Guides and knowledge on boiler water treatment
Carryover also known as priming is any solid, liquid or vaporous contaminant that leaves a boiler with the steam. In low/medium pressure boilers (<100 bar) entrained boiler water is the most common cause of steam contamination.
The objective of a boiler water programme is to control/minimise deposit formation, corrosion and carryover, in order to achieve this, a treatment programme will comprise: An oxygen scavenger Polymers to provide deposit control Phosphate except for steam generators or where feedwater quality is very high and the Feedwater alkalinity is a high proportion of TDS…
From the heavily used chartered steam train to the traction engine that only see’ service at a number of heritage fairs a year, all types of steam locomotive should receive water treatment of some kind. For many this is Tannin and Soda ash and maybe even a polymer sludge conditioner.