Sea Recovery Ultra Whisper Compact 400, Owner'S Manual, Page: 15 / 120

13
Chapter
3
System Specifications
Feed Water and Recovery
Important: If any of the following components are mismatched, the System will not function properly. The
operating pressure and/or amperage draw will be higher than specified, causing damage to one or more
components. The operating pressure can also be lower than required, resulting in low product water production
and poor product water quality.
Table 1: 12 VDC, 24 VDC and Alternating Current 60 Hz powered Systems
Ultra Whisper
Model
Product Water
Production (GPD /
LPD)
Pump Elect.
Motor Feed Pump Flow
(GPH/LPH) R.O. BOOST
Recovery
(Percentage) RO Membrane
Element Size Code Pressure Vessel
Size Code
UW 400 400/1514 1/3 H.P. 140/530 13% C C
UW 600 600/2271 1/2 H.P. 215/814 13% C C
Table 2: Alternating Current 50 Hz powered Systems
Ultra Whisper
Model
Product Water
Production (GPD /
LPD)
Pump Elect.
Motor Feed Pump Flow (GPH
/LPH) R.O. BOOST
Recovery
(Percentage) RO Membrane
Element Size Code Pressure Vessel
Size Code
UW 400 396/1499 1/3 H.P. 190/720 13% C C
UW 600 600/2271 1/2 H.P. 215/814 13% C C
System Pressure
Table 3: Seawater @ 35,000 PPM and 77 F / 25º C.
Feed Pump Nominal Discharge Pressure into R.O. BOOST
Nominal Operating Pressure Developed by R.O. BOOST at RO
Membrane Element
Model PSI BAR Kg/cm2 kPa PSI BAR Kg/cm2 kPa
UW 400 160 11 11.2 1103 650 45 45.6 4482
UW 600 175 12 12.3 1206 690 47 48.5 4757