ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
0002 00
DESCRIPTION AND THEORY OF OPERATION
EQUIPMENT DESCRIPTION AND DATA
RO FEED
RO FEED TANK T-2
RO FEED PRESSURE GAUGE PI-202
PRESSURE TRANSMITTER PT-201
HP PUMP FEED VALVE V-212
TEMPERATURE
INDICATOR TI-202
STRAINER S-4
RO FEED
TEMPERATURE
TRANSMITTER TT-201
TANK HEATERS
S-4 DRAIN VALVE V-213
ANTISCALANT
H-1 H-2
INJECTION CHECK
VALVE V-623
STRAINER
S-3
RO FEED TANK
AUXILIARY DRAIN VALVE V-210
RO FEED TANK
LEVEL TRANSMITTER LT-201
MAIN DRAIN
HPP INLET DRAIN
VALVE V-412
RO FEED PUMP P-4
VALVE V-214
Figure 13. RO System: RO Feed Pump to High Pressure Pumps.
RO System: High Pressure Pumps (see Figure 14)
High Pressure (HP) Pumps P-5 and P-6. The reverse osmosis process is pressure driven.
Water only moves through the RO membrane pores if it is under pressure. Higher feed water salt
content requires higher pressure to force water through the RO membrane pores and produce
water than feed water with lower salt content. The high pressure pumps provide the operating
pressure required by the RO elements to produce the desired product water flow.
HPP Lubricant Return Lines. A portion of the feed water that is delivered to the pumps is used
to lubricate the pumps and is discharged at low pressure back to the RO feed tank.
HPP Case Drain Valve V-215. Used to drain the high pressure pumps.
HIGH PRESSURE PUMPS
P-5
P-6
HPP LUBRICANT
RETURN LINE
DISCHARGE TO
TURBOCHARGER
HPP OUTLET
PRESSURE RELIEF
VALVE RV-301
HPP CASE DRAIN VALVE V-215
HPP INLET
HPP OUTLET
HPP DISCHARGE PRESSURE GAUGE PI-301
Figure 14. RO System: High Pressure Pumps.
0002 00-13
