Sefe ea khatellovalavu ea boloke karolo ea phaephe e kopanyang mesebetsi ea ho sefa le ho laola phallo. Vale ena e kenya skrine ea sefe tseleng ea phallo ea valve ea bolo ea setso. Ha sehare (metsi, oli kapa maro a mang) se phalla, se qala ka ho thibela litšila tsa seretse, mafome le likaroloana ka skrine ea sefe. Ebe, ka ho potoloha karolo ea mantlha ea bolo ea valve ea bolo ka 90°, phaephe e ka buloa ka botlalo kapa ea koaloa ka botlalo. Kahoo, ha e ntse e fihlella taolo ea phallo, sehare sea sefshoa le ho hloekisoa.

Mokhoa oa khokahano ea "khatello" o sebelisa lisebelisoa tse khethehileng ho tobetsa sebopeho se pakeng tsa phaephe le valve ka thata, ho etsa tiiso e tšepahalang le khokahano ea mechini, ho netefatsa ts'ebetso ea ho koala le botsitso ba sebopeho sa sistimi ea phaephe.

Mabapi le melemo ea ts'ebeliso, valve ea bolo ea filthara ea khatello e na le melemo e mengata: e amohela moralo o kopaneng, o kopanyang mesebetsi ea ho sefa le taolo ea phallo hore e be e le 'ngoe, e fokotsa li-fitting tsa liphaephe, le ho boloka sebaka le litšenyehelo tsa ho kenya; E ka sefa litšila ka katleho, ea sireletsa li-valve tse theohelang, lisebelisoa, lisebelisoa tsa terminal, jj. ho tloha ho thibaneng le ho tsofalang, le ho eketsa bophelo ba tsona ba ts'ebeletso. Valve ea bolo e bonolo ebile e boloka basebetsi ho sebetsa. Khokahano ea ho tiisa le ho kenya li potlakile, 'me mosebetsi oa tlhokomelo oa morao-rao o kang ho hloekisa skrine ea filthara le oona o bonolo haholo. E na le ts'ebetso e ntle ea ho tiisa le ho hanyetsa khatello ka nako e le' ngoe, e ke ke ea boloka ho lutla tlas'a khatello e phahameng ea ts'ebetso, 'me e loketse maemo a fapaneng a ts'ebetso ea mokelikeli o metsi.

Valve ea bolo ea sefe ea khatello, e nang le melemo ea eona e kopaneng ea "ho sefa + taolo", ts'ebetso le tlhokomelo e bonolo, le ts'ebetso e tšepahalang, e fetohile karolo ea bohlokoa e sebetsang le e theko e tlase litsamaisong tsa liphaephe, 'me e na le boemo ba bohlokoa masimong a mangata a ts'ebeliso ea sechaba le ea indasteri.

Jinbin Valve e ikhethile ka ho etsa li-valve ka lilemo tse 20. Ka boqapi ba theknoloji le netefatso ea boleng, re hlahisa li-valve tsa boleng bo holimo feela joalo ka li-valve tsa lirurubele tsa indasteri, li-valve tsa heke, li-valve tsa bolo tse welded, li-valve tsa poleiti tse foufetseng, li-valve tsa penstock tse kentsoeng leboteng, li-gate tsa beam, li-valve tsa moea, li-valve tsa Jet tse se nang letho, jj. Haeba u na le litlhoko tse amanang le tsona, ka kopo ikopanye le rona ka tlase 'me u tla fumana karabo nakong ea lihora tse 24!