Valve ke karolo ea taolo tsamaisong ea ho tsamaisa mokelikeli, e nang le mesebetsi ea ho khaola, ho laola, ho kheloha, ho thibela li-countercurrent, khatello ea khatello, ho kheloha kapa ho fokotsa khatello ea khatello.
Li-valve tse sebelisoang tsamaisong ea ho laola mokelikeli, ho tloha ho valve e bonolo ka ho fetisisa ea ho emisa ho ea ho mokhoa o rarahaneng oa ho laola ka mokhoa o itekanetseng, mefuta ea eona le litlhaloso li fapane haholo.Li-valve li ka sebelisoa ho laola phallo ea mefuta e fapaneng ea maro a kang moea, metsi, mouoane, mecha ea litaba e senyang, seretse, oli, tšepe ea metsi le mecha ea litaba ea radioactive.Ho ea ka thepa, valve e boetse e arotsoe ka li-valve tsa tšepe tse entsoeng ka tšepe, li-valve tsa tšepe tse entsoeng ka tšepe, li-valve tsa tšepe tse sa hloekang (201,304,316, joalo-joalo), li-valve tsa tšepe tsa chromium molybdenum, li-valve tsa tšepe tsa chromium molybdenum vanadium, li-valve tsa tšepe tse peli, li-valve tsa polasetiki. - li-valve tse tloaelehileng tse ikhethileng, joalo-joalo.