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breaker34 (Mechanical)
16 May 11 17:14
Does anyone have any experience with high temperature o'rings, or if there is such a thing? Looking at a ring that can withstand the API fire testing for a high pressure valve. Any suggestions?
GrahamBennett (Materials)
17 May 11 7:51
Viton or silicone
breaker34 (Mechanical)
17 May 11 9:51
I am looking at 15k pressure rating. Also, I am pretty sure viton only reaches 400f. The fire test will see over 1100F.
johnchrc (Mechanical)
21 May 11 6:03
Are they static?

Look at metal o-rings (SS and high temp alloy steel tubing.  They can handle the temperature to 1,800F).

Try and search.  There are several I know of.   You can also design your own metal-to-metal seal.   

Try Garlock HelicoFlex.
utkk (Mechanical)
24 May 11 21:37
You can use silicone, SBR, EPDM etc.  

Rubber engineering

Metten (Materials)
25 May 11 3:38
utkk: they will not survive such high temperatures.

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