Works editing multi-stage pump is a centrifugal pump, but also rely on centrifugal force rotation of the impeller in acquiring, thereby materials. The scope of work to be gas density mechanical vacuum is drawn, thus gradually acquiring high vacuum. Multi-stage pump can be used in petroleum, chemical, machinery, mining, light industry, medicine and food, and many other industrial sectors. In many processes in industrial production, such as vacuum filtration, vacuum water, vacuum feeding, vacuum evaporation, vacuum concentration, vacuum resurgence and vacuum degassing, multi-stage pump is widely used. It can be exhausting flammable, explosive gases, but can also dust extraction, water gas, thus, increasing the water ring pump applications. 1.D type pump main parts are: water segment, the middle, the water segment, impeller, guide wings baffle, the water segment guide wings, shaft seal rings, balance disc, sleeve, end caps and bearing body. 2. The water segment, the middle guide vane baffle, the water segment guide wings, the water segment and end caps are made of cast iron, together form the pump studio. 3. The impeller is made of high quality cast iron, there are leaves, liquid axially unilateral entry, the front and rear wheel compression ranging MD155-30 * 9 wear multi-stage pump, there must be resistance to axial forces MD155-67 * 3 wear multi-stage pump, the axial force to bear on the balance disc, manufactured by the impeller static balance test. The shaft is made of high-quality carbon steel, in the middle with the impeller, with the key, the sleeve and the sleeve nut on the shaft. The coupling end of the shaft member is mounted, connected directly to the motor. 5. Seal bad made of cast iron, high-pressure water pumps to prevent water leakage back part, anchored in the inlet section and the middle was wearing parts, replace worn parts availability, respectively. 6. The balance ring is cast iron plow to wear multi-stage pump, secured to the water segment, which together constitute the balance disc balance device. 7. balance disc made of cast iron, mounted on the shaft, MD155-30 * 10, located between the axial force balance water segment and end cap. 8. The sleeve is made of cast iron, located filler. Room office, as fixed impeller and shaft-fitting protection for wearing parts, replace worn parts availability. 9. The bearings are single row radial ball bearings, the use of calcium-based lubricating grease. Wear multi-stage pump, MD155-67 * 4 wear multi-stage pump, bearing bodies (recognized by Anguo Shi Yuan Pump Co., Anguo City-yuan Pump Co., Ltd. (www.shiyuanbeng.com) is specialized in "IS centrifugal pumps, XA centrifugal pump, BA centrifugal, B-type centrifugal pump, double suction centrifugal pump "of the enterprise, the company adhering to the" honesty, hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Geng wheat.