7
3) Close the case after taking out the mounting frame to
avoid that the remaining parts in the case get lost or
damaged.
4) Position the mounting frame on/in the opening of the
top plate of the sea chest.
5) First tack-‐weld the frame into position to minimize
deformation during final welding (see fig. 6).
Check the flatness. The maximum flatness deviation
after welding is 3 mm. Too much deformation may
cause leakage as it is not possible to make a water
tight connection.
Figure 6. Welding of the mounting frame.
6) Complete the final weld. Make sure the tack welds do
not interfere with the smooth completion of the final
weld.
7)
After welding, the mounting frame and sea chest
shall be suitably coated.
Protect the tube bundle against paint!
Do not coat the cathode plates of the ICAF system!
(when applicable)
4.3.
MOUNTING
The box cooler can be mounted in two different ways:
§
From above (top-‐mounted), see section 4.3.1.
§
From below (bottom-‐pull), see section 4.3.2.
Bottom-‐pull mounted box coolers are optional
supplied with a header frame instead of a separate
mounting flange (see section 4.3.3).
Fig. 7 shows an exploded view of a top mounted box cooler
and fig. 8a a cross section detail.
The
collar bolts
are used to fix the tube bundle to the
mounting frame. This allows for removal of the water
cover without loosening the tube bundle.
1
Water cover
2
Gasket between water cover and tube bundle
3
Tube bundle
4
Gasket for mounting frame
5
5
Mounting frame (welded in the sea chest)
6
Bolt (standard hexagonal)
7
Nut
8
Collar bolt
Figure 7. Exploded view of the box cooler
(top mounted).
5
Both gaskets are made of SBR (Styrene-‐Butadiene rubber).
