TM 55-1930-209-14&P-1
Table 11-5. Seawater System Valves (continued)
Figure
Label Identification
Type
Callout*
Location
and Valve Function
1-in gate valve
SW24
Void 2 starboard - In
SEAWATER PUMP 1 TO
seawater supply line
CHLORINATION UNIT.
between seawater pump
Allows seawater from sea-
water pump 1 to be supplied to
chlorination system
1-in gate valve
SW25
Void 2 starboard - In
SEAWATER PUMP 2 TO
seawater supply line
CHLORINATION UNIT:
between seawater pump
Allows seawater from sea-
2 and valve SW48
water pump 2 to be supplied to
chlorination system
2 1/2-in gate
SW26
Void 2 starboard - In
SEAWATER FILTER OVER-
valve
seawater filter drain
BOARD DISCHARGE:
line on starboard shell
Allows seawater from filter drain
lines to discharge directly
overboard
1 1/2-in gate
SW27
Void 2 port - In cooling
STRAINER 3 TO AIR CONDITIONER
valve
pump supply line
COOLING PUMP. Allows seawater
to flow to cooling pump and
isolates pump from strainer 3
1-in globe
SW28
Void 2 port - In cooling
AIR CONDITIONER COOLING
valve
(Barges
seawater inlet line
WATER. Allows seawater from
2 and 3
cooling pump to flow to air
only)
conditioning cooling coils and
isolates pump from air conditioning
unit
4-in globe valve
SW29
Void 2 starboard - In
SEAWATER PUMPS TO
ballast tank fill line
BALLAST TANK: Allows
on discharge side of
seawater to flow from seawater
seawater pump 1
pumps into ballast tank
and isolates ballast tank
2-in gate valve
SW30
Deckhouse workshop - In
SEAWATER SEACHEST
seachest vent line
VENT: Allows seachest venting
1/4-in gate valve
SW31
Void 2 starboard - In
STRAINER 1 PRESSURE IN:
seawater supply line on
Allows pressure reading
input side of strainer 1
on supply side of strainer 1
1/4-in gate valve
SW32
Void 2 starboard - In
STRAINER 1 PRESSURE
seawater supply line
OUT: Allows pressure
on discharge side of
reading on discharge side
strainer 1
of strainer 1
1/4-in gate valve
SW33
Void 2 starboard - In
STRAINER 2 PRESSURE IN:
seawater supply line on
Allows pressure reading
input side of strainer 2
on supply side of strainer 2
1/4-in gate valve
SW34
Void 2 starboard - In
STRAINER 2 PRESSURE
seawater supply line
OUT: Allows pressure
on discharge side of
reading on discharge side
strainer 2
of strainer 2
11-19
