D450-60*9，D450-60*10，长沙卧式多级离心泵，

　　，长沙东方工业泵厂优势产品，十七年坚持生产高效卧式多级离心泵，倾力奉献！

　　什么叫汽蚀余量？什么叫吸程？各自计量单位表示字母？

　　泵在工作时液体在叶轮的进口处因一定真空压力下会产生汽体，汽化的气泡在液体质点的撞击运动下，对叶轮等金属表面产生剥蚀，从而破坏叶轮等金属，此时真空压力叫汽化压力，汽蚀余量是指在泵吸入口处单位重量液体所具有的超过汽化压力的富余能量。l单位用米标注，用（npsh）r。吸程即为必需汽蚀余量δh:即泵允许吸液体的真空度，亦即泵允许的安装高度，单位用米。

　　吸程=标准大气压（10.33米）-汽蚀余量-安全量（0.5米）   

　　长沙东方工业泵厂卧式多级离心泵易损件:首级口环（首级密封环）、次级口环（次级密封环）、轴套、导叶套、平衡环、平衡盘、平衡套、填料、机械密封、叶轮。材质:耐磨铸铁，铸钢，球铁，不锈钢等

　　保质期:正常使用情况下，易损件保质半年，整机保质一年，配件供应充足。

　　D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，D450-60*9，D450-60*10，