switjing aksen blong dabol-akting silinda i draevem tru long ea sos, inkludim ventilasen i stap long, of mo posisen i stap long ples blong hem;
Singel-acting swit eksen em i open eksen i save kamap long win, na klostu eksen em spring riten: Singel-akting: nomol open taip(N/O) na nomol klos taip(N/C){2} open taip bilong Nomal: ventileisen i go aut, op; Nomal klos taip: ventilated open, klostu.
