I-Butt Weld Flanges (WN FLAngeS) ngokuvamile iyatholakala ngemiklamo emibili. I-High Hub Flange ne-Tapered Hub Flange, okwangaphambili kuyindlela ejwayelekile, esetshenziselwa ukuxhuma amapayipi. Intamo ye-butt Weld Flange ingahle ifakwe ngqo ekupheleni kwepayipi. I-Wn Flange inezinzuzo zokwakhiwa okulula, amandla aphezulu nokusebenza kahle kokubekwa uphawu. Futhi isetshenziswe kabanzi kumapayipi ahlukene wokucindezela.