Pumps Wiki Knowledge

What is the difference between a centrifugal pump and a piston pump?

Centrifugal pumps and piston pumps differ in the following ways:

1. Principle of operation:

    - Centrifugal pump: relies on the rotation of the impeller to generate centrifugal force to transport liquid.
    - Plunger pumps: pump liquids through the reciprocating motion of the plunger.

2. flow characteristics:

    - Centrifugal pumps: the flow rate is relatively stable.
    - Piston pump: Higher flow accuracy can be realized.

3. head range:

    - Centrifugal pumps: Wide range of heads.
    - Piston pumps: usually provide a higher head.

4. Applicable media:

    - Centrifugal pumps: suitable for a variety of liquids, including corrosive and highly viscous liquids.
    - Piston pumps: relatively narrow adaptability to the medium.

5. self-priming capacity:

    - Centrifugal pumps: generally have a good self-priming ability.
    - Piston pumps: poor self-priming ability.

6. Noise level:

    - Centrifugal pumps: relatively quiet operation.
    - Piston pumps: may produce greater noise during operation.

7. Maintenance costs:

    - Centrifugal pumps: relatively simple maintenance, low cost.
    - Piston pumps: complex structure, maintenance costs may be higher.

8. Price:

    - Centrifugal pumps: more economically priced.
    - Piston pumps: usually more expensive.

9. Application scenarios:

    - Centrifugal pumps: widely used in industry, agriculture, municipal and other fields.
    - Piston pumps: commonly used in high-precision, high-head conditions, such as petrochemical industry.

10. Pulse characteristics:

    - Centrifugal pumps: output is relatively smooth, small pulse.
    - Piston pumps: output may have a certain pulse.
What is the difference between a centrifugal pump and a piston pump?

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