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doesn't a Y strainer upstream of an F&T Trap impede it's T function?
I'm replacing a couple Illinois 6Gs with Sarco inlines as recommended in my other thread over here and i never really thought about the illinois Y strainers that lead into these traps. they aren't blocked with junk, i've cleaned them a few times, but set as they are, don't they also function as traps and unless their geometry is more carefully calabrated than i can tell just looking at them it seems that there isn't really anywhere for the steam to make it through without forcing its way just under the water near the top of the screen?
Guess its good for the trap not to get junk in it that could lodge in a seat or fill the chamber so float doesn't drop but i'm concerned about good steam venting for the main (these connect the end of north and south mains to the returns) and then good closure once the steam gets there so i'm wondering if these Y traps are the right install, or maybe there is a Y trap that has a high port as well so steam goes over the top even while water goes through the strainer. obviously if it clogged up and backed condensate into the return then dirty water could spill over the steam relief, but that is a maintenance question vs. theoretical operation.
thoughts on necessity for strainer and pointers to alternative hardware if any.