Bottom blowdown systems

Bottom blowdown removes settled sludge and suspended solids from the base of the boiler before deposits build up and affect heat transfer or internal cleanliness. A more controlled blowdown routine helps maintain steam quality while limiting unnecessary losses of heat, water and treated boiler water. Spirax Sarco bottom blowdown systems cover both manual and automatic approaches, allowing operators to match the blowdown method to boiler size, operating regime and required level of automation. Automatic bottom blowdown control can help make blowdown timing more repeatable, reduce operator intervention and support cleaner boiler operation over time. These systems are often specified alongside blowdown vessels and TDS control hardware when the goal is a more complete and consistent boiler blowdown strategy.