Pump classification also has a lot of, according to the use of different principles of the distinction between self-priming pump and submersible pump.The submersible pump is the pump body that works in the water, while the self-priming pump is the pump body that is installed on the ground to suck the water in the lower part of the pump body to be transported to higher and further places by the impeller.The advantages and disadvantages of self – priming pump and submersible pump are compared below.
Self – priming pump advantages and disadvantages of self – priming pump:
1. the advantages of the self-priming pump: the main part is located above the water, easy to maintain.The load distribution is more uniform and the mechanical load per unit area is small.The lifting height is small and the height of the pump room is low.Water lubricated bearing is little, also can not use.The total cost of self-priming pump, transmission device and power machine is cheaper.
2. Disadvantages of self-priming pump: large installation area, large machine room area.It needs to be started with water filling, the operation is complicated, and it is not easy to be automated. The sealing requirements of the inlet pipe are strict, so the air cannot be sucked into the pump body. The radial load requires high reliability of the bearing.When the water level of the inlet tank is high, the motor needs to be protected. If the water level of the inlet tank is too low, the effective suction range of the self-priming pump will not be able to absorb the water.
Advantages and disadvantages of submersible pumps:
1. the advantages of the submersible pump: the installation area of the submersible pump is small, the impeller is located in the water, suction performance is better, so can use a higher speed, do not need to start with water, facilitate automation.The use of small volume light weight submersible pump can also be used for easy movement, easy to carry.
2. The main defects of the submersible pump are located below the water surface, and the maintenance is inconvenient. The hoisting height of the crane is high, and the height of the pump room is high.Often moving submersible pump cable is easy to be damaged, the use of mobile need to protect the cable can not be pulled.
To sum up, both self-priming pump and submersible pump have their own advantages and disadvantages, users can only combine their actual working conditions to refer to the difference between self-priming pump and submersible pump to choose a pump product suitable for their own use is a good way
It is recommended to use the QY oil-filled submersible pump, and WQ submersible sewage pump for sewage lifting and conveying.
It is recommended to use ZW non-blocking self-priming sewage pump within 5 meters of the self-priming height of sewage, and ZX self-priming pump is recommended to use self-priming water pump（Advantages of submersible pumps / working principle of submersible pumps）.
Thanks for reading, and inquiries are welcome.
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I like that you mentioned that one of the advantages of a submersible water pump is that its water suction is better, which means that you can produce water much faster. My husband and I are thinking about having a water well installed in our home so we wouldn’t have to pay monthly water bills. If we proceed with our plan, I’ll make sure that we buy a submersible water pump for our new water system to work efficiently. Thanks!