Mai hana kwarara baya, TWS Valve
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Mai hana guduwar baya, TWS Valve
Kara karantawaMai hana dawo da baya da aka fi amfani da shi don samar da ruwa daga rukunin birane zuwa najasa na gama gari yana iyakance matsin bututun ta yadda ruwan zai iya zama ta hanya ɗaya kawai.Ayyukansa shine hana koma baya na matsakaicin bututun bututu ko kowane yanayin siphon ya koma baya, don gujewa gurɓacewar koma baya.