TEFLON LINING LIFE AS FUNCTION OF TEMPERATURE

[gacguy]

I would like to know if the life of a teflon lining in a boiler at 212 degrees F would be less than that at ambient temperature.

I've been told it would decrease by one-half.

 

[moltenmetal]

Life as measured how? What's the function of the lining? What is it boiling- just pure water? What sort of lining: solid PTFE or PFA oR ETFE? Or is it spray-applied?

 

[gacguy]

Thank you moltenmetal for your time.

As sometimes happens my customer, who is an intermediary for his customer, doesn't know the answer to your questions re type of lining etc. and his customer is going forward with accepting that operating the boiler at 212 degrees is not a problem.

I guess time will tell.

gacguy

 

[moltenmetal]

Considering that neither service nor failure were defined at all, how would you know one way or the other?

 

[PAN]

A manufacturer told me that if no annealing process from the factory, during use in high temperature service, the internal stress will release and PTFE will strinkage.

gacguy,
Please explain more about your case. Where is the specific location of problem (flange, elbow or etc.)?

 

[gacguy]

PAN and moltenmetal,

Thank you both for taking the time to respond to my initial query.

The party who asked the original question, per the intermediary party, is not providing any further information and so my contact said to forget about it.

Perhaps, when or if the lining fails, they will be more diligent in pursuing a suitable solution to their application.

Thanks again,

gacguy