One, F3LSJ type III Roots water jet vacuum unit Features: F3LSJ type III Roots water jet vacuum unit is three plus water jet vacuum pumps vacuum unit composition, with pumping speed faster, higher vacuum characteristics, limit Vacuum up 2Pa, coupled with electronic control box, vacuum pumps can be automatically made. Two, F3LSJ Roots-type three water jet vacuum unit of material: ordinary type: water jet pumps, centrifugal pumps, vacuum pumps for cast iron pipe fittings, carbon steel tank cycle. Corrosion type: 1, medium and small models of water jet pump, circulating water tank, pipe fittings for the RPP, RPP or fluorine plastic centrifugal pump, Roots pump iron. 2, the larger sizes can be coated with poly water jet pump inside steel Chlorotrifluoroethylene, circulating water tank, pipe fittings for the RPP, centrifugal pumps, vacuum pumps for cast iron. 3, large models of water jet pumps, centrifugal pumps, circulating water tank, pipe fittings for steel, cast iron Roots pump. Kai Qing Shanghai Pump Manufacturing Co., Ltd. is a company specializing in research, manufacture, production and sale of pumps technology companies. The main products are: vacuum pump, vacuum unit series, series water ring vacuum pumps, rotary vane vacuum pump series, Diaphragm series, submersible mixer series, the most professional vacuum pump manufacturer Shanghai direct selling, all three bags of products, and look forward to you cooperation, please call the free service hotline: 4000-889-202.