Isikhululo se-capping sesinye seendawo ezibalulekileyo zomshicileli, kwaye uxanduva lwaso oluphambili kukukhusela umlomo. Xa umatshini ungasetyenziswanga ixesha elide emva kokuyeka, umbhobho uya kuhlala kwisitaki se-inki, ngaloo ndlela ukuthintela ngokufanelekileyo ukuvala okubangelwa yi-inki condensation kumphezulu womlomo.

Isikhululo se-capping station kufuneka sitshintshwe rhoqo emva kokusetyenziswa ixesha elithile. Kungenjalo, iyakuchaphazela usebenziso oluqhelekileyo lomshicileli. Isikhululo se-capping sidibene ne-inki ixesha elide kwaye sinobomi benkonzo ethile. Ngokuhamba kwexesha, izakuguga, ibangele ukuba umlomo kunye nesikhululo sokuvala ziqhagamshelwe ngokukhululekileyo, kubangele ukuvuza komoya kunye nokuphazamisa inkqubo yoshicilelo lomshicileli.

Abashicileli bangoku baye baphucula isikhululo se-capping, ukwenzela ukuba ingaba umatshini umisiwe okanye usebenze, isikhululo se-capping sinokucoca ngokupheleleyo i-nozzle, engaqinisekisi kuphela ukukhutshwa okuphezulu okuchanekileyo komshicileli, kodwa kuthintela ukuvala kunye nokwandisa ubomi bayo benkonzo.