I-Butterfly Valve, ekwabizwa ngokuba yiValve eFlaki, yiva yevali elawulayo enesakhiwo esilula, esinokusetyenziselwa ukutshintshela ulawulo lwe-Pipelimu ephantsi.I-Butterfly Valve ibhekisa kwi-valve enenqanaba lokuvala (i-valve disve okanye ipleyiti ye-vatve) yi-disc kwaye ijikeleza i-vall ye-vall ukuba ivuleke kwaye isondele.