Umuyoboro wa gazi ni ubwoko bwa valve, hamwe nigishushanyo kidasanzwe gishobora guhuza neza n’imikorere yimiyoboro ya gaze.Bikunze gukoreshwa muri sisitemu yo kohereza no kugenzura.
Ibikurikira nibisobanuro byibicuruzwa nibisabwa murwego rwa gaze ya ball ball