Hi Paul

  I was going to order O-Rings from Creavey Seal Co but had a couple of questions.  On their web site they talk about FEP Teflon and PFA Teflon Encapsulation Material.  Which do we want?  I took the data out of your article below for a 3^rd Gen… Just wanted to check and make sure it is correct.  Also, I didn’t see a way to place an order on Creavey’s web site. Is there a link to a catalog or do you have any part numbers for the O-Rings and do I need to just call them?

 see the attached jpg

Thanks


Mike C.


Yes. I called them in the past.

Long story on FEP verses PFA but for our ap  it matter not probably :)

http://en.wikipedia.org/wiki/Fluorinated_ethylene_propylene

http://www.rotaryeng.net/TEFLON_COATED_O_RINGS_IMG4.GIF

http://www.rotaryeng.net/O-ring-size2.html


Paul Lamar

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