I-flange enemisonto ikwabizwa ngokuba yi-screwed flange okanye i-screwed-on-flange.olu hlobo lunomsonto ongaphakathi kwi-flange bore ehambelana nomsonto oyindoda ohambelanayo kumbhobho okanye ukufaka.Olu hlobo lwe-flange lusetyenziswa apho i-welding ingekho inketho.I-flange enemisonto isetyenziswa kakhulu kwizicelo zoxinzelelo oluphantsi kunye nemibhobho emincinci (ukuya kuthi ga kwi-4″ yegama).