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The influence of excessive or small flow of vertical multistage centrifugal pump on chiller
The influence of excessive or small flow of vertical multistage centrifugal pump on chiller
Excessive or too small flow of the water pump will affect the chiller. In fact, whether the flow of the vertical multistage centrifugal pump is too large or too small, it will have a certain impact on the operation of the chiller. Therefore, the flow of too large or too small will Not a good thing. There are many reasons for the low flow of the vertical multistage centrifugal pump. First of all, when the flow of the pump is too small, you should observe the pump flow and head data marked by the pump to see if the pump is matched incorrectly. It is not surprising that the quality of industrial ice water machines produced by some refrigeration companies may be substandard.
Vertical multistage centrifugal pump
The chiller may have various types of failures. Why does the water pump have too much or too little flow?
In fact, whether the flow of the vertical multi-stage centrifugal pump is too large or too small, it will have a certain impact on the operation of the chiller, so it is not a good thing that the flow is too large or too small.
There are many reasons for the low flow of the vertical multistage centrifugal pump. First, when the flow of the pump is too small, you should observe the pump flow and head data marked by the pump to see if the pump is matched incorrectly. It is not surprising that the quality of industrial ice water machines produced by some refrigeration companies may be substandard.
Secondly, if the flow rate and head of the vertical multi-stage centrifugal pump match the specifications of the water pump required by the chiller, then check whether the pump has been used for too long, whether the pump is excessively worn or damaged, and whether the pipeline is damaged Or the problem of leakage. Of course, it is also possible that the parts have not been used for a long time, the parts are rusted, oxidized, and there may be foreign matter inside the pump (the water pipe may also be blocked by foreign matter).
Some people believe that the reverse rotation of the water pump motor will cause too little flow and engine damage, but it is not true. The reverse rotation of the motor at a certain speed will not cause damage to the vertical multi-stage centrifugal water pump and motor, but excessive flow. Basically, it is not caused by reversal. In the case of reversal, it is difficult for the pump to discharge water.
Finally, if the flow rate of the multi-stage centrifugal water pump is too small, it should be considered whether it is the setting of the chiller system.
The flow rate of the multi-stage centrifugal water pump is too large. In addition to the problem of the setting and operating data of the chiller system, you should also consider whether the head, flow and other parameters of the chiller pump are relatively large and exceed the normal demand range. I believe it is the problem of the chiller manufacturer, that is, the unmatched water pump is used on the chiller.
It is not a good thing for the pump flow to be too small or too large. Many users simply pursue the pump flow, thinking that a large pump flow will make the chiller have a good cooling effect and a large cooling capacity, but it is not the case-the power of the pump will increase the pressure of the chiller. It may also cause many other failures and even reduce the working life of the chiller.

- Capacity:60-33005m³/h
- Head:0.95-30.2bar
- Price:$2200-215000

- Capacity:60-33005m³/h
- Head:0.95-30.2bar
- Price:$2200-215000

- Capacity:5.5-2600m³/h
- Head:1.6-25bar
- Price:$4300-37000

- Capacity:5.5~400m³/h
- Head:0.42-12.5bar
- Price:$560-9800