Mokhoa o le mong oa ho hlahloba Valve bakeng sa Tšebeliso ea Bongaka
Sesepa sa ho hlahloba ka tsela e le 'ngoe, se tsejoang hape e le sephahla se sa khutleng kapa se hlahlobang, ke sesebelisoa se sebelisetsoang ho lumella ho phalla ha metsi ka tsela e le' ngoe feela, ho thibela ho khutlela morao kapa ho khutlela morao. E atisa ho sebelisoa mefuteng e mengata ea likopo, ho kenyelletsa mekhoa ea lipeipi, li-compressor tsa moea, lipompo le lisebelisoa tse hlokang ho laola metsi a unidirectional.Mosebetsi o ka sehloohong oa mokhoa o le mong oa ho hlahloba valve ke ho lumella mokelikeli hore o phalle ka bolokolohi ka tsela e le 'ngoe ha o ntse o thibela hore o se ke oa phalla morao ka tsela e fapaneng. E na le mochine oa li-valve o bulang ha mokelikeli o phalla ka tsela e lakatsehang, 'me o koala ho thibela ho phalla ha ho e-na le mokokotlo kapa ho phalla ho khutlela morao.Ho na le mefuta e fapaneng ea li-valve tsa ho hlahloba ka tsela e le' ngoe, ho akarelletsa le li-valve tsa ho hlahloba li-ball, swing check valves, diaphragm check valves, le li-valve tsa ho hlahloba piston. Mofuta o mong le o mong o sebetsa ho itšetlehile ka mekhoa e fapaneng empa o sebeletsa morero o tšoanang oa ho lumella ho phalla ka tsela e le 'ngoe le ho thibela ho phalla ka tsela e fapaneng.Li-valve tsa ho hlahloba ka tsela e le' ngoe hangata li etselitsoe hore li be bobebe, li kopane le ho li kenya habonolo. Li ka etsoa ka mefuta e fapaneng ea lisebelisoa tse kang polasetiki, koporo, tšepe e sa hloekang, kapa tšepe e entsoeng ka tšepe, ho itšetlehile ka litlhoko tsa kopo le mofuta oa mokelikeli o laoloang. Ke habohlokoa ho khetha boholo bo nepahetseng le mofuta oa valve ea ho hlahloba ho latela lebelo la phallo, khatello, mocheso, le ho lumellana le mokelikeli o laoloang.Ka kakaretso, li-valve tsa ho hlahloba ka tsela e le 'ngoe ke likarolo tsa bohlokoa mekhoeng eo ho thibela ho khutla ho hlokahalang. Li etsa bonnete ba hore metsi a ea ka lehlakoreng le leng, a ntlafatsa polokeho, 'me a sireletsa lisebelisoa ho tsoa tšenyo e bakiloeng ke phallo e khutlang.