Ithebula lesi-5 ku-AWWA C207-18 lihlinzeka ngezicaciso ze-Class E ring flange. I-AWWA C207-18 iyindinganiso eshicilelwe yi-American Water Works Association (AWWA) ebeka imihlahlandlela yamapayipi ensimbi asetshenziswa kumasistimu okusebenza kwamanzi.
I-Class E ring flange yakhelwe ukusetshenziswa ezinhlelweni zokusabalalisa amanzi ezinezidingo zokucindezela okuphezulu. Lawa ma-flange ngokuvamile asetshenziswa ezindaweni zokuhlanza amanzi, izinsiza zamanzi angcolile, kanye namanethiwekhi okuphakelwa kwamanzi kamasipala lapho izingcindezi zokusebenza zidingeka kakhulu.
Ithebula lesi-5 licacisa izilinganiso ezihlukahlukene zama-flange wendandatho Yekilasi E, okuhlanganisa ububanzi bendilinga yebhawudo, inombolo yezimbobo zebhawodi, ububanzi bembobo yebhawodi, ubukhulu be-flange, ubude behabhu, nobukhulu obubheke. Lezi zici ziqinisekisa ukuthi ama-flange akhiqizwa ngokwezindinganiso ezidingekayo futhi aqinisekisa ukuqondanisa okufanele nokuvala lapho exhunywe kumapayipi amapayipi.
Izindandatho ze-Class E zivame ukukhiqizwa ngensimbi ye-carbon noma insimbi engagqwali ukuze kuqinisekiswe ukuqina nokumelana nokugqwala ekusetshenzisweni kwamanzi. Ama-flange aklanyelwe ukuhlinzeka ngokuxhumeka okuthembekile nokungavuziyo phakathi kwamapayipi, ama-valve, nokufakwa kwezinhlelo zokusebenza zamanzi ezinomfutho ophezulu.
Kafushane, izindandatho ze-Class E njengoba kuchazwe kuThebula lesi-5 le-AWWA C207-18 ziyizingxenye ezibalulekile ezinhlelweni zokusabalalisa amanzi, ezihlinzeka ngoxhumano oluqinile noluvikelekile lwengqalasizinda yamapayipi ezindaweni zokuhlanza amanzi, izikhungo zamanzi angcolile, kanye namanethiwekhi okuphakelwa kwamanzi kamasipala, ikakhulukazi izinhlelo zokusebenza lapho izingcindezi eziphezulu zikhona.
