General characteristics of centrifugal pumps

The general characteristics of centrifugal pumps (1) Water is sucked in along the axial direction of the impeller along the direction of flow of the centrifugal pump, and flows out perpendicular to the axial direction, that is, the direction of water flow in and out is 90° with each other. (2) Since the centrifugal pump forms a vacuum suction by the impeller inlet, it is necessary to fill the pump and suction pipe with water before starting, or use a vacuum pump to exhaust air to form a vacuum, and the water pump casing and suction pipe must be strictly sealed. There must be no air leakage, otherwise a vacuum will not be formed and water will not be sucked up. (3) Since it is impossible to form an absolute vacuum at the impeller inlet, the pump manufacturer's suction height cannot exceed 10 meters. In addition to the loss along the way caused by water flowing through the suction pipeline, the actual allowable installation height (the height of the pump axis from the suction surface) is much smaller than 10 meters. If the installation is too high, no water will be absorbed; in addition, because the atmospheric pressure is lower in mountainous areas than in plains, the installation height of the same water pump in mountainous areas, especially in high mountainous areas, should be lowered, otherwise it cannot suck up water. Water pump manufactureru003c/pu003e
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