Timeline for O-Ring vs flat washer for air seal
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
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| Jul 10, 2017 at 11:55 | comment | added | carveone | Thanks for the help. That's another difference: flat seals need to be compressed, o-ring seals don't (after the initial push). I found some high temperature gasket sealant (blue silicone) which will do 200C so I should start reading instructions for working a lathe now! :-) | |
| Jul 10, 2017 at 11:24 | comment | added | RainerJ | The seal only needs to be compressed between mating flanges. Rubber cement /gasket glue can be used to stick seal to one flange. | |
| Jul 10, 2017 at 11:19 | comment | added | carveone | "Difficult to fabricate" is what I'm trying to avoid but perhaps I'm being too theoretical and I should go and make some experiments! The trouble is figuring out how a seal can be made and then unmade without all the bits falling out. When I look at examples - eg: the oil filler cap on my car is a plastic cap with a rubber seal onto a metal engine top - you can see how precisely fitting everything is with very specific materials (eg: it's not just any plastic to withstand engine temperatures). | |
| Jul 10, 2017 at 11:09 | history | answered | RainerJ | CC BY-SA 3.0 |