ductile ironvalavu yozungulira

The ductile iron round flap valve ndi valavu yanjira imodzi yomwe imayikidwa potuluka pa drainpipe kuti madzi azitha kugwira ntchito komanso kukhetsa madzi.Amagwiritsidwa ntchito kusefukira kapena kuyang'ana sing'anga, ndipo amathanso kugwiritsidwa ntchito pazovundikira shaft zosiyanasiyana.Malingana ndi mawonekedwe, chitseko chozungulira ndi chitseko chogwedeza cha square chimamangidwa.The ductile iron round flap valve imapangidwa makamaka ndi thupi la valavu, chivundikiro cha valve ndi chigawo cha hinge.Mphamvu yake yotsegula ndi yotseka imachokera ku kuthamanga kwa madzi ndipo sichifunikira ntchito yamanja.Kuthamanga kwa madzi mu valavu ya flap ndi yaikulu kuposa yomwe ili kunja kwa valavu, ndipo imatsegula.Apo ayi, imatseka ndikufika pakusefukira ndi kusiya zotsatira.