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Ecomike

07/23/10 12:50 PM

#17764 RE: greenpar #17760

I actually do consulting work for a coating applicator that does Kynar(R), Moly, and other Teflon(R) type coatings. Very familiar with them. They are used on dry, oil free compressors which I also use, but they have a shorter life than liquid lubed compressors. I don't believe the composites can handle the operating pressures, loads, lbs of force per square inch, in this application, due the high steam pressures he is using, that requires a material like steel. Also, he says he is operating in the super critical fluid pressure range, where water acts like an extreme corrosive, like acid almost. I suspect he may be using a water soluble oil (PEG, PAG, ester or something similar?) of some sort, but not mentioning it, but at those temperatures and pressures water is great at converting any hydrocarbon into CO2 and water (google "super critical oxidation water"). Perhaps he is using an expensive flourocarbon based, water soluble lubricant additive that resists oxidation at those high temps and pressures, if there is such a thing? Last time I checked the Teflon and Kynar coatings were only good up to about 700 F. Only silicone and ceramic coatings could go higher. Is'nt he claiming to running at steam temps up to 1500 F? I forget. I will look again this weekend at their web site.

Are you saying that is what Cyclone is using, or just guessing?