Sea Valves, Strainers, and Sea Chests

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Figure 3-33. Eductor ( jet suction ).

TM-55-1925-204-12 TUG Harbor Diesel 1200 H. P. Steel 100 Ft Design 3006 Flight One FSN 1925-375-3003 Manual

Figure 3-34. Sea valve and sea chest ( typical).

3-29. Sea Valves, Strainers, and Sea Chests

NOTE

a. General. The sea chests are located below the

Attach suction strainer to

eductor

water line on curvature of the hull, one above the other

before using.

in pairs. They are box link structures inside, with

screened openings to the water. The screens are to

(3) Connect a discharge hose of suitable

keep marine life and help from entering the sea valves

length to discharge overboard from bottom of sunken, or

(fig. 3-34) which control raw water entry for the cooling

flooded object to the discharge port of eductor (fig. 3-

and the fire fighting systems Anodes may be tacked

33). Anchor the discharge end of hose above water

(spot weldedl to wall, or in rings at valves, to minimize

level and overboard

the chemical action of raw water on metal. Strainers

(4) Drop eductor into area to be dewatered

(fig. 3-35) are located in lines to further filter matter from

(5) Place the remaining eductor in operation

the raw water.

in a similar manner

3-75