insimbi ethambileivalvu yokugoqa eyindilinga

I-valve ye-ductile iron round flap iyi-valve enendlela eyodwa efakwe endaweni yokukhipha amanzi kanye nemisebenzi yokukhipha amanzi kanye nemisebenzi yokuhlanza indle. Isetshenziselwa ukugcwala noma ukuhlola indawo, futhi ingasetshenziswa nasezimbozweni ezahlukene ze-shaft. Ngokwesimo, kwakhiwa umnyango oyindilinga kanye nomnyango wokugoba oyisikwele. I-valve ye-ductile iron round flap ikakhulukazi yakhiwe ngomzimba we-valve, isembozo se-valve kanye nengxenye ye-hinge. Amandla ayo okuvula nokuvala avela ekucindezelweni kwamanzi futhi ayidingi ukusebenza ngesandla. Umfutho wamanzi ku-valve ye-flap mkhulu kunalowo ohlangothini lwangaphandle lwe-valve ye-flap, futhi iyavuleka. Ngaphandle kwalokho, iyavala futhi ifinyelele umphumela wokugcwala nokuma.