We have a large chiller loop (~40k gal)that distributes chilled (-40F) methanol water (60%/40%) to a large number of heat exchangers and condensers. We recently had a 316L ss condenser welded tube failure at the welded seams. Attack appears to have occured from the methanol water side. The first...
We have a large capacity closed hydronic heating system charged with 50/50 blend of propylene glycol and demin water. The glycol/water is about 10 years old and was never properly inhibited until about 7 months ago. Prior to inhibiting, the glycol/water was tested and found to have a pH of about...
