Matsakaicin bututun ƙarfe yana ƙayyade sifar bututun ƙarfe, kusurwar feshin, kwararar feshin da tasirin fesawa. Yawancin bututun ƙarfes madauwari ne, saboda siffar madauwari ta fi sauƙi a ƙera fiye da sifa ta musamman, kuma ƙirar feshin galibin bututun ƙarfe shine Zagaye, kamar cikakken bututun mazugi, ramin mazugi, babban matsin lamba na bututun ƙarfe, ƙaramin matsin lamba na bututun ƙarfe, madaidaicin bututun ƙarfe, da dai sauransu, siffar feshin ko dai cylindrical ko conical.

Don bututun ƙarfe tare da wasu sifofin fesawa, galibi muna ɗaukar hanyar yin bututun bututun zuwa cikin da’irar, sannan canza fasalin bututun ta wasu hanyoyin waje, ta haka muke canza fasalin feshin. Misali, bututun fan ɗin lebur yana cikin rami mai siffa kuma V An tsage tsagi biyu don canza ramin zuwa siffar zaitun. Hakanan gaskiya ne ga bututun ƙarfe.

Saboda fasahar sarrafawa, ramukan da kowane kayan juyawa ke sarrafa su madauwari madauwari ne, kuma daidaitaccen sarrafa shi ya fi sarrafawa fiye da sauran sifofi. Don haka, za mu yi amfani da ramukan madauwari azaman ramukan tunani don nozzles na gaba ɗaya, sannan mu yi amfani da ramukan madauwari a cikin ramukan madauwari. Dangane da ƙara yankan waje, ta hakan yana canza fasalin feshin bututun.

Sai dai idan kuna da buƙatun rami mai siffa ta musamman, za mu ƙera bututun bututun ƙarfe gwargwadon yanayin amfanin ku. Da fatan za a iya tuntuɓar mu.