O-ring versus flat gasket?
O-ring versus flat gasket?
(OP)
In sealing two parts, say 8" in diameter and smaller, what are the pros and cons of o-rings versus the same for gaskets? I think for chemical compatibility, o-rings would have to win hands down thanks to the variety of materials all the way up to the perfluoro's (Kalrez). I've never seen any guides on either for design purposes, especially as it pertains to pumps (casing to cover, gland to cover, impeller nut, etc).





RE: O-ring versus flat gasket?
There is no simple answer to your question. Temperature, pressure, chemistry, configuration, stresses, maintenance needs, and who-knows-how-many-other-factors all affect the choice of gasket material and design for a particular application. Sometimes a sealant may be a valid choice insstead.
RE: O-ring versus flat gasket?
RE: O-ring versus flat gasket?
http://www.sealinfo.com/isiweb/website.nsf
http://www.sealanddesign.com/product.html