Connecting The Cooler - BOWMAN EC Series Installation, Operation, Maintenance Manual

Or in series:
2.3 Connecting the oil cooler
Shut off all drainage valves in the flow and return pipes in both circuits.
When fitting the oil cooler into the pipe work care must be taken to ensure that no debris
has been introduced into the oil cooler.
Take Care
Unsupported lengths of pipework should be avoided so as not to subject the oil cooler
to excessive loads.
Water side pipework diameter should not reduce to less than the connection size within a
distance of 1m from the oil cooler.
Measures should be taken to isolate the oil cooler from excessive vibration.
Taper fittings are not recommended as these can split the shell and end cover castings if over
tightened.
The correct length of fitting should be used as too long a fitting will damage the tubestack.
Pipework materials must be compatible with the oil cooler materials. Stainless steel sea water
pipes and fittings should not be used adjacent to the oil cooler.
If the sea water supply is taken from a ships main, ensure that the recommended flow rate
cannot be exceeded. This will normally mean that an orifice plate must be fitted in the pipe
work at least 1m before the cooler with the orifice size calculated to ensure that the maximum
sea water flow rate cannot be exceeded. If these precautions are not taken, it is possible that the
sea water flow rate through the cooler may be several times the recommended maximum
which will lead to rapid failure.
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