Valve e sebelisetsoa ho bula le ho koala liphaephe, ho laola tsela ea phallo, ho lokisa le ho laola likarolo tsa mochine oa phepelo (mocheso, khatello le phallo) lisebelisoa tsa liphaephe. Ho ea ka mosebetsi oa eona, e ka aroloa ka valve ea shutoff, valve ea ho hlahloba, valve e laolang, joalo-joalo.

Sephahla ke karolo ea taolo tsamaisong ea ho tsamaisa mokelikeli, e nang le mesebetsi ea ho khaola, ho laola, ho kheloha, ho thibela li-current, ho tsitsisa khatello, ho fokotsa kapa ho phalla, joalo-joalo.

Li-valve li ka sebelisoa ho laola ho phalla ha moea, metsi, mouoane, mecha ea litaba e senyang, seretse, oli, tšepe ea metsi le mecha ea radioactive le mefuta e meng ea mokelikeli. Li-valve ho latela thepa li boetse li 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 sa tloaelehang.

Valve e tsamaisong ea mokelikeli, e sebelisetsoang ho laola tataiso ea mokelikeli, khatello, phallo ea sesebelisoa, ke ho etsa phala le lisebelisoa tse mahareng (mokelikeli, khase, phofo) ho phalla kapa ho emisa le ho laola ho phalla ha sesebelisoa.

Valve ke karolo ea taolo ea sistimi e tsamaisang mokelikeli oa liphaephe, e sebelisetsoang ho fetola karolo ea phallo le tataiso ea phallo e mahareng, ka ho kheloha, ho khaoha, ho ts'oara, ho hlahloba, ho kheloha kapa mesebetsi ea khatello ea khatello ea phallo. Valve e sebelisetsoang ho laola metsi, ho tloha ho belofo e bonolo ka ho fetisisa ea lefats'e ho ea ho mokhoa o rarahaneng oa ho laola othomathike o sebelisoang mefuteng e fapaneng ea li-valve, mefuta ea eona le litlhaloso, boholo ba lebitso la valve ho tloha ho belofo e nyenyane haholo ea lisebelisoa ho ea boholo ba liphaephe tsa liphaephe tsa indasteri ho fihla ho 10m. E ka sebelisoa ho laola metsi, mouoane, oli, khase, seretse, mefuta e fapaneng ea mecha ea litaba e senyang, tšepe ea metsi le mokelikeli oa radioactive le mefuta e meng ea phallo ea mokelikeli, khatello ea ho sebetsa ea valve e ka tloha ho 0.0013MPa ho ea ho 1000MPa ea khatello e phahameng haholo, mocheso o sebetsang e ka ba C-270 ℃ ea mocheso o phahameng-tlase ho 1430.

Sephahla se ka laoloa ke mekhoa e sa tšoaneng ea phetisetso, e kang manual, motlakase, hydraulic, pneumatic, turbine, electromagnetic, electromagnetic, electro-hydraulic, electro-hydraulic, gas-hydraulic, spur gear, bevel gear drive; Khatello, mocheso kapa sebopeho se seng tlas'a ketso ea mats'oao a sensor, ketso, ho latela tlhoko ea ho boloka kapa e sa itšetlehe ka matšoao a sensor bakeng sa ho bula kapa ho koala habonolo, ho itšetleha ka drive kapa mochini o ikemetseng o etsa valve ea ho bula le ho koala bakeng sa ho phahamisa, ho thella, sebaka kapa ho potoloha, ho fetola boholo ba boema-kepe ho hlokomela ts'ebetso ea taolo.