Centrifugal pump classification

Centrifugal pump classification

Industrial self-priming centrifugal pumps are a product of vane type pumps. Since this kind of pump mainly transports liquid by the centrifugal force generated when one or several impellers rotate, it is called a centrifugal pump.

Centrifugal pump classification is generally divided into the following methods:

(1) According to the number of impellers and the number of stages 1) Single-stage centrifugal pumps - there is only one impeller in the pump;

2) Multi-stage centrifugal pump - There are multiple impellers in the pump. One impeller is one stage. The more stages, the higher the lift.

(2) According to the impeller's suction liquid method 1) Single-suction centrifugal pump - the liquid is suctioned from one side of the impeller, which is both a single-stage centrifugal pump and a single-suction centrifugal pump;

Double Suction Centrifugal Pumps - Both sides of the impeller draw in liquid at the same time (3) In the form of a guide vane mechanism 1) Volute pump - A centrifugal pump like a snail shell.

2) Guide vane pump - The pump with several fixed vanes on the periphery of the impeller is a vane type pump. In the early days, this pump was called a turbine pump. Multi-stage pumps are mostly in this form.

(4) According to the type of pump joints 1) Pumps with horizontal seams (medium open type) - Pumps with pump joints on the horizontal plane through the centerline of the pump shaft.

2) Pump with vertical seam A pump with a pump cover mounted on the face perpendicular to the centerline of the pump shaft.

Single-stage pumps and segmented multi-stage pumps often use this form.

(5) according to the nature and use of liquid transport centrifugal pump, industrial self-priming centrifugal pump, centrifugal well pump, centrifugal oil pump, condensate pump, boiler feed pump and other special centrifugal pumps.

Industrial self-priming centrifugal pump classification is generally as described above. However, for a specific type of pump, it should be in accordance with national standards, industry standards and the unified name of China Mechanical and Electrical Products Directory. E.g. IS type single-stage single-suction cantilever centrifugal pump, the unified name is: IS type single-stage single-suction centrifugal pump.

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