* Viton O'ring yophikidwa mpaka 200 ° C pafupipafupi, ikugwiritsidwa ntchito mpaka 150 ° C.
* The vacuum chisindikizo cha ISO-mndandanda wapangidwa ndi compressing O'ring pakati mating flanges.Izi zimachitidwa mosinthana mosinthanasinthana zingwe zomangirira kapena mabawuti mpaka kukhudzana koyamba kwachitsulo ndi chitsulo kupangidwa pakati pa malo amkati a flanges ndi milomo yotalikirana ya mphete yolowera pakati.