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2. Weld the Bottom Flange into the hole; ensure that it is positioned so that the Sea Valve
may be fitted inboard(in desired direction) without obstruction.
Welding Bottom Flange DB in Ship’s Hull
x The welded joint must be ground smooth and flush with the hull. There must be no
sharp edges to interfere with the water flow around the Transducer.
Welded joint grinding
3. Cut a circular hole (diameter 200 mm) in the Tank top, vertically above the Bottom
Flange DB position (refer to step 3.).
Hole cut in Tank top
Tank Top
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