Mkpọchi nchekwa valvụ, nke a makwaara dị ka mkpọchi valvụ LOTO, bụ otu n'ime mkpọchi nchekwa ụlọ ọrụ.Ebumnuche bụ iji hụ na enwere ike mechie valvụ ahụ kpamkpam ma ọ bụ meghee ya na ọnọdụ nchekwa.Mkpọchi nke valvụ ahụ nwere ike igbochi nsogbu nchekwa nke ọma site na mmejọ nke ndị ọrụ dị mkpa.Ojiji nke mkpọchi nchekwa valvụ, ruo n'ókè dị ukwuu iji melite nchekwa nke valvụ, karịsịa na ụlọ ọrụ ụlọ ọrụ ebe a, iji LOTO valve mkpọchi nwere ike hụ na ọrụ mmepụta ihe na-emekarị.