Screw vacuum pump
Equal-distance screw vacuum pump, also known as dry screw vacuum pump, Is the use of gear transmission synchronous reverse rotation of the mutual meshing without contact with the equidistant left screw and right screw for high-speed rotation. The spiral groove is formed by the pump casing and the intermeshing spiral. Divided into a plurality of spaces and form a plurality of stages. The gas is transported in equal slots (cylindrically equal pitches). The two screws are finely balanced and supported by bearings. They are installed in the pump casing.There is a certain gap between the screw and the screw. It also happened between the screw and the pump. When the pumps are working, here is no friction between them.The operation is smooth and the noise is low. The cavity does not require lubricating oil. It can completely replace the oil-sealed mechanical pump and the water-sealed mechanical pump as the new generation of the main vacuum obtaining equipment.