Ilokhi yokuphepha ye-valve, eyaziwa nangokuthi i-LOTO valve lock, ingenye yezingidi zokuphepha zezimboni.Inhloso ukuqinisekisa ukuthi i-valve ingavalwa ngokuphelele noma ivuleke esimweni esiphephile.Ukukhiywa kwe-valve kungavimbela ngempumelelo izinkinga zokuphepha ezibangelwa ukungasebenzi kahle kwabasebenzi abafanelekile.Ukusetshenziswa kokuvala ukuphepha kwe-valve, ngezinga elikhulu ukuthuthukisa ukuphepha kwe-valve, ikakhulukazi efektri yebhizinisi kule ndawo, ukusetshenziswa kwe-LOTO valve lock kungaqinisekisa imisebenzi evamile yokukhiqiza.