| Main form (1) | Movable pump | |||
| Introduction | This type of pump is mainly distinguished by the flow direction of the liquid. | |||
| classification | Axial flow | Mixed flow | Centrifugal flow | Regenerative flow |
| Description | The liquid flow direction is parallel to the shaft, and its head is produced by the force of the blades. | The mixed-flow type can discharge liquid in the radial and axial directions at the same time in the scroll-type casing, and its head is a combination of the discharge process. | Also known as a moving impeller pump, the impeller is installed on the rotating shaft, and the liquid is automatically sucked into the moving impeller from the center of the impeller under high-speed rotation, and is thrown out under the influence of centrifugal force. | The main characteristic of the regenerative type is low capacity and high head. |
| Main form (2) | Water discharge pump | |||
| Introduction | The main feature of this design is that a certain amount of liquid will be discharged for each revolution and each stroke. | |||
| classification | Reciprocating | Rotary | ||
| Description | The cylinder is driven by steam or electricity to produce reciprocating operation, producing the action of sucking in and discharging liquid. | The operation method is similar to the reciprocating type, usually gears, blades or spiral rotors are used. After the liquid is sucked in at high speed, a certain amount of liquid is discharged at each revolution. The operation method is relatively stable and does not have significant pressure changes. . | ||