Selection of drainage pump head
The head of the drainage pump is a very important parameter in the selection process, which is directly related to whether the pump can effectively discharge water. The following is a detailed answer to the head and selection of drainage pumps:
1. Factors affecting the head
Water pump type: Different types of water pumps will have different heads when they are designed and manufactured. For example, the head of a centrifugal pump is generally higher, while the head of a self-priming pump is relatively lower.
Water pump speed: The higher the speed of the water pump, the higher its head will be. However, too high a speed will also cause the noise and vibration of the water pump to increase, and even affect the service life of the water pump.
Inlet pressure and outlet pressure: The higher the inlet pressure, the lower the outlet pressure, and the higher the head of the water pump will increase accordingly. Conversely, the lower the inlet pressure, the higher the outlet pressure, and the lower the head of the water pump will be.
Design and manufacturing quality: The design and manufacturing quality of the water pump will also affect the size of the head. If the design and manufacturing of the water pump are unreasonable, or the quality of the materials used is not up to standard, the head of the water pump will be unstable or reduced.
2. Selection of drainage pump head
Determine actual needs: When choosing a drainage pump, you must first clarify the actual needs, including the amount of water to be discharged, the height of the drainage, and the distance of the drainage. These factors will directly affect the size of the required head.
Consider margin and loss: When determining the head, it should be calculated according to the vertical height of the transmission plus the elbow and horizontal distance, and the loss of the water pipe. Usually, the required head can be obtained by adding 5~10% of the margin. This ensures that the pump can work normally even if there is some loss during actual use.
Match the pump model: Select the appropriate pump model according to the required head and flow rate and other parameters. It is recommended to choose a pump model with high efficiency, low energy consumption, stable operation and other advantages to ensure drainage effect and economic benefits.
