Valvụ nchekwa bụ ngwaọrụ nchekwa nke na-eme ka iweghachi nrụgide mgbe nrụgide dị n'ime ụgbọ elu nchekwa mmanụ na-egbu egbu na-abawanye. A na-egbu egbu mmanụ ụgbọ mmiri mmanụ ọkụ ga-eji valves nchekwa mmiri.
