Foshan arrest Wei Hydraulic Machinery Manufacturing Co., Ltd., Product Properties and Uses: YB1 series pressure vane pump YB pump improved products suitable for medium-pressure hydraulic system. According to the needs of the pump can be reversed, and the whole series with a single pump, double pump a total of 135 different specifications, widely used in a variety of machine tools, automatic lines, light industrial machinery, transportation machinery, agricultural machinery and all kinds of pressure machinery and other hydraulic systems. Second, the rotation of the working principle of the vane pump rotor of the vane pump, the blades in the under the action of centrifugal force and the pressure oil, the tip close to the inner surface of the stator. So that the two blades and the inner surface of the rotor and the stator, a working volume, first Ascending Suction and then descending row of oil, the blade rotation, the complete two Suction and discharge of oil.