working principle: 1, CYZ self-priming centrifugal pump is not suitable for conveying dirty oil, it should be set at the inlet pipe filter 2, no pump safety valve, it is recommended in the drain line, set the safety valve to ensure the safe operation of the system. 3, CYZ self-priming centrifugal pump steering requirements: from the pump to the motor, the direction of rotation is counterclockwise. 4, the unit should be installed on the level of cement, with anchor bolts. 5, CYZ self-priming centrifugal pump installation height, not to exceed the allowable suction height 6, the right coupling should be coaxial, after the installation is complete, turn the coupling to confirm the smooth operation of negative pressure phenomenon, before entering the operation. CYZ self-priming centrifugal pump is a positive displacement pump. The main and passive gears and the pump body, left and right pump covers are composed of two closed spaces. When the gear rotates, the volume of the oil inlet chamber is continuously disconnected due to the meshing teeth, From small to big. The formation of a vacuum, the liquid inhalation, a tooth valley to the oil chamber, and the oil chamber volume, due to the meshing teeth continue to mesh and become smaller, the oil is compressed and discharged, so as to achieve the purpose of conveying oil. Structure This series of pumps mainly consists of: left and right pump cover, pump body, the main, passive gear shaft, sleeve, oil seal and other components. CYZ self-priming centrifugal pump use and installation: 1, the steering provisions: look from the pump to the motor, the direction of rotation is counterclockwise. 2, the pump is not suitable for conveying dirty oil, it should be set at the inlet pipe filter. 3, no pump safety valve, it is recommended in the drain line, set safety valve to ensure the safe operation of the system. 4, the right coupling should be coaxial, after installation is complete, turn the coupling to confirm the smooth operation without negative pressure phenomenon before entering the operation. 5, the unit should be installed on the level of cement, with anchor bolts. 6, the installation of the pump height, not to exceed the allowable suction height.