Aqua-Base ESW 902 - A - THE WATERMAKER; 2 - CHARACTERISTICS

U:\Affaires\Aqua-Base\ESW\09- Manuels Utilisateur\DOC UTILISATEUR ESW FRUKES 2023-06-Y3.doc VERSION 2023-06-Y3 FR/UK/ES Page 18/52
A – THE WATERMAKER
1 – PRESENTATION
The Watermaker is entirely hydraulic. Its only source of energy is the low-pressure water-flow provided by the booster pump. The hydraulic
amplifier system automatically regulates the osmotic pressure as well as the flow of water pumped through the osmotic membrane.
The AQUA-BASE ESW desalination unit is composed of:
- A sea strainer
- A low pressure pump driven by an electric motor 12 or 24VCC
- A 5µ filter (with cartridge)
- A hydraulic amplifier to increase the pressure of seawater up to 20 / 65 bar (depending on the version) to allow
production of fresh water through the membrane
- A reverse osmosis membrane inside the high-pressure vessel
- A set of valves for operating and servicing the unit
- A main switch and all controls necessary to the operation of unit
- A salinometer and a valve which automatically manages the produced water flow according to its quality
- A LP (Low-Pressure) and HP (High-Pressure) pressure gauge
- A LP (Low-Pressure) vaccum switch
- A fitting Kit for R/O unit installation
- The hull fitting and hull valve are not included in the supplies
- A semi automatic rinsing system (Extra)
- A remote control (Extra)
- An electric box Dual voltage (Extra).
 See dimensions drawing in appendix
2 – CHARACTERISTICS
TYPE ESW 301 ESW 601 ESW 901 ESW 302 ESW 602 ESW 902
Dry mass
Kg
41
49
63
41
49
63
Pipes
Feeding
Reject
Production
Vaccum switch
A1  A6
B1 / B2
B3 / B4
F
C1
mm
mm
mm
mm
mm
20 X 27 (Embedded steel spirale reinforcement 2bar max)
19 X 27 (flexible 20 bar max)
19 X 27 (flexible 20 bar max)
8 x 14 (20 bar max).
4 x 6 red (719080
-
R)
Voltage
VDC
1
2
24
LP Pressure
bar
4 to 10
HP
Pressure
(1)
bar
2
0 to 65 (depends version
and s
ea water s
alinity
)
Elec. Cons
um
pt
ion
A
12 25 34 6 12.5 17
Std. Capacity
(2)
l/h
35
6
5
105
35
65
105
(1) The pressure is automatically adjusted, depending on operating conditions (water salinity and temperature).
(2) The nominal capacity is given for a new unit, nominal membranes performances, operating in standard seawater TDS 35000ppm (35g/l) and temperature
25°C. The capacity can vary from +/-10%, according to allowances given by the manufacturers of the membranes.