TM 55-1930-209-14&P-19
Table 3-2. ROWPU System Valves (Continued)
Label identification
Type
Valves
Location
and Valve Function
3-in.
RO19
ROWPU space - in
MEMBRANE CLEANING
gate valve
(Barges
board of pretreatment
SOLUTION RECIRCULATION;
2 and 3
skid
during RO block membrane
only)
cleaning, allows cleaning solution
to recirculate through
seawater pump
3-in.
R020
ROWPU space - between
PRODUCT WATER TO
gate valve
(Barges
RO block and HP pump
OVERBOARD; allows flow of
2 and 3
product water from RO block to
only)
overboard
4-in.
RO21
Void 3 port shell
PRODUCT WATER
gate valve
(Barges
OVERBOARD DISCHARGE;
2 and 3
allows product water from RO
only)
block and RO 20 to flow overboard
3-3 ROWPU System Description. The ROWPU system processes seawater or brackish water supplied by the
seawater system to create drinking water. Chlorine is added to the processed water by the chlorination system. The
resulting drinking water is then discharged into four drinking water storage tanks.
Section II
Table 3-3. Preventive Maintenance Checks and Services for ROWPU System
B -
Before
D -
Daily
Q - Quarterly
D -
During
W -
Weekly
S - Semiannually
A -
After
M -
Monthly
A - Annually
INTERVAL
ITEM
PROCEDURES
EQUIPMENT
ITEM
TO BE
CHECK FOR AND HAVE
IS NOT READY/
NO.
INSPECTED
REPAIRED OR ADJUSTED
AVAILABLE IF
B D A D W M Q S A
AS NECESSARY
ROWPU SYSTEM
1
*
*
*
Small Components
a. Wipe components clean, especially pres-
Gauges inoperable.
sure gauges, flowmeters, indicators and
control panels.
*
*
*
b. Check for leaks, paying special attention
Pressure drops
to joints, valves, fittings and piping.
below normal
Report uncorrectable leaks to shift leader
level.
or bargemaster.
3-5
