Centrifugal pump classification

Centrifugal pump classification: First, according to the number of working impeller classification 1, single-stage pump: that is, only one impeller on the shaft. 2, multi-stage pump: that is, there are two or more impellers on the pump shaft, then the total pump head is the sum of the lift produced by n impellers. Second, according to the classification of working pressure 1, low-pressure valve: pressure less than 100 meters of water column; 2, medium-pressure pump: pressure in the range of 100-650 meters of water; 3, high pressure pump: pressure higher than 650 meters of water column. Third, according to the classification of the impeller water way 1, one side of the water pump: also known as single suction pump, that is, only one inlet on the impeller; 2, bilateral water pump: also known as double suction pump, Side of a water inlet. Its flow rate is double that of a single suction pump, which can be approximated as two single-suction pump impellers placed back-to-back together. Fourth, according to the pump shell combined with the type of seam 1, the level of open pump: that is, through the axis of the horizontal plane with a joint seam. 2, the vertical joint pump: that is, the junction plane and the axis of the vertical. Fifth, according to the pump shaft position to classify 1, horizontal pump: pump shaft is located in horizontal position. 2, vertical pump: pump shaft is located in the vertical position. Six, according to the impeller out of the way to the pressure chamber out of the classification 1, spiral pump: water from the impeller, directly into the shape of a spiral pump shell. 2, guide vane pump: water from the impeller out into the guide vane set outside it, and then into the next level or into the outlet pipe.

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