Booster pump and circulating pump, as the name suggests, have different performance, in the installation position, scope of application, operation and control and so on have their own characteristics, with obvious difference. 1. working principle Circulating pump: circulation refers to the role of the pump, centrifugal refers to the structure of the pump, the two are completely two concepts. The working principle of the circulating pump to water circulating pump is called a circulating pump, such as water heating pipe in the hot water is circulating by the circulating pump up Booster pump: first liquid booster pump is full, and then start the fast rotating impeller, centrifugal pump, impeller blades driven by fluid rotation, the liquid is rotated by the inertia to flow to the outer edge of the impeller, the impeller from the suction chamber into the liquid at the same time, the force on the work of the liquid to liquid, and then the energy out of the impeller, the liquid the kinet...