Apo mvura inorova impeller inotenderera, simba remhepo rinotamirwa kumvura, kumanikidzira mvura kunze (centrifugal force).
Nheyo inobata zvimwe zvikamu, uye chitubu chinochengeta bhanhire rakadhonzwa zvakasimba.Iyo pulley ndiyo inofambisa kufamba kwebhanhire.
Oiri level masensa anoshandisa magineti reed switch, ayo akavharirwa hermitically musimbi isina tsvina kana hunde repurasitiki, kuyera mazinga emafuta uye otomatiki kubatidza kana kudzima pombi dzemafuta.