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Ivalvu yeBhola eSebenzayo yePPR kabini-1066-DN20
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Ivalvu yamanzi sisixhobo esiphambili esisetyenziswa kakhulu kwiinkqubo zemibhobho yamanzi, esisetyenziselwa ukulawula, ukulawula okanye ukucima ukuhamba kwamanzi. Sifanelekile kwiindawo ezahlukeneyo zokusetyenziswa kunye neemeko, kuquka ezoshishino, ezorhwebo, kunye nekhaya.
Iivalvu zebhola ze-PPR ezinezikrufu ezimbini zenziwe ngezinto ezikumgangatho ophezulu ze-PPR ezidityaniswe nentsimbi eyenziwe nge-A105 ukuze kwandiswe ukumelana nokugqwala kunye nokuqina kwevalvu kwaye kwandiswe ubomi benkonzo. Uyilo lwayo lolwakhiwo lulula kwaye lucacile, alulula nje kuphela ukusebenza imihla ngemihla, kodwa kulula nokuluqhaqha nokugcina, ngokucoca rhoqo kunye nokugcinwa, unokwandisa ubomi benkonzo yevalvu. Kwangaxeshanye, i-PTFE ikhethwa njengezinto zokuvala ivalvu ukuqinisekisa ukusebenza kakuhle kokutywina xa ivalvu ivaliwe kwaye ithintele ngokufanelekileyo ukuvuza kolwelo, ngaloo ndlela iqinisekisa ukusebenza okukhuselekileyo nokuzinzileyo kwenkqubo yepayipi. Kwiindawo ezinobushushu obuphezulu, izinto ze-PPR ezinokumelana nobushushu obuhle, ukuze ivalvu ikwazi ukuhlangabezana neemfuno zenkqubo yepayipi yamanzi ashushu, iqinisekise ukuba ivalvu isakwazi ukusebenza ngokuqhelekileyo kubushushu obuphezulu. Ukongeza, ukusebenza kakuhle kokulwa nokwaluphala kwezinto ze-PPR kwenza ivalvu ingabi lula ukuyiguqula okanye ukuyonakalisa ngexesha lokusetyenziswa ixesha elide, nto leyo enciphisa kakhulu iindleko zokutshintsha.
Ngokuphathelele ukufakelwa, ivalvu yebhola ephindwe kabini ye-PPR isebenzisa uqhagamshelo oluguquguqukayo oludibeneyo oluphilayo, yenza lula inkqubo yokufakela, kwaye ifanelekile kwiinkqubo ezahlukeneyo zemibhobho, inika abasebenzisi ukhetho oluninzi kunye nokulula. Uyilo lwesibambo esijikelezayo lwenza kube lula ukusebenza kwevalvu ngokugqithisileyo, kwaye umsebenzisi angayivula okanye ayivale ngokulula ivalvu ngokujika nje okuncinci. Iivalvu zethu zinoluhlu olubanzi lokusetyenziswa kwaye zinokulawula iintlobo ngeentlobo zemidiya yolwelo, efana namanzi abandayo, amanzi ashushu, amanzi okusela, njl.njl., ngoko ke zisetyenziswa kakhulu ekwakheni, ekunikezeni amanzi kunye nokutsalwa kwamanzi, ekucimeni umlilo nakwamanye amasimi, zibe yinxalenye ebalulekileyo kwinkqubo yemibhobho.
Ngokuphathelele ukufakelwa, ivalvu yebhola ephindwe kabini ye-PPR isebenzisa uqhagamshelo oluguquguqukayo oludibeneyo oluphilayo, yenza lula inkqubo yokufakela, kwaye ifanelekile kwiinkqubo ezahlukeneyo zemibhobho, inika abasebenzisi ukhetho oluninzi kunye nokulula. Uyilo lwesibambo esijikelezayo lwenza kube lula ukusebenza kwevalvu ngokugqithisileyo, kwaye umsebenzisi angayivula okanye ayivale ngokulula ivalvu ngokujika nje okuncinci. Iivalvu zethu zinoluhlu olubanzi lokusetyenziswa kwaye zinokulawula iintlobo ngeentlobo zemidiya yolwelo, efana namanzi abandayo, amanzi ashushu, amanzi okusela, njl.njl., ngoko ke zisetyenziswa kakhulu ekwakheni, ekunikezeni amanzi kunye nokutsalwa kwamanzi, ekucimeni umlilo nakwamanye amasimi, zibe yinxalenye ebalulekileyo kwinkqubo yemibhobho.
