What's the difference between a booster pump and a circulating pump?

What's the difference between a booster pump and a circulating pump?

1, the working principle is different.

Circulating pump: circulation refers to the function of the pump, and centrifugation refers to the structure of the pump. The two are completely two concepts. The circulating pump is used to circulate water. For example, the hot water in the water heating pipe is circulated by the circulating pump. Booster pump: Fill the booster pump with liquid before starting the centrifugal pump. The impeller rotates rapidly, and the impeller blades drive the liquid to rotate. The liquid flows to the outer edge of the impeller due to inertia, and the impeller sucks the liquid out of the suction chamber. This force does act on the liquid, making the liquid gain energy and leave the impeller. At this time, the kinetic energy and pressure energy of the liquid increase.

2. Installation position

The booster pump is usually installed on the water inlet pipe. When the original pipeline is cut off for a section, the pump can be connected with the series pipeline. The circulating pump must be installed on the return pipe to increase the system pressure, increase the circulation, and cut off a section of pipe with scissors. The pump can be connected in series on the pipeline.

3. Pressure intensity

The booster pump mainly solves the phenomenon of low water pressure and belongs to low pressure pump. This is mainly determined by the structure of the pump. The booster pump relies on centrifugal force to increase the pressure, while the circulating pump has a higher pressure, which can drive the circulation of the heating system.

4. Product operation

The booster pump is generally automatically controlled, and the switch is automatically controlled by the water flow. As long as there is a water flow switch, it will be opened, otherwise it will be closed. The circulating pump needs manual control and manual start and stop to realize the normal operation and stop of the pump.