Beta Marine Beta 14 Installation Manual page 17

Steel Tanks
Engine Model Size (ft)
Beta 14 3.5
Beta 16 4.0
Beta 20 5.0
Beta 25 6.3
Beta 30 7.5
Beta 35 8.8
Beta 38 9.5
Beta 43 10.8
Beta 50 12.5
Beta 60 15.5
Beta 75 18.8
Beta 90 22.5
Beta 105 25.0
31 Ideal Keel Cooling Tank
Efficient keel cooling tanks are side mounted, see
Steel Tanks
2
Size (m )
illustration. The ideal keel cooling tank should have:
0.33
a) The 'baffle' must be continuously welded to the
outer skin and to one end as shown, and should
0.38
be close fitting to the inner skin.
0.46
b) The tank should be thin in section (H= 30mm
0.59
to 40mm) as it is the heat transfer to the canal
0.70
or river water that is important.
0.82
c) The tank must have air bleed valves fitted on the
top at both ends of the tank.
0.88
d) The hot water feed enters at the top of the tank
1.00
and the engine return comes out of the bottom.
1.16
1.43
1.75
2.09
2.32
17