A ivalvu yesango elingavuki (i-NRS)uhlobo lwevalvu lapho isondo lesandla kanye nesiqu kuhlala endaweni eqondile. Isiqu siphenduka endaweni yaso. Isango elingaphakathi liya phezulu noma phansi. Lo mklamo wenza ivalvu ibe ncane. Kuyisinqumo esihle ezindaweni ezinesikhala esincane.
Indlela Esebenza Ngayo
Ngokungafani nevalvu yesango lesiqu ekhuphukayo, isiqu asihambi phezulu. Ivalvu ye-NRS inesiqu esinentambo. Isango linentambo yangaphakathi efanayo. Uma uphendula isondo lesandla, isiqu siyajikeleza. Lokhu kuhamba kokujikeleza kuhambisa isango. Isango liya phezulu ukuvula ivalvu. Liya phansi ukuze liyivale. Isiqu sihlala simile. Lena indlela elula nephumelelayo.
Izinzuzo Eziyinhloko
Amavalvu esango le-NRS anikeza izinzuzo eziningana. Asebenza kahle kakhulu esikhaleni. Isiqu asinwebi, okusindisa isikhala esiqondile. Lokhu kuyasiza ezindaweni ezingaphansi komhlaba noma eziqinile. Isiqu sivikelwe ekulimaleni. Sihlala ngaphakathi komzimba wevalvu. Lokhu kuvimbela ukuchayeka othulini noma emswakama. Ukufakwa kuyabiza kakhulu. Awudingi isikhala esengeziwe. Athembekile futhi ekuvalekeni okuqinile. Lokhu kuwenza abe mahle ezinhlelweni zamanzi nezomlilo.
Izicelo Ezijwayelekile
Amavalvu esango le-NRS asetshenziswa ezindaweni eziningi. Avame ukutholakala emigqeni yamanzi kamasipala. Lawa avame ukugqitshwa ngaphansi komhlaba. Asetshenziswa nasezinhlelweni zokuvikela umlilo. Amaphrojekthi okwakha imikhumbi nawolwandle ayawasebenzisa. Kanjalo namapayipi ezimboni anemikhawulo yokuphakama. Izindinganiso ze-AWWA C509/C515 zikhetha amavalvu esango le-NRS ukuze asetshenziswe ekugqitshweni.
Ukulinganiselwa
Ama-valve e-NRS anezinkinga ezithile. Imicu yesiqu ingaguga. Athintana noketshezi. Lokhu kungaholela ekugqwaleni. Kunzima ukwazi indawo yevalve. Awukwazi ukubona ukuthi ivuliwe noma ivaliwe. Akukho nkomba ebonakalayo. Lawa mavalve awawona awokugoqa. Angcono kakhulu ekusetshenzisweni okuvulekile noma okuvaliwe ngokuphelele. Awalawuli kahle ukugeleza.
Isikhathi sokuthunyelwe: Agasti-20-2025