View Full Version : Water Chiller Evaporator Leaks
Whisty
19-08-2006, 11:43 PM
Has anyone else experienced an excessive amount of shell and tube evaporator failures lately? I haven't seen one for quite a while and now I have had 2 in 6 weeks. I have pulled the bundle from one machine and found two pinholes in the same line within a foot of each other. No sign of freeze up etc, it just looks like poor quality copper has been used.
Regards
Whisty
US Iceman
20-08-2006, 02:22 AM
Hi Whisty,
Where were the holes in the tubes?
Close to the tube sheets?
slingblade
20-08-2006, 07:45 PM
No, not done one for a while. does remind me of two chillers around the 300 kw size piped to a bulk tank which a company flushed with acid. only problem was the flush was supposed to be 24 hours but for some reason they left it in for 2 months, the result was very amusing indeed, and costly.
Whisty
21-08-2006, 07:23 PM
There were no known "water treatment" issues and the tube has pinholed midway between baffles.
I only ask since there have been rumours circulating lately that copper quality on some manufacturers chillers has been suspect due to cost cutting.
Whisty
abdulazman
22-08-2006, 01:23 AM
Hi Whisty,
Conduct proper Eddy Current Inspection on those vessels.
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