Single-stage pump contains the pump shaft, impeller and other parts, it is a relying on impeller rotation to obtain centrifugal force and work equipment, with China's economic development, it is now mainly used in mechanical centrifugal pumps. After years of development, its characteristics are also more and more obvious, and more and more suitable for people's production and life. Single-stage pump next mainly through several aspects to introduce its characteristics: 1, single-stage pump power is usually lower than the multi-stage pump, motor matching and energy saving multi-stage pump has the advantage; 2, single stage pump layout is simple, Repair than the multi-stage pump is good, the price is lower than the multi-stage pump; 3, usually single-stage pump occupies less than the multi-stage pump. 4, the choice of multi-level mainly for economic considerations, any one of the fluid mechanical books have introduced in this regard. Single-stage and multi-stage is the level of contraction of the difference, a tightening level not only refers to the impeller there are stationary vane ring, interstage seal and so on. 5, according to head convex, menu-level pump is still multi-stage pump, multi-stage pump power than single-stage pump, such as single-stage pump and multi-stage pump can be the same, the primary choice of single stage pump. Nowadays the society is an economic society, the products not only need to be applicable, the price needs more benefits. With the continuous development of centrifugal pumps, single-stage pumps also face more and more challenges. If such products lose their competitiveness and creativity, I believe in the near future centrifugal pump sector will no longer exist. To avoid this terrible consequence, more effort and innovation are needed for single-stage pumps. Related articles: Centrifugal pump features Centrifugal pump performance parameters