1, 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, 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, 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. Self-priming centrifugal pumps are positive displacement pumps, the main and passive gears and the pump body, left and right pump covers, which form two closed spaces. When the gear rotates, the volume of the oil inlet chamber keeps decoupling due to the meshing teeth From small to large. 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. This series of pumps mainly by: left and right pump cover, pump body, the main, passive gear shaft, bushings, oil seals and other components. Self-priming centrifugal pump use and installation: 1, self-priming centrifugal pump steering provisions: 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.
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