Before distinguishing self-priming pump and booster pump, the definition of self-priming pump and booster pump should be repeated.
1 self priming pump
It means that after filling water for the first time, the self-priming pump can be started without refilling water. Whether the self-priming pump is self-priming depends on whether the impeller is immersed in water after shutdown. The self-priming pump can ensure that the impeller can be immersed in water after each shutdown due to its common pump cavity structure;
2 booster pump
It generally refers to the general name of the pump that can supply the liquid in the pipeline with rated pressure, but does not refer to a certain type of pump. The booster pump can be pipeline pump, centrifugal pump, sewage pump, self-priming pump, multi-stage pump and other types of pumps. If you want to let the non self priming booster pump to achieve self-priming effect (the pump is located above the pool), the bottom valve can be installed at the suction port of the pump.
When to choose self-priming booster pump is better?
In the following conditions, the booster pump with self-priming structure shall be selected as far as possible to improve the usability or safety:
1. The pump is located above the water tank (liquid equipment);
2. The extracted liquid is poisonous or has peculiar smell;
3. High temperature (too high temperature will affect the self suction height).
What is the difference between booster pump and self-priming pump?
At the top of the list, two pumps are able to pressurize. One is that the water level in the center of the pipeline is higher than the pump body (booster pump), and the other is that the water level in the center of the pipeline is lower than the pump body (self-priming pump). It is better not to install the self-priming pump directly on the water pipeline, which may break the glass of the water meter.
Second, if the water does not cut off the situation can make booster pump, if often cut off the flow, it is necessary to prepare a container (pool, water tank, etc.), the container can be installed with drainage pipe can also make booster pump, can not install drainage pipe can only install self-priming pump.