TDS blowdown controls

Automatic TDS blowdown controls help keep dissolved solids in boiler water within the target range by monitoring conductivity and adjusting blowdown automatically against a setpoint. That matters because excessively high TDS can increase carryover risk and upset steam quality, while excessively low TDS can waste heat, treated water and chemical cost through unnecessary blowdown. Spirax Sarco TDS blowdown control systems provide continuous boiler water quality management rather than relying on periodic manual intervention alone. They are typically built around controllers, conductivity probes and blowdown valve assemblies that work together to reduce avoidable fuel and water loss while supporting stable boiler chemistry. These systems are especially valuable where boiler load varies through the day and manual blowdown routines are too inconsistent to maintain efficient control. They are also a practical route for sites that want clearer, more repeatable boiler water control without depending on frequent operator intervention.