Masana'antar wutar lantarki don dandalin ruwa
Masu dumama dumama suna da amfani musamman a aikin ruwa da na soja tunda akwai lokuta da yawa a cikin jirgin da ke buƙatar samar da saurin zafi.Misali, ana buƙatar babban buƙatar ruwan zafi don duka tsaftacewa da sha.Tsaftar jiki yana da matukar muhimmanci don hana barkewar cututtuka a cikin jirgin ruwa kuma ruwan zafi shine hanya mafi arha don lalata kwayoyin halitta maras so.Kimanin zafin jiki na 77°C ya isa ya lalata kayan aikin jirgi kamar tasoshin fanko da tankuna.WATTCO™ yana ba da adadi mai yawa na dumama ruwa don samar da madaidaicin zafi don aikace-aikacen ruwa.
Za'a iya amfani da hitar ruwa mai ƙorafi don dumama zafin tankin ruwan sha.Ana yin wannan gabaɗaya ta hanyar shigar da hitar ruwa mai nutsewa cikin tafki na ruwa (Hoto na 1).Banda aikace-aikacen ruwa, ana iya amfani da dumama masu dumama don dumama ruwa daban-daban, misali, kamar tankin mai don jigilar jirgi.