I-valve ye-butterfly yesignali yomlilo ngokuvamile inosayizi we-DN50-300 kanye nengcindezi ephansi kune-PN16.Isetshenziswa kakhulu kumakhemikhali wamalahle, i-petrochemical, irabha, iphepha, imithi kanye namanye amapayipi njengendlela yokuphambukisa kanye ne-confluence noma ithuluzi lokushintsha ukugeleza kwemidiya.