Kumashishini anamhlanje kunye nazo zonke iintlobo zenkqubo yokuhanjiswa kwamanzi, amacandelo evalvu adlala indima ebalulekileyo. Bafana nabalindi abanyanisekileyo, abagcina ngokuzolileyo ukusebenza okuzinzile kwenkqubo, kodwa kwakhona banjengomqhubi obuthathaka, ulawulo oluchanekileyo lwentshukumo nganye yolwelo.

Ukusuka kwindawo yokujonga ulawulo lokuhamba, indibano yevalvu sisitshixo esiyimfuneko. Kwiinkqubo ezininzi zokuvelisa, ukuhamba kwamanzi kufuneka kulungiswe ngokuchanekileyo ngokweemfuno ezahlukeneyo zenkqubo. Kwimveliso yeekhemikhali, umzekelo, ukuhamba kwemathiriyeli ekrwada kufuneka kulawulwe ngokuchanekileyo ukuqinisekisa ukuba ukusabela kweekhemikhali kwenzeka ngesantya esimiselweyo kunye nobungakanani. Iivalvu zokulawula zingatshintsha ukuvulwa kwevalve, ukulungiswa kakuhle kwendawo enqamlezayo yolwelo, ukuze kufezekiswe ulawulo oluchanekileyo lokuhamba. Oku kufana nokulawula ngokuchanekileyo ubungakanani bokuhamba kwamanzi, ukuze ithontsi ngalinye lamanzi lisebenze ngexesha elifanelekileyo kunye nendawo efanelekileyo, ukuphepha iingozi zemveliso okanye iingxaki zomgangatho wemveliso ezibangelwa kukuhamba kakhulu okanye okuncinci kakhulu.

Amalungu evalvu angenakuphinda afumaneke ngakumbi xa kufikwa kulawulo loxinzelelo. Utshintsho kuxinzelelo njengoko ulwelo luhamba ngombhobho lunokuba nempembelelo enkulu kuyo yonke inkqubo. Ivalve yokhuseleko yindibano yevalve eyenzelwe ukukhusela inkqubo kuxinzelelo olugqithisileyo. Xa uxinzelelo lwenkqubo ludlula ixabiso elibekiweyo, i-valve yokhuseleko ivula ngokuzenzekelayo ukukhulula uxinzelelo olugqithiseleyo, ukukhusela iziphumo ezinzulu ezifana nokuqhekeka kombhobho kunye nokulimala kwezixhobo. Ngakolunye uhlangothi, iivalve zokunciphisa uxinzelelo, zinciphisa i-high-pressure fluids ukuya kwinqanaba loxinzelelo olufanelekileyo ukuhlangabezana neemfuno zezixhobo ezilandelayo okanye iinkqubo. Ngokudibeneyo, bagcina ibhalansi yoxinzelelo ngaphakathi kwenkqubo, njengokufakela i-intelligent pressure stabilizer kwinkqubo.

Ulawulo lokuhamba lukwangomnye wemisebenzi ebalulekileyo yamacandelo evalvu. Kuthungelwano lwemibhobho entsonkothileyo, ulwelo kufuneka lulandele indlela ethile. Iivalvu zokuhlola ziqinisekisa ukuba ulwelo lunokuqukuqela kwicala elinye kuphela, luthintele ukubuya umva ukuba kungenzeki. Ngokomzekelo, kwindlela yokubonelela ngamanzi kunye nenkqubo yokukhupha amanzi, i-valve yokukhangela inokuthintela ukungcola ukugeleza ngasemva, ukukhusela ukucoceka kwamanzi kunye nomsebenzi oqhelekileyo wenkqubo. Iivalve zeendlela ezintathu, iivalve ezine-four-way, njl.njl zingafuneka ukuba utshintshe indlela yokuhamba kwamanzi, ukwenzela ukuba ulwelo kumasebe ombhobho ahlukeneyo ngokulandelelana, ngenxa yokusebenza okuguquguqukayo kwenkqubo yonke inika isiqinisekiso.

Ngamafutshane, amacandelo e-valve ayinxalenye ephambili yothutho lwamanzi kunye nenkqubo yokulawula. Baqinisekisa ukusebenza okukhuselekileyo, okuzinzileyo kunye nokusebenza ngokufanelekileyo kwemveliso yoshishino, izibonelelo zikamasipala kunye nezinye iinkalo ezininzi ngolawulo olusebenzayo lokuhamba, uxinzelelo kunye nolwalathiso lokuhamba, into efunekayo ngokufanelekileyo kwinkalo yobunjineli bale mihla.