ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
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DESCRIPTION AND THEORY OF OPERATION
THEORY OF OPERATION
PRESSURE
UPPER FEED VALVE V-112
GAUGE
MF MAIN FEED
PI-101
FILTRATE OUT
VALVE V-111
VENT VALVE
V-110
WASTE
OUT
FLOW
ELEMENT
FE-101
DRAIN VALVE
V-109
PRESSURE
TRANSMITTER
MF MODULE
PT-101
FILTRATE
S-2
OUT
WASTE
OUT
LOWER FEED
VALVE V-113
Figure 4. MF System: Strainer S-2 to MF Modules.
INSTRUMENT/SOLENOID
PANEL BOX
MF FEED FLOW TRANSMITTER
FT-101
CIT-501
RO REJECT FLOW TRANSMITTER
PRODUCT FLOW TRANSMITTER
FT-401
FT-501
Figure 5. Instrument/Solenoid Panel Box.
The feed water flows into the top and bottom shell of each of the 12 MF elements and around the outside
of the MF filtration fibers contained within each element (see Figure 6). The feed water then flows
through the fiber pores and into the hollow center of each fiber. Dirt and organic materials in the feed
water build up on the outside of the fibers until removed through the waste outlets by the next backwash.
The filtered feed (filtrate) flows out the hollow center of the MF fibers and into filtrate collection channels.
The channels collect the filtrate from the modules and direct the flow out the upper and lower filtrate
outlets of the MF assembly.
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