What are the classification of centrifugal pumps?
Centrifugal pump products are generally divided according to their structural characteristics, there are a variety of ways to divide, including according to the working pressure, according to the number of working impeller, according to the impeller water way six kinds of classification.
1. According to the working pressure:
Low pressure pump: pressure below 100 meters water column;
Medium pressure pump: the pressure is between 100 and 650 meters of water column;
High pressure pump: pressure higher than 650 meters water column.
2. According to the number of working impellers:
Single-stage pump: that is, there is only one impeller on the pump shaft.
Multi-stage pump: that is, there are two or more impellers on the pump shaft, and the total head of the pump is the sum of the head generated by the n impellers.
3. According to the impeller water way:
Unilateral inlet pump: also called single suction pump, that is, there is only one water inlet on the impeller.
Double side inlet pump: also called double suction pump, that is, there is a water inlet on both sides of the impeller. Its flow rate is twice as large as that of a single-suction pump, which can be approximated as two single-suction pump impellers put together back to back.
4. According to the pump shaft position:
Horizontal pump: the pump shaft is in a horizontal position.
Vertical pump: pump shaft in vertical position.
5. According to the joint joint form of pump casing:
Horizontal medium-open pump: that is, a joint seam is opened on the horizontal plane passing through the axis line.
Vertical joint surface pump: that is, the joint surface is perpendicular to the axis line.
6. According to the way that the water from the impeller is led to the press-out chamber:
Volute pump: After the water comes out of the impeller, it directly enters the pump housing with a spiral shape.
Guide vane pump: After the water comes out of the impeller, it enters the guide vane set outside it, and then enters the next stage or flows into the outlet pipe.
7. According to the transmission medium centrifugal pump according to the transmission medium is different and divided into: clean water pump, oil pump, corrosion resistant pump, etc.
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