Muva nje, ifektri ikhiqiza iqoqo lezinto ezizungezileivalvu yokugoqa, i-valve eyindilinga eyindilinga iyi-valve enendlela eyodwa, esetshenziswa kakhulu kubunjiniyela be-hydraulic nakweminye imikhakha.

Uma umnyango uvaliwe, iphaneli yomnyango igcinwa ivaliwe ngamandla adonsela phansi noma isisindo sayo esiphikisanayo. Uma amanzi egeleza esuka kolunye uhlangothi lomnyango eya kolunye, amandla amanzi asunduza ipuleti lomnyango lomnyango, okwenza lijikeleze umgodi womnyango futhi livuleke, ngaleyo ndlela livumela amanzi ukuba adlule kahle. Lapho ukugeleza kwamanzi kunendlela yokugeleza okuphambene, ngaphansi kwesenzo sokucindezela kwamanzi kanye namandla adonsela phansi komnyango ngokwawo, umnyango uzovala ngokuzenzakalelayo ukuvimbela ukugeleza okuphambene kwamanzi, ukuze kufezwe umsebenzi wokugeleza kwamanzi okuya ohlangothini olulodwa.

Isibonelo, ekuphumeni kwamanye amapayipi okukhipha amanzi, umnyango uyavulwa ngesikhathi sokukhipha amanzi okuvamile, futhi uma kukhona umkhuba wokuthulula amanzi ngaphandle ngemva kokukhipha amanzi, umnyango uzovalwa ukuze kuvinjelwe ukuthulula amanzi emuva.

Ohlelweni lokunisela, ivalvu eyindilinga ye-flap ingafakwa endaweni yokuphuma kwesiteshi sokunisela. Uma kudingeka ukunisela, amanzi aphuma emseleni bese esunduza umnyango wempompi uvuleke, okuvumela amanzi ukuthi ageleze aye ensimini. Ngemva kokunisela sekuqediwe, umnyango uvalwa ukuvimbela ukulahleka kwamanzi emseleni kanye nemfucumfucu yangaphandle engena emseleni.

Esiteshini sokumpompa amanzi edolobheni, lapho isiteshi sokumpompa siphuma amanzi, umnyango ojikelezayo uyavulwa, ukuze amanzi emvula akhishwe kahle emifuleni nasemachibini; Ngemva kokuphela kokukhipha amanzi, kungavimbela ngempumelelo amanzi echibi lomfula ukuba abuyele esiteshini sokumpompa amanzi, ukuze kugwenywe ukuthi isiteshi sokumpompa sigcwale amanzi. Ngaphezu kwalokho, endaweni yokuphuma komzila wokuchitheka kwamanye amachibi, uma kunesidingo sokuvimbela ukugeleza kwamanzi phansi, ivalvu ejikelezayo nayo ingadlala indima enhle ekulawuleni ukugeleza kwamanzi ngendlela eyodwa.

Amavalvu ezinhlelo zokusebenza ezifanayo afaka i-Non Return Valve. I-Jinbin Valve yenza ngezifiso uchungechunge lwamavalvu afana nalawaivalvu yesango, insimbi engagqwaliisango le-penstock, ivalvu yebhabhathane ephindwe kabili, i-air damper enobubanzi obukhulu, ivalvu yokuhlola amanzi, ivalvu yokukhipha ugesi, njll. Uma unezidingo ezihlobene, sicela ushiye umlayezo ngezansi. Uzothola impendulo zingakapheli amahora angama-24 futhi ubheke phambili ekusebenzeni nawe.