Twin Screw Pump as a positive displacement pump, the suction chamber of the pump should be closely separated from the discharge chamber. Therefore, the clearance between the pump body and the outer surface of the screw and between the screw and the screw should be as small as possible. At the same time, screw and pump body, screw and screw form mutual seal cavity to ensure airtight. Otherwise, there may be liquid backflow back from the gap.
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Anhui Daily reported on May 20 that after more than two years of efforts, the Anhui International Automobile City auto and motorcycle market was completed on May 18 and an annual sales volume of RMB 2 billion was formed. This market is a key investment project in Hefei City. It covers the repairs, accessories and services of automobiles and motorcycles. It is the largest and most functional market in the province. The first-phase completion of the motorcycle market was completed in the past year, and more than 180 companies have entered the company, achieving sales revenue of more than one billion yuan. The second phase of the auto parts market has been introduced more than 90 companies, including many famous foreign companies.