carbon filled ptfe piston rings? - CNCzone.com-The Largest Machinist Community on the net!

samco · #1 09-16-2009, 08:57 PM

does anyone know a source for stock carbon filled ptfe(teflon) rings?

I am flexable in size - around 2 inches or more.... Looking for the 500Deg F working temp. (used a lot in oilless air compressors)

thanks
sam

samco · #2 10-01-2009, 01:28 PM

ok - add to carbon filled ptfe

source for rulon? (seems to also have the 500deg temp I am looking for)

(piston and rider rings)

I am coming up with zilch

thanks
sam

Aplus · #3 10-01-2009, 01:53 PM

http://www.industrialcarbons.com/car...ptfe-rings.htm

Dropout · #4 10-01-2009, 02:05 PM

PTFE seals are used extensively in automotive and truck power steering units. The TRW made units have graphite/ptfe seals and most others have glass/ptfe seals.

Find a local power steering rebuilder and they should be able to help you out with something fairly inexpensively.

Dropout

samco · #5 10-01-2009, 02:13 PM

wow - cool. Thanks guys!

samco · #6 03-01-2011, 07:06 PM

what about a source for strait carbon rings? I see that some air compressors use them - but for the life of me cannot find a source. (rings and riders)

thanks
sam

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