Mokelikeli-khatello ea tšireletso valve
1.Mokelikeli-khatello ea setaele sa ts'ireletso ea valve ke sesebelisoa sa motlatsi oa valve ea ho phefumoloha (moving disc style), khatello e sebetsang ea aspiration le ho felloa ke nako e phahame ho feta valve ea phefumoloho (moving disc style), joalokaha hang ha valve ea ho hema e sa sebetse Mariha, disc e tsamaeang e tla be e hoamisitsoe, tiiso ea mokelikeli ea valve ea tšireletso ea setaele sa khatello ea metsi e ka robeha bakeng sa ho sireletsa tanka ea oli.
2.Li-valve tsa tšireletso ea khatello ea metsi li tla kenngoa ka holim'a tanka ea oli le ho sebelisoa ka mokhoa o fapaneng le valve ea ho hema.
3.Khatello ea taolo: + 56mm kholomo ea metsi ho - 50mm kholomo ea metsi.