Kugenzura hydrants ya valve nibintu byingenzi muri sisitemu nyinshi zinganda, cyane cyane mubikorwa byo kugenzura amazi. Izi hydrants zagenewe kwemerera amazi gutemba mucyerekezo kimwe mugihe abibuza gusubira inyuma, bityo kwemeza imikorere ikwiye ya sisitemu yose. Gusobanukirwa ubukanishi ninyungu za cheque valve hydrants birashobora gufasha inganda kuzamura ibikorwa byabo na mainta