Mau oyamba
▪ Mndandanda wa anti-kusakaniza valve ukhoza kuteteza bwino kusakaniza pakati pa mitundu iwiri ya sing'anga yosasakaniza.Vavu ikatsekedwa, padzakhala kusindikiza kawiri pakati pa mapaipi apamwamba ndi apansi, kuti ateteze bwino mitundu iwiri ya media kuti isasakanizidwe pakati pa mapaipi awiriwo.Ngati zida zosindikizira zidawonongeka, kutayikira kumatha kutulutsidwa kudzera muchipinda chotayira cha valve, chomwe ndi chosavuta kuwona ndikusinthira magawo osindikizira munthawi yake.Pali mitundu yosiyanasiyana yamitundu ndi mapangidwe omwe amapezeka pamndandanda wotere.