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Header Tank Heat Exchangers

These heat exchangers were designed originally for marine engines, but they are also widely used for various land based duties, such as engine testing and development work, generator sets, fire pumps and combined heat and power systems. They incorporate a quiet zone header tank with a special deaeration feature and a pressurised filler cap. The removable tube stack is held in position by ‘O’ rings and is free to expand and contract within the cast housing, thus minimising thermal stresses. It can be easily removed should cleaning be necessary.

Installation
The heat exchanger should be mounted with the header above cylinder head level and with the engine water circuit arranged so that it is self venting on initial filling. A by-pass type thermostat should be used and arranged so that only the heat exchanger is by-passed when the engine is cold. All other components including a water jacketed exhaust manifold if fitted, any oil coolers, charge air coolers and exhaust gas heat exchangers should be so positioned in the circuit that they always receive the full flow of the engine water pump.

Thermostats of the type used on some automotive engines, which simply interrupt the cooling water flow when the engine is cold, are not recommended. For unattended operation, automatic engine shut down equipment should be provided. Marine
The standard cast iron end covers are satisfactory for fresh water. For contaminated or sea water we can at extra cost supply bronze end covers.


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Bowman E J (Birmingham) Ltd

Header Tank Heat Exchangers