I-Flanged Swing Check valve i-Swing Type Check Valve (i-valve engabuyiseli) ngokuxhumeka okuvuthayo. Kusetshenziselwa ukuvumela amanzi ukuba ageleze ngokuqondisa okukodwa kuphela, futhi i-disc iguqukela esihlalweni ukuze ivumele ukugeleza okudlulayo, noma ukujikisa esihlalweni ukuvimba ukugeleza okubuyela emuva.