Ngemuva kokusebenza okushisayo, la mafulethi akhiwe kufanele aphonswe emazingeni okushisa athile ngaphambi kokuba aphethwe ukushisa. Ngokuvamile, ukwelashwa okushisa okusetshenziswa ku-ANSI B16.5 Ama-Flanges e-Carbon Carbon anciphisa ama-Flanges kufanele kwenziwe ngokuya ngezidingo ezithile, njengokushisa kokwelashwa okushisa, okupholile okuphakathi nendawo, nokucisha.