Flangekusankha kuyenera kukwaniritsa zofunikira zapangidwe. Pamene mapangidwe safuna, ayenera mogwirizana ndi dongosolo la kuthamanga kwambiri ntchito, mkulu ntchito kutentha, sing'anga ntchito,flangekalasi yazinthu ndi zinthu zina kusankha kokwanira kwa mawonekedwe oyenera ndi mafotokozedwe a flange.
Flangeiyenera kuyang'aniridwa musanakhazikitsidwe, pamwamba payenera kukhala yosalala, sipadzakhala mabowo a mchenga, ming'alu, mawanga, burrs ndi zolakwika zina zomwe zimachepetsa mphamvu ya flange, ndipo sipadzakhala zipsera zolowera ndi zolakwika zina zomwe zimakhudza kusindikiza pa kusindikiza pamwamba.
Posonkhanitsaflangesndi mapaipi, gwiritsani ntchito wolamulira wa flange kuti muwone mayendedwe aflanges. Pamene aflangekugwirizana kufanana kupatuka kukula sikunatchulidwe mu kapangidwe, sayenera kukhala wamkulu kuposa 1, 5% ya flange awiri, ndipo osapitirira 2mm, pamene flanges awiri si kufanana ndi kupitirira zofunika za specifications ayenera kuwongoledwa, musagwiritse ntchito ma gaskets angapo kukonza.
Pamene aflangendi welded ku payipi, ayenera kuwotcherera mbali zonse malinga ndi muyezo, ndi kutalika kwa phazi kuwotcherera kuyenera kukwaniritsa zofunika.