To maximise efficiency steam Boilers are blown down continually, or / and at regular intervals, to remove suspended and dissolved solids (sludge) which can cause overheating of the heat transfer surfaces of the boiler. The sudden discharge of high temperature pressurised hot water is dangerous and can damage connections on the network which is why tanks that accept blowdown should be constructed as pressure vessels so to cope with the shock loading of intermittent blowdown.
In addition it is necessary to avoid the discharge of hot water into the public system, particularly if the system is pressurised as any discharge would lead to flash steam.
Accordingly the installation of a blowdown or flash tank is required.
Rednal has its own experienced team to design these systems for any type of installation with heat recovery units integrated into the tanks to produce heating or potable water.
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