Trace dumama shine aikace-aikacen dumama wutar lantarki mai sarrafawa zuwa aikin bututu, tankuna, bawuloli ko kayan aiki don ko dai kula da zafinsa (ta maye gurbin zafi da aka ɓace ta hanyar rufi, wanda kuma ake magana da shi azaman kariyar sanyi) ko don shafar haɓakar zafinsa. .
Sama da Gefen Heater sanannen samfurin dumama masana'antu don amfani na tattalin arziki da a aikace.Yin amfani da matsugunin tasha mai jure ruwa, waɗannan dumama masana'antu sun zo da sifofi da girma da yawa don dacewa da girman tanki da ƙayyadaddun bayanai.
Masu dumama sama-da-gefe sun dace don dumama ruwa, mai, kaushi, gishiri da acid.Ana haɓaka juzu'in aikace-aikacen hita sama da gefe tare da kayan kwasfa na zaɓi, ƙimar kilowatt, shingen tasha da hanyoyin hawa.
An tsara masu dumama dumama sama da gefe don shigarwa a saman tanki tare da ɓangaren mai zafi da aka nutsar da kai tsaye tare da gefe ko a ƙasa.Wannan yana ba da sauƙi cire dumama da yalwar sarari aiki a cikin tanki.
A kan gefen nutsewar dumama an tsara musamman don sanya su a cikin babban ɓangaren tankuna.Abubuwan da za a yi zafi ko dai a ƙarƙashin injin tankin masana'antu ko kuma a gefe ɗaya, saboda haka sunan.Babban fa'idodin wannan hanya shine cewa an bar sarari mai yawa a cikin tanki don sauran ayyukan da za a yi kuma ana iya cire mai zafi cikin sauƙi lokacin da aka sami zafin da ake buƙata a cikin abun.Abubuwan dumama na injin da ke kan tsarin aikin gefe yawanci ana yin su ne daga karfe, jan ƙarfe, simintin ƙarfe da titanium.Za a iya samar da murfin fluoropolymer ko quartz don kariya.
An tsara na'urori masu zafi a kan gefen-gefe don shigarwa a saman tanki tare da yanki mai zafi da aka nutsar da kai tsaye tare da gefe ko a kasa.Suna ɗaukar sarari kaɗan, suna kawar da buƙatar shigar da tanki, ana cire su cikin sauƙi don sabis, kuma suna samar da isasshen sarari a cikin tanki.Abubuwan da aka tsara na al'ada daidai gwargwado suna rarraba zafi ta hanyar tuntuɓar kai tsaye a aikace-aikace da yawa, gami da maganin acid da alkali.