I-flange yobuso obuphakanyisiwe(RF) kulula ukuyibona njengoba indawo ye-gasket ibekwe ngaphezu komugqa wokubhowula wei-flange.
Ubuso obuphakanyisiwei-flangeiyahambisana nohlu olubanzi lwama-flange gaskets, asukela ezinhlotsheni eziyisicaba kuye kwezingama-metallic nezensimbi (njengesibonelo, ama-gasket afakwe amabhantshi nama-spiral ulcer gaskets), kungaba indandatho noma ubuso obugcwele.
Ububanzi obuyinhloko bomklamo we-flange wobuso obuphakanyisiwe ukugxilisa ukucindezela kwama-flange amabili okukhwelana endaweni encane futhi kwandise amandla ophawu.
Ukuphakama kobuso obuphakanyisiwe kuncike ku-i-flangeisilinganiso sokucindezela njengoba sichazwe incazelo ye-ASME B16.5 (kumakilasi okucindezela 150 no-300, ukuphakama kungu-1.6 mm noma 1/16 intshi, kumakilasi asuka ku-400 kuya ku-2500, ukuphakama kobuso obuphakanyisiwe cishe ku-6.4 mm, noma 1/4 intshi).
Ukuqedwa kwe-flange okuvame kakhulu kwe-ASME B16.5 RF flanges yi-125 kuya ku-250 micron Ra (3 kuya ku-6 micron Ra). Ubuso obuphakanyisiwe, ngokuya nge-ASME B16.5, buwubuso obuzenzakalelayo be-flange kubakhiqizi (lokhu kusho ukuthi umthengi uzocacisa ngohlelo uma kudingeka obunye ubuso be-flange, njengobuso obuyisicaba noma indandatho ehlangene).
Ama-flange obuso aphakanyisiwe awuhlobo oluthengiswa kakhulu lwe-flange, okungenani ukusetshenziswa kwe-petrochemical.