Ivhavha ndiyo chikamu chekutonga mumagetsi ekufambisa, ane mabasa ekucheka-kubvisa, mutemo, diversion, kudzivirira countercurrent, pressure stabilization, diversion kana mafashama ekudzvinyirira.
Valvalve inoshandiswa mumvura yekudzora sisitimu, kubva kune yakapfava yekumisa vharafu kusvika kune yakanyanya kuoma otomatiki control system, mhando dzayo uye zvirevo zvakasiyana.Mavharuvhu anogona kushandiswa kudzora kuyerera kwemhando dzakasiyana dzemvura dzakadai semhepo, mvura, chiutsi, akasiyana siyana anoodza midhiya, madhaka, oiri, simbi yemvura uye radioactive midhiya.Zvinoenderana nenyaya yacho, iyo valve yakakamurwa kuita mavharuvhu esimbi, mavharuvhu esimbi, mavharuvhu esimbi asina tsvina (201,304,316, nezvimwewo), chromium molybdenum simbi mavharuvhu, chromium molybdenum vanadium simbi mavharuvhu, maviri-chikamu simbi mavharuvhu, epurasitiki mavharuvhu, asiri -standard customized mavharuvhu, etc.