mehanik - 12-5-2008 at 19:56
Set of used glassware (assembly C) was bought for this R-121 unit. Condenser assembly itself holds vacuum well, no leaks.
http://i295.photobucket.com/albums/mm121/ximij/STP80842.jpg
But when connected to vapor duct hissing noise comes from little hole on the bottom of the flange.
http://i295.photobucket.com/albums/mm121/ximij/STP80834.jpg
Not even sure if I have a right seal.. (KD-22?)
http://i295.photobucket.com/albums/mm121/ximij/STP80840.jpg
http://i295.photobucket.com/albums/mm121/ximij/STP80847.jpg
Is it just worn out ptfe vacuum seal, smth else or my stupidity-)) ??
Thanks for help !
stoichiometric_steve - 16-5-2008 at 13:37
the seal should be allright, try greasing it a BIT. no idea what the "little hole" refers to.