Isitshixo sokhuseleko seValve, ekwabizwa ngokuba sisitshixo se-LOTO sevalve, sesinye sezitshixo zokhuseleko kwimizi-mveliso.Injongo kukuqinisekisa ukuba ivalve inokuvalwa ngokupheleleyo okanye ivulwe kwindawo ekhuselekileyo.Ukutshixwa kwevalve kunokuthintela ngempumelelo iingxaki zokhuseleko ezibangelwa kukungasebenzi kakuhle kwabasebenzi abafanelekileyo.Ukusetyenziswa kwesitshixo sokhuseleko lwevalve, ukuya kwinqanaba elikhulu lokuphucula ukhuseleko lwevalve, ngakumbi kumzi-mveliso weshishini kule ndawo, ukusetyenziswa kwe-LOTO yokutshixa ivalve kunokuqinisekisa imisebenzi eqhelekileyo yokuvelisa.