Isembozo somgodi sifakwe ngaphezulu kwetanki likawoyela。Kungukungena kwangaphakathi kokulayisha, ukubheka ukuvuselwa komphunga nokugcinwa kwamathangi。Ingavikela i-tanker ezimeni eziphuthumayo。
Imvamisa, i-valve yokuphefumula iyavalwa。Kodwa-ke, lapho ulayisha futhi uthule uwoyela wangaphandle ushintsho, nengcindezi yetanki lizoshintsha njengokucindezela komoya nokucindezela komshini。I-valve yokuphefumula ingavuleka ngokuzenzekelayo ekucindezelweni okuthile komoya nokucindezela komshini ukwenza ingcindezi yethangi ibe sesimweni esijwayelekile。乌玛kunesimo esiphuthumayo njeng -roll over situation, izovala ngokuzenzakalela futhi ingagwema nokuqhuma kwamathangi lapho kusha。Njengoba i-valve ephuthumayo ephuthumayo izovuleka ngokuzenzekelayo lapho ingcindezi yangaphakathi yamaloli ethangi inyuka iye ebangeni elithile。