（1）一机多管作业，本机装有三套抽气头，可单独或并联使用。
（2）噪音小，移动方便。
（3）无污染，本机箱体为聚氯乙稀塑料，外壳采用不锈钢和冷板静电喷塑壳两种。

（3）主机泵体，叶轮分水器，为不锈钢材质。　This Pump is of jet pump with circulating water asworking liquid and designed by negative pressure produced from spraying liqunid .It is ar new vacuumair pump, which can provide with circulating cooling water to the reaction of device at same time. The pump has the advantages lf unuse oil,non-pollrtion corrosion resisting, lower noise and easy movement, one machine with multi-usage.
（1）One machine with multi-pipe operation, Where three sets of air exhaustor are fixed and used independently or parallelly.
（2）Lower noise,Convenient movement.
（3）Non-pollution,The pump body is made of polyvinyl chloride （pvc）plastics,and the onter cover is of cold-rolled steel plate with backing finish.