I do like the phrase "dynamic O-ring". Sounds like a very dorky superhero or unimaginative pro-wrestler.
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Like I said, in operation is is static but during assemble it is by def dynamic....it moves past it's mating surface until it come to rest and if it moves it is subject to be deformed by that motion. Lubrication is to help prevent that deformation and to ensure it is not deformed when it reaches it final resting place. The only truly static Oring seal I can think of that is used in scuba is the oring in some camera housing, Ikelite for one.
you must be right... Parker doesn't know **** about o-ring design so maybe they should rewrite their design guide so that installation now makes an o-ring dynamic.