Bangaren da ke haɗa bututu zuwa bututu an haɗa shi da ƙarshen bututu.Akwai ramuka a cikin flange kuma kusoshi suna riƙe flange biyu tare.Gasket hatimi tsakanin flanges.Fitattun bututun da aka kaɗa suna nufin kayan aikin bututu tare daflanges(flanges ko gidajen abinci).Yana iya zama jifa, zare ko walda.Haɗin flange ya ƙunshi nau'i-nau'i na flanges, gasket da adadin kusoshi da kwayoyi.

Akwai iri ukuflange sealingsurface: jirgin sama sealing surface, dace da matsa lamba ba high, marasa guba kafofin watsa labarai lokuta;Concave da convex sealing surface, dace da dan kadan mafi girman lokatai;Tenon tsagi sealing surface, dace da flammable, fashewar, mai guba matsakaici da kuma high matsa lamba lokatai.Gasket wani nau'in zobe ne wanda zai iya haifar da nakasar filastik kuma yana da takamaiman ƙarfi.Yawancin gaskets an yanke su daga zanen da ba na ƙarfe ba, ko kuma an yi su a cikin masana'antu masu sana'a zuwa ƙayyadaddun girma.Kayayyakin sune zanen roba na asbestos, zanen asbestos, zanen polyethylene da sauransu.
Flangehaɗin zaren (haɗin waya) flanges da welded flanges da matsi flange.Low matsa lamba kananan diamita threaded flange dahannun riga flange, Babban matsa lamba da ƙananan matsa lamba manyan diamita suna welded flange, flange kauri da kuma haɗa aron kusa diamita da adadin daban-daban matsa lamba ne daban-daban.