Ambiri ntchitoflangemapangidwe ali ndi gasket yofewa yofinya pakati pa malo olimba kwambiri kuti apange chisindikizo chopanda kudontha. Zida zosiyanasiyana za gasket ndi mphira, ma elastomer (ma polima akasupe), ma polima ofewa omwe amaphimba chitsulo chosungunuka (mwachitsanzo, PTFE yokutidwa ndi chitsulo chosapanga dzimbiri), ndi zitsulo zofewa (mkuwa kapena aluminiyamu). Mapangidwe aliwonse a flange ali ndi zoyenerera.

Pokonzekera chipinda chatsopano cha vacuum, wopanga ayenera kufananiza zonseflangemapangidwe omwe alipo ndikusankha zomwe:

1.Zimagwirizana ndi vacuum zofunika
2.Kufanana ndi kutentha komwe kumafunikira
3.Sichimakhudzidwa ndi zida zoyambira kapena zopangidwa
4.Imafananitsa zokometsera za OEM ndi zida zomwe zidawonjezeredwa kudongosolo
5.Ndi yosavuta kugwiritsa ntchito mu dongosolo
6.Ili ndi ndalama zotsika kwambiri