Blowdown expansion and cooling units BEX

The BEX blowdown expansion and cooling tank is used in modern boiler rooms to cool the blowdowns of steam boilers before they are discharged to the general drainage system.

The boiler blowdowns are discharged into the BEX expansion tank at atmospheric pressure and are cooled by the supply of cold water through a thermostatic control valve which is controlled by a thermostat mounted inside the tank.

If the generated flash steam cannot be recovered or is discharged into the environment, an additional water spray system can be installed inside the BEX tank.

This is mounted on top of the unit and can be controlled directly by another thermostat or by the same control that activates the automatic sludge purge.