塑料排氣閥采cai用yong正zheng壓ya排pai氣qi和he負fu壓ya進jin氣qi設she計ji，具ju備bei排pai氣qi和he進jin氣qi功gong能neng。排pai氣qi閥fa在zai管guan道dao有you壓ya狀zhuang態tai下xia自zi動dong排pai放fang內nei部bu積ji聚ju的de少shao量liang空kong氣qi。負fu壓ya進jin氣qi即ji可ke在zai空kong管guan道dao充chong水shui時shi排pai放fang管guan道dao內nei的de空kong氣qi又you能neng在zai管guan道dao排pai空kong時shi自zi動dong進jin氣qi。尤you其qi是shi在zai水shui柱zhu分fen離li工gong況kuang下xia將jiang自zi動dong打da開kai，向xiang管guan道dao內nei進jin氣qi以yi消xiao除chu真zhen空kong。
掃一掃關注我們