The product is mainly used in the process of rough vacuum and large pumping quantity. It is mainly used forsucking air or other noncorrosive, insoluble gases which don’t contain solid granule, to obtain a certain vacuum in sealed vessels. The sucked gas may contain a small amount of liquid.
    This model pump is widely used in mechanical, pharmaceutical, food, and petrochemical, electronics and sugar refining industries. The gas is isothermal in the compression course, so danger does not easily occur when aspirating the explosive gases.
　Working vacuum range: - 0.03---0.08MPa