First, the use of: 


 2X series vacuum pump for the two-level structure, its performance by the high level and low level of two parts, with its suction or vacuum device to connect the vacuum container, the container in running a large number of suction and discharge gas. When the equipment is a vacuum, the film will be high-level exhaust valve closed, high-level inhalation of the gas will be transferred to the second stage, and after the second stage suction and discharge, so that the vacuum equipment can get a certain vacuum. Technical parameters of the pump 6 × 10-2pa. According to the user, can be equipped with vacuum booster pump, pump the pump as before, due to the booster pump suction force to strengthen, before the pump continuous extraction, the device can get you a higher vacuum.