TM 55-1925-285-13&P
0006 00
Table 2. Valve Positions For Manual Backflush During Operation Under Unusual Conditions
Item Number
Valve
Function
Position During Operation
(Figure 6)
Number
Under Usual Conditions
1
OWS-1
OWS MANUAL BACKFLUSH
OPEN
2
OWS-2
OWS DISCHARGE
OPEN
3
OWS-3
OWS PUMP DISCHARGE
CLOSED
4
OWS-4
OCM 3-WAY DIVERTER
Controlled by OCM
5
OWS-5
OWS DISCHARGE
OPEN
6
OWS-6
OWS PITOT SAMPLE
CLOSED
7
OWS-7
BACKFLUSH WTR TO PRESS RDCR
OPEN
8
OWS-8
BACKFLUSH WTR FROM PRESS
OPEN
RDCR
9
OWS-9
BACKFLUSH WTR PRESS RDCR
CLOSED
BYPASS
10
OWS-10
OWS RECIRCULATING COV
CLOSED
11
OWS-24
SW TO OWS PRESS GAGE
OPEN
ISOLATION
12
OCM-1
OCM NOZZLE SAMPLER COV
CLOSED
13
OCM-2
OCM BACKFLUSH WATER
CLOSED
14
OCM-3
OCM SAMPLING VALVE
CLOSED
15
OCM-4
OCM INLET
CLOSED
16
OCM-8
OCM GAGE ISOLATION
CLOSED
17
GS-74
OWS BACKFLUSH INLET SOLENOID Automatic (Ensure that the
manual override handle is in
the CLOSED position (CCW)
with the valve stem all the
way out)
18
OB-8
XFR PUMP TO OILY WATER TANK
CLOSED
19
OB-9
XFR PUMP DISCH TO SHORE
CLOSED
20
OB-10
OWS OVERBOARD DISCHARGE
CLOSED
21
OB-13
OWT TO XFR PUMP SUCTION
CLOSED
22
OB-14
COV-XFR PUMP SUCTION
CLOSED
23
OB-15
OWS INLET
CLOSED
24
OB-16
WATER FROM OWT COV
CLOSED
25
OB-17
OILY WATER TANK INLET
OPEN
0006 00-9