One, LQSJ type soda series range of applications and features Roots vacuum unit: LQSJ soda series Roots vacuum unit and easy to use, can be used for single-stage water jet pumps, soda can also be used in tandem, as no steam do Luo Mainz - Water jet series. It has the characteristics of high vacuum, pumping volume, ultimate vacuum up to 20Pa. Suitable for light industry, food, pharmaceutical, oil and pesticide industries. Two, LQSJ soda tandem type Roots vacuum pump units operating principle: water jet pump working principle is to use a fluid energy transfer and generates a vacuum, steam ejector using steam pressure at supersonic venturi nozzle through which the vacuum producing Roots pump working principle is to use a pair of constant speed rotation of the rotor, resulting in the expansion compression generated vacuum, via a series of three to achieve the above-described state of the suction capacity, high vacuum. Three, LLQSJ soda series Roots vacuum unit Model Description: LQSJ-160A-150 L: Roots pump QS: soda series J: Unit 160A: water jet pump suction capacity 160m3 / h 150: Roots pump exhaust volume 150L / S four, LQSJ soda series Roots vacuum unit of material: a water jet pump is cast iron, cast iron steam pump. 2, the water jet pump as polypropylene, steam pump steel liner graphite. 3, water, gas chambers, centrifugal reinforced polypropylene or steel. 4, for the Roots pump iron Kai Qing Pump Manufacturing Co., Ltd. is a Shanghai 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.