Vacuum wand issues

Robin King robinhmb at yahoo.com
Tue Oct 2 14:16:15 PDT 2007


Ted,
Thanks for looking into this.  At the Thermco bank there's only one
wand to service all four pieces of equipment so could we have a
second one installed as a backup?  Wands get dirty, chipped, loose,
etc.  Thanks,  
Robin


--- Ted Berg <tberg at stanford.edu> wrote:

> Hello all,
>       As  some of you might be aware we have recently had numerous 
> issues with the vacuum wands on the furnaces   I have contacted the
> 
> vendor of our vacuum wands and it looks like the bonder they use to
> 
> attach the quartz to the metal is breaking down(melting ) as the
> wands 
> are used. They are not sure if it is a shelf life issue or just a
> bad 
> batch of the adhesive. They will repair our bad wands and have
> suggested 
> an alternative. Even though the quartz is rated to 1400 degrees C
> the 
> adhesive obviously is not.. Thank you for your patience. ted
> 



       
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