The pump use circulating water as working liquid, negative pressure produced by jet technology and a design of new type of vacuum pumping air pump. It is not only a vacuum suction device, and also to provide cooling circulating water to the reactor.

This pump is widely used for evaporation, distillation, crystal filter, decompression sublimation and other operation, it is the ideal instrument for major and medium colleges and universities in environmental protection, biochemistry, chemical industry and scientific research.