Letlapa la 2 la AWWA C207-18 le fana ka litlhaloso bakeng sa li-ringflange tsa Sehlopha sa D. AWWA C207-18 ke tekanyetso e phatlalalitsoeng ke American Water Works Association (AWWA) e hlalosang litekanyo le mamello ea liphaephe tsa lipeipi tsa tšepe tse sebelisoang lits'ebetsong tsa metsi.
Li-flange tsa Class D li etselitsoe ho sebelisoa ka pipe ea tšepe bakeng sa litšebeletso tse nang le likhatello tse itekanetseng ho isa ho tse phahameng. Li-flange tsena hangata li sebelisoa lits'ebetsong tsa metsi le metsi a litšila moo likhatello tsa ts'ebetso li leng holimo ho feta tsa li-flange tsa Sehlopha sa B.
Letlapa la 2 le totobatsa litekanyo tse fapaneng tsa li-flange tsa Sehlopha sa D joalo ka bophara ba selika-likoe sa bolt, palo ea masoba a bolt, bophara ba lesoba la bolt, botenya ba flange, bolelele ba hub, le litekanyo tse shebaneng. Litlhaloso tsena li etsa bonnete ba hore li-flange li etsoa ho latela maemo a hlokahalang le ho tiisa hore li tsamaisana hantle le ho tiisa ha li hokahantsoe le liphaephe.
Li-ringflange tsa sehlopha sa D hangata li entsoe ka tšepe ea carbon kapa tšepe e sa hloekang 'me li khona ho mamella likhatello tse phahameng tsa ts'ebetso ea tsamaiso ea metsi. Li-flange li etselitsoe ho fana ka khokahano e tšepahalang le e sa lutleng lipakeng tsa liphaephe, li-valve, le li-fittings lits'ebetsong tsa metsi.
Ka kakaretso, li-ringflange tsa Sehlopha sa D joalo ka ha ho boletsoe ho Lethathamo la 2 la AWWA C207-18 ke likarolo tsa bohlokoa lits'ebetsong tsa phepelo ea metsi, tse fanang ka khokahano e matla le e sireletsehileng bakeng sa meaho ea lipeipi libakeng tsa ho hloekisa metsi, litsing tsa metsi a litšila le marang-rang a phepelo ea metsi a masepala.
