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Header Tank Exchangers - Heating Exchanger

Introduction

These header tank heat exchangers can be used for marine engines as well as 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 easily be removed for cleaning if necessary.

Bowman manufacture a large range of header tank heat exchangers. There is a choice on the raw water side of single pass, two pass and three pass heat exchangers for different flow rates. There are also different end cover materials depending on whether the heat exchangers are used with fresh water, sea water or contaminated water.

Bowman header tank heat exchangers can be selected from our technical program if the following information is supplied:

Heat to be dissipated kW Engine water flow l/min
Max engine water temperature °C Raw water temperature °C

Type of raw water (ie. fresh water, sea water or contaminated water)

If the raw water flow is fixed please inform us, if not we can advise on the flow required.

We have some header tank heat exchangers which have been designed for specific engines, for more information on these please see our website www.ejbowman.co.uk

Installation

The header tank heat exchanger should be mounted with the header tank above the 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 so 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 Header Tank Heat Exchangers

The range of Bowman marine header tank heat exchangers showing the various raw water flow options.

Single pass marine Two pass marine Three pass marine
Part number Max raw water flow l/min Part number Max raw water flow l/min Part number Max raw water flow l/min
DH090-3604 60
DH120-3064-1 60
EH100-4265-2GM 180 EH100-4165-2 85 EH100-3401-2 54
EH200-4265-3GM 180 EH200-4165-3 85 EH200-3401-3 54
FH100-4266-2GM 270 FH100-4166-2 140 FH100-3182-2 95
FH200-4266-3GM 270 FH200-4166-3 140 FH200-3182-3 95
FH300-4267-2GM 375 FH300-4167-2 190 FH300-3282-2 125
FH400-4267-3GM 375 FH400-4167-3 190 FH400-3282-3 125
FH500-4267-4GM 375 FH500-4167-4 190 FH500-3282-4 125
GH200-4268-2GM† 640 GH200-4168-2† 330 GH200-3482-2† 225
GH300-4268-3GM† 640 GH300-4168-3† 330 GH300-3482-3† 225
GH400-4268-4GM† 640 GH400-4168-4† 330 GH400-3482-4† 225
KH200-4269-3GM† 975 KH200-4169-3† 490 KH200-3071-3† 325
KH300-4269-4GM† 975 KH300-4169-4† 490 KH300-3071-4† 325
KH400-4269-4GM† 975 KH400-4169-4† 490 KH400-3071-5† 325
JH200-4270-3GM† 1400 JH200-4170-3† 700 JH200-3335-3† 460
JH300-4270-4GM† 1400 JH300-4170-4† 700 JH300-3335-4† 460
JH400-4270-5GM† 1400 JH400-4170-5† 700 JH400-3335-5† 460
PH200-4271-4GM† 2125 PH200-4171-4† 1050 PH200-3073-4† 700
PH300-4271-5GM† 2125 PH300-4171-5† 1050 PH300-3073-5† 700
PH400-4271-6GM† 2125 PH400-4171-6† 1050 PH400-3073-6† 700

*For units fitted with copper tubes add suffix TC to part number
†Murphy Water Level Switch can be fitted to these units

Land Based Header Tank Heat Exchangers

The range of Bowman land based header tank heat exchangers showing the various raw water flow options.

Single pass land* Three pass land*
Part number Max raw water flow l/min Part number Max raw water flow l/min
DH090-3064 60
DH120-3064-1 60
EH100-4265-2 270 EH100-4065-2 80
EH200-4265-3 270 EH200-4065-3 80
FH100-4266-2 400 FH100-4066-2 140
FH200-4266-3 400 FH200-4066-3 140
FH300-4267-2 560 FH300-4067-2 185
FH400-4267-3 560 FH400-4067-3 185
FH500-4267-4 560 FH500-4067-4 185
GH200-4268-2† 960 GH200-4068-2† 335
GH300-4268-3† 960 GH300-4068-3† 335
GH400-4268-4† 960 GH400-4068-4† 335
KH200-4269-3† 1460 KH200-4069-3† 485
KH300-4269-4† 1460 KH300-4069-4† 485
KH400-4269-4† 1460 KH400-4069-4† 485
JH200-4270-3† 2070 JH200-4070-3† 700
JH300-4270-4† 2070 JH300-4070-4† 700
JH400-4270-5† 2070 JH400-4070-5† 700
PH200-4271-4† 3200 PH200-4071-4† 1050
PH300-4271-5† 3200 PH300-4071-5† 1050
PH400-4271-6† 3200 PH400-4071-6† 1050

*For units fitted with copper tubes add suffix TC to part number

†Murphy Water Level Switch can be fitted to these units

The range of Bowman header tank heat exchangers showing their power ratings, various water volumes and our equivalent non header tank shell and tube units.

Type
Typical engine suitability Raw water volume Engine water volume Header tank capacity Shell & tube heat exchanger
DH90 • 15 20 0.21 0.8 0.54 DC90
DH120 • 20 27 0.28 1.25 0.9 DC120
EH100 40 54 0.45 1.3 0.9 EC100
EH200 50 67 0.6 2.2 1.32 EC120
FH100 60 80 0.85 3.25 2.08 FC100
FH200 90 120 1.1 4.5 2.93 FC120
FH300 120 160 1.55 6.55 4.12 FG100
FH400 150 200 2 9.15 5.7 FG120
FH500 190 255 2.4 11.4 7.5 FG140
GH200 180 240 3.1 10.9 6.2 GL140
GH300 250 335 3.8 14.85 8.54 GL180
GH400 320 428 4.6 18.1 11.24 GL240
KH200 360 482 6.3 18.8 13 GK190
KH300 450 600 7.5 25.6 17.33 GK250
KH400 550 737 9 33.5 22.56 GK320
JH200 550 737 8.8 27.2 18.56 JK190
JH300 700 938 10.4 36.9 24.8 JK250
JH400 850 1140 12.5 46.3 32.26 JK320
PH200 950 1273 18.6 49 34.24 PK250
PH300 1200 1608 21.8 64 44.63 PK320
PH400 1400 1876 25.3 81 56.43 PK400

 

Maximum working raw water pressure 15 bar
Maximum working engine water pressure 1 bar (Filler cap rating dependant)
Maximum working temperature 110°C
*This column shows the equivalent shell and tube heat exchanger. If this type is required instead of a header tank heat exchanger, please contact us for further details of full part numbers.
• Refer to website for dimensions.