TM 10-4610-240-24
TM 08580C-24/2
TO 40W4-13-22
1-11. DIFFERENCES BETWEEN MODELS- continued.
a. Only model WPES-1 is mounted on a flatbed cargo trailer. A self contained 30KW generator set installed on
the trailer supplies electrical power for operation of the unit Models WPES-2 and WPES-3 are skid mounted (no
trailer)
b. Both models WPES-2 and WPES-3 get electrical power from an external source that is not supplied with the
unit
c. Differences In the electrical systems are
(1) Models WPES-1 and WPES-3 have only one external power connector on the junction box internal
wiring between these two models is identical
(2) Model WPES-2 has two external power connectors on the junction box One connector supplies power to
the high pressure pump (R.O. pump) motor, the other supplies power to remaining system components
Both power cords must be connected to operate the unit Internal wiring is different between this unit and
models WPES-1 and WPES-3
d. Differences In the piping systems are
(1)
Piping on models WPES-2 and WPES-3 is identical On both models, the R.O. elements must be
removed from both the front and back of the of the R.O vessels.
(2) The 30KW generator set installed on the flatbed cargo trailer of model WPES-I prevents removal of the
R O elements from the back of the R.O. vessels. Piping is different on this model to allow removal of
all R O elements from the front of the R O vessels
1-12. EQUIPMENT DATA.
For equipment data pertaining to the ROWPU, refer to TM 10-4610-240-10, TM 08580C-10/1, TO 40W4-13-21
Section III. TECHNICAL PRINCIPLES OF OPERATION
Alphabetical Index
Paragraph Title
Paragraph
Component Technical Principles of Operation ...........................................................................................
System Technical Principles of Operation .................................................................................................
1-13. SYSTEM TECHNICAL PRINCIPLES OF OPERATION.
Reverse osmosis is the process by which purified water is separated from the available seawater or brackish water
source Pressure is applied to the raw water side of a semipermeable membrane, and desalinated water diffuses through
the membrane to the freshwater side The 600 GPH ROWPU is arranged so that prefiltered water is pumped under
pressure across the semi-permeable membranes, called R O membranes The R O membranes separate this water
stream into a product water stream and brine concentrate stream, both of which continuously flow away from the
membranes
1-4