Cooling system
47
Seawater supply components
Sea valve
Ball valves which are bolted directly to the scoop
should be used as sea valves À.
These can be swiftly closed in an emergency (pipe
break).
In addition, the "Open / Closed" setting of the valve
can be immediately identified from the position of
the handle.
Seawater filter
The seawater filter Á should be equipped with a
sight glass, a removable cap and a removable filter
basket.
The following approximate values apply to the filter
basket:
− Mesh size max. 3 mm
− Surface approx. 10 times as large as the
inlet cross−section
Positioning of sea water filter:
If possible directly above the sea valve.
In any event the sea water filter must be situated
above the water level.
This allows the filter to be cleaned with the sea
valve open. Furthermore, with the sea valve open,
objects blocking the scoops can be removed
without having to lift the ship out of the water.
Seawater pipes to and from engine
The sea water lines (hoses) must be sufficiently
flexible to compensate movements of the engine
due to its resilient mounting.
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