Letlapa la orifice valve ke diski ea tšepe e nang le lesoba le tebileng ho eona, eo, ha e kenngoa ka phala, e thibelang ho phalla ha mokelikeli le ho fokotsa khatello. Lipoleiti tsa li-valve tsa Orifice li bohlokoa liindastering tse sebetsanang le lihlahisoa tse nang le metsi le khase kaha li theha motheo oa tekanyo ea phallo ea mokelikeli ho methara ea phallo ea orifice.

Plate ea orifice valve e hlalosoa hore e sebelisoe ho ente ea mafura ea motlakase ea mofuta o sebelisetsoang ho qhala mafura ka har'a likamore tse tukang tsa enjene e tukang e ka hare. Letlapa la orifice valve ke la tlhophiso e chitja e nang le bokaholimo bo kaholimo ho noka le bokaholimo bo hanyetsanang le metsi a tlase le axis e bohareng. Axis ea tselana e 'ngoe le e 'ngoe e sekametse ho ea tlase ka lehlakoreng ho ea bohareng ba axis' me e fetela ka hare ho tloha holimo ho ea holimo ho ea tlase lipheletsong tsa tselana ea orifice e le hore tsela e 'ngoe le e 'ngoe ea orifice e lebise molatsoana oa mafura tlaase ho ea bohareng ba axis moo melapo e phallang teng. ho tloha liphasejeng tsa orifice ka hona, bonyane ho tla phephetsana ka mokhoa o itseng ho hlahisa paterone e kopaneng ea mafura a fafatsang.

Molemo oa eona ke hore karolo ea throttle ha e hloke ho lekanngoa, 'me tekanyo e nepahetse. Sebopeho se bonolo, se kopane, boholo bo nyane, boima bo bobebe. Mefuta e mengata ea lits'ebetso, ho kenyelletsa le maro a karolo e le 'ngoe le phallo tse ling tsa multiphase. Lipoleiti tsa li-valve tsa Orifice tsa li-apertures tse fapaneng li ka nkeloa sebaka ke phetoho ea sekhahla sa phallo, 'me li ka hlahlojoa le ho nkeloa sebaka inthaneteng.