Ku-AWWA C207-07, ama-flange ehabhu le-Class E awuhlobo oluthile lwama-flange aklanyelwe ukusetshenziswa ezinhlelweni zokuphakelwa kwamanzi. I-American Water Works Association (AWWA) isungule izindinganiso zamapayipi ensimbi ama-flange asetshenziswa ezinhlelweni ze-waterworks, futhi ama-flange e-Class E hub ayingxenye yaleli zinga.
Ama-flange ehabhu le-Class E adizayinelwe izinhlelo zokusebenza ezinengcindezi ephezulu yokusebenza uma kuqhathaniswa namaflange Ekilasi D. Lawa ma-flange ngokuvamile asetshenziswa ezindaweni zokuhlanza amanzi, izinsiza zamanzi angcolile, kanye namanethiwekhi okuphakelwa kwamanzi kamasipala lapho izidingo zengcindezi ziqine kakhulu.
Ku-AWWA C207-07, ama-hub flange Ekilasi E ahlukaniswa ngokusekelwe ezilinganisweni zawo zengcindezi futhi akhiqizwa ukuze ahlangabezane nezidingo ezithile zokuklama. Izinga licacisa ubukhulu obuhlukahlukene obufana nobubanzi be-flange, ububanzi bembobo yebhawodi, ububanzi bendilinga yebhawodi, ubukhulu behabhu, ubukhulu obubhekekayo, kanye nokucaciswa kogqinsi kwamaflange Ekilasi E.
Ama-flange wehabhu le-Class E avamise ukwakhiwa ngezinto ezifana ne-carbon steel noma insimbi engagqwali ukuze kuqinisekiswe ukuqina nokumelana nokugqwala ekusetshenzisweni kwamanzi. Ihabhu eliphakanyisiwe phakathi nendawo ye-flange linikeza amandla engeziwe kanye nokwesekwa lapho uxhumeka kumapayipi noma ama-valve.
Ukucaciswa okuvezwe ku-AWWA C207-07 Ithebula lesi-4 lama-hub flange e-Class E aqinisekisa ukuthi ama-flange ahlangabezana nezidingo eziqinile zezinhlelo zokusebenza zamanzi futhi ahlinzeke ngoxhumano oluthembekile, olungavuziyo ezinhlelweni zokusabalalisa amanzi ezinomfutho ophezulu.
Kafushane, ama-hub flange e-Class E achazwe ku-AWWA C207-07 Ithebula lesi-4 adlala indima ebalulekile ezinhlelweni zokuphakelwa kwamanzi, ehlinzeka ngoxhumano oluphephile nolunokwethenjelwa lwengqalasizinda yamapayipi ezindaweni zokuhlanza amanzi, izindawo zokuhlanza amanzi angcolile, kanye namanethiwekhi okusabalalisa amanzi kamasipala.
