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Aluminum HX, Condensate and Corrosion

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  • eluv8
    eluv8 Member Posts: 174
    Herbs boiler problem

    Herb, there was a problem with SOME of the Aluminum safe glycols reacting with SOME of the Aluminum boilers out there. the Buderus Aluminum boilers were having problems in particular with Hercules Cryotek AL glycol this last year that I know of and any other AL glycol using a similar formula. I only mention Cryotek as that was the Glycol I was informed about. Cryotek has reformulated their glycol to offer an improved compatibility with Aluminum to help maintain a stable PH. If that is the glycol in particular that was used. Just another thought to be considered. Check PH regularly if concerned and at least yearly as part of preventative maintenance. I have had great success with Rhomar also, as recommended in another post.
  • Harold
    Harold Member Posts: 249


    Does anyone happen to know when Cryotech fixed any problems they had with Al exchangers? Anyway to find out if it is a problem mixture from the container?
  • Xc8p2dC
    Xc8p2dC Member Posts: 41
    From W-M

    It was related to high PH, second part of this DOC

    http://www.weil-mclain.com/professionals/services/Bulletins/SB0801.pdf
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