1. Walwalwar lebur: kawai sanye da Layer na waje, ba sa buƙatar haskaka murfi na ciki; Gabaɗaya da aka yi amfani da shi a cikin matsakaiciyar matsakaici da ƙananan bututu, namali matsa lamba na bututun bututun ya kamata ya zama ƙasa da 2.5psa. Akwai nau'ikan sealing guda uku na layin walda lebur, da nau'in santsi, concave da nau'in giyar, wanda aka yi amfani da shi a cikin m nau'in, da araha, mai inganci.
2. Butt welding:na ciki da waje yadudduka naflangeya kamata a welded. An yi amfani da shi gaba ɗaya don matsakaiciyar matsakaici da kuma ƙara matsa lamba, da kuma matsakaicin matsakaicin bututun mai tsakanin 0.25 da 2.5psa. Fuskokin sealing na Butting Welding flange shine concave-convex, shigarwa ya fi karuwa, don haka aikin aiki da farashin kayan aiki da kuma farashin taimako.
3. Welding Welding: gaba daya ana amfani dashi don bututu tare da matsin lamba maras mahimmanci fiye da ko daidai yake da 10.0pta da maras nauyi na diamita ƙasa da 40mm.
4. Sako-sako: An yi amfani da shi don matsin lamba ba ta da girma amma matsakaiciyar ita ce mafi yawan juriya, kayan da ba su da bakin karfe.

Ana amfani da irin wannan haɗin galibi don haɗin ɓoyayyiyar ƙwayar baƙin ƙarfe, bututun roba, bututun ƙarfe mara ƙarfe, da sauransu, haɗin kayan aikin da ba a amfani da flange baflangeHaɗi.
Shirin haɗin fawa shine kamar haka: Fatararriya da Hoton bututu ya kamata ya cika waɗannan buƙatun:
1. Cibiyar bututun daflangeyakamata ya kasance a kan matakin guda.
2. Tufafin sealing na Cibiyar PIPE da flange shine digiri 90 a tsaye.
3. Matsayinflangebibti a kan bututu ya kamata ya zama daidai.