass, high rejection reverse osmosis membrane element. Chlorine Tolerance: 0.1 PPM pH Range: 3-11 (typical seawater pH is 8) System Pressure: Feed Water From The Feed Water Pump Inlet to the Energy Transfer Device: Nominal at 35,000 ppm TDS feed water salinity and 77oF / 25oC UW 200 UW 300 UW 400 UW 500 UW 600 100 psi / 6.90 bar / 7.03 Kg/cm2 / 689.5 kPa 110 psi / 7.58 bar / 7.73 Kg/cm2 / 758.5 kPa 110 psi / 7.58 bar / 7.73 Kg/cm2 / 758.5 kPa 150 psi / 10.34 bar / 10.55 Kg/cm2 / 1,034.3 kPa 160 psi / 11.03 bar / 11.25 Kg/cm2 / 1,103.2 kPa Operation Pressure at the R.O. Membrane Element: Nominal at 35,000 ppm TDS feed water salinity and 77oF / 25oC UW 200 UW 300 UW 400 UW 500 UW 600 600 psi / 41.37 bar / 42.18 Kg/cm2 / 4,137 kPa 625 psi / 43.09 bar / 43.94 Kg/cm2 / 4,309 kPa 625 psi / 43.09 bar / 43.94 Kg/cm2 / 4,309 kPa 765 psi / 52.75 bar / 53.78 Kg/cm2 / 5,275 kPa 825 psi / 56.88 bar / 58.00 Kg/cm2 / 5,688 kPa Weight: Model Number Modular Compact UW 200 UW 300 UW 400 UW 500 UW 600 130 lbs / 59 Kg 138 lbs / 63 Kg 145 lbs / 66 Kg 153 lbs / 69 Kg 155 lbs / 70 Kg 135 lbs / 61 Kg 143 lbs / 65 Kg 150 lbs / 68 Kg 158 lbs / 72 Kg 160 lbs / 73 Kg External Installation Water Connections: Pipe sizes to be supplied by the installer for connection of the Sea Recovery supplied components. The below pipe threads are all American Standard. Feed Inlet: 1/2" MNPT Male National Pipe Thread Brine Discharge: 1/2" MNPT Male National Pipe Thread Product: 1/4" FNPT Female National Pipe Thread Electrical Power Specifications: Nominal Operating Power Consumption in Amperes: Amperes listed are nominal operating amperes when the feed water conditions are 35,000 PPM TDS Salinity and 77oF / 25oC. Power consumption will vary depending upon individual R.O. Membrane Element, the condition of the R.O. Membrane Element, Feed Water Temperature, and Feed Water Salinity. Model 12 VDC 24 VDC 100-115 VAC 220-230 VAC UW 200 13 amps 6.5 amps 4.5 amps 2.25 amps UW 300 20 amps 10 amps 5 amps 2.5 amps UW 400 22 amps 11 amps 6.3 amps 3.3 amps UW 500 n/a 18 amps 8 amps 4 amps UW 600 n/a 20 amps 8.3 amps 4.2 amps