Bossmanfilter BEX - Series Shell and Tube heat exchangers system consisting of two pressure chambers and separated by the internal tube wall.One medium flows through the shell chambers and the second medium flows through the tube chamber.The flow through the shell will be controlled by baffles such that there is as much cross-flow to the tubes as possible.Fixed tube bundle heat exchangers the tubes are having minimum tube pitch and permitting a greater number of tubes,resulting in maximum cooling surface area per unit volume of space.