Do centrifugal pumps need to be filtered?
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Is there any case where this is not allowed? Thank you! If it is wastewater (acid, alkali and salt wastewater, which does not contain much mud), will it crystallize and cause solids to be produced? In this case, do I need to install a filter?
To add, waste water must be added for the safety of the pump. But is the wastewater that LZ is talking about being pumped out of a wastewater pool? It doesn’t cost much to add a cover to the entrance and it’s safe, so why not add one :)
Add, of course, add it. After adding the filter, you can prevent solid particles from entering the pump and damaging the pump body. It can also extend the service life of the pump. The installation of the filter is also very cheap and easy to maintain. It is very cost-effective. It is recommended to install a filter.
However, there is no need to add it to some large centrifugal pumps. I called the manufacturer two days ago and said that it is not necessary to add it. This is because some small particles have no effect on some large pumps. On the contrary, because you added a filter, the resistance of the fluid was increased.
The poster himself said that it contains salt, so he must add it. Your pump is not specially designed to transport solid materials. Whether you need to add a pump depends on the nature of your material and the material requirements of the pump itself. But even if you want to add a pump, you must know the model of the filter, otherwise the resistance will be great.
I need to add more. The filter here is broken and the pump impeller has a lot of pits. :L
Well, thank you all for your enthusiastic answers. Now I think it is enough to add a filter. In some cases, a Y-type filter or a barrel-type filter is needed. I don’t know what kind of situation it is added. I would like to ask. Is there any difference between the two? This post was last edited by miey9112 on 2008-1-31 16:48 ]
According to the "Chemical Process Design Manual", determine the model of your filter based on the size of your pipe diameter. You can check
It depends on the situation, there are also cases where there is no filter at all.
No need to add small particles. :lol :lol :lol
The filter unit is designed in front of the centrifugal pump to prevent debris from entering, causing the centrifugal pump to not work properly or even be damaged! Whether to add a filter or a filter screen to the centrifugal pump depends on whether the medium may have foreign matter entering the unit, and also consider whether there are impurity removal measures in the previous process. If there is no centrifugal pump, a filter must be added in front! The system should be analyzed
I agree with the point above. Sometimes the filter in the home is often clogged and the pump cannot supply water, which affects production. This should be considered based on local conditions.
Depending on the medium the centrifugal pump works on, you don’t have to follow the rules rigidly. As long as the liquid is clean and does not cause damage to the pump body, you don’t need to add a filter.； If the liquid is not clean, especially if it contains solid particles and is easy to crystallize, a filter must be added to protect the pump body and the blades of the centrifugal pump.
No filter is needed, just use a slurry pump! There are still many manufacturers of this type of pumps, such as Dalian Danai Pump Industry Company, Domestic 525 Factory, Jiangsu Jinlin Machinery Manufacturing Factory, Jiangsu Yixing Engineering Plastics Equipment Factory, etc.
After adding a filter, it can prevent solid particles from entering the pump and damaging the pump body. It can also extend the service life of the pump. The installation of the filter is also very cheap and easy to maintain. It is very cost-effective. It is recommended to install a filter.
If it is wastewater (acid, alkali and salt wastewater, which does not contain much mud), will it crystallize and cause solids to be produced? In this case, do I need to install a filter? In this case, two filters must be added and a blue filter must be used if the flow rate is large.
Media containing more solid particles may clog the filter screen and cause excessive inlet pressure drop. Setting a pressure measuring point can determine whether the pump is operating abnormally due to clogging of the filter screen.
It needs to be added. Otherwise the pump may be easily damaged.
Generally, if the imported bottom valve is equipped with a screen, it does not need to be added if the screen has already met the requirements.
I totally agree with what the 3rd floor said, "" Add it, of course you have to add it. After adding the filter, you can prevent solid particles from entering the pump and damaging the pump body, and it can also extend the service life of the pump. The cost of installing the filter is also very cheap, and the maintenance is also very convenient. It is a very cost-effective thing. It is recommended to install the filter "": lol