该泵是以循环水为工作流体，采用射流技术产生负压而设计的一种新型真空抽气泵，它不仅是一种真空抽气装置，同时还能向反应装置中提供循环冷却水，该泵具有不用油、无污染、耐腐蚀、噪音低、方便灵活等特点。材料采用防腐机芯和不锈钢机芯两种型号；立式电机，泵体直接潜入水下，不需加引水，一机多用。(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。　ThisPumpisofjetpumpwithcirculatingwaterasworkingliquidanddesignedbynegativepressureproducedfromsprayingliqunid.Itisarnewvacuumairpump,whichcanprovidewithcirculatingcoolingwatertothereactionofdeviceatsametime.Thepumphastheadvantageslfunuseoil,non-pollrtioncorrosionresisting,lowernoiseandeasymovement,onemachinewithmulti-usage.(1)Onemachinewithmulti-pipeoperation,Wherethreesetsofairexhaustorarefixedandusedindependentlyorparallelly.(2)Lowernoise,Convenientmovement.(3)Non-pollution,Thepumpbodyismadeofpolyvinylchloride(pvc)plastics,andtheontercoverisofcold-rolledsteelplatewithbackingfinish.