Izinyathelo zokuqapha eziyinhloko zokufakwa kwe-flange yilezi ezilandelayo:

I-1) Ngaphambi kokufaka i-flange, indawo yokuvala uphawu kanye ne-gasket ye-flange kufanele ihlolwe futhi iqinisekiswe ukuze kuqinisekiswe ukuthi azikho iziphambeko ezithinta ukusebenza kokuvala, futhi i-grease evikelayo endaweni yokuvalwa kwe-flange kufanele isuswe;

2) Amabhawodi axhuma i-flange kufanele akwazi ukungena ngokukhululekile;

3) Isiqondiso sokufaka kanye nobude obuveziwe be-flange bolt kufanele buhambisane;

4) Qinisa i-nati ngesandla ukuze uqinisekise ukujikeleza okubushelelezi kusikulufu;

I-5) Ukufakwa kwe-flange akukwazi ukusonteka, futhi ukufana kwendawo yokuvala uphawu kufanele kuhlangabezane nezidingo zokucaciswa.