Single-stage centrifugal pump and multi-stage centrifugal pump difference

Single-stage centrifugal pumps and multistage centrifugal pumps are often seen in the daily pump products, for these two types of products, we know what is the difference between them? The following is on the single-stage Centrifugal Pump Difference with Multistage Centrifugal Pump introduction. Single-stage centrifugal pump and the difference between multi-stage centrifugal pump Single-stage centrifugal pump, including pump, pump cover, with the output shaft of the motor, pump shaft installed in the pump, bearing, impeller, mechanical seal and mechanical seal gland, The utility model is characterized in that the utility model also comprises a pair of clamp type couplings arranged between an output shaft of a motor and a pump shaft and a guide bearing mounted on a bearing seat to assist in supporting a pump shaft; Rigidly connected with the motor output shaft and the pump shaft, leaving a space distance between the motor output shaft and the pump shaft for facilitating the mechanical seal and the mechanical seal gland assembly and disassembly. It is not necessary to dismantle the motor and pump cover when repairing or replacing the mechanical seal. The multistage centrifugal pump is the flow medium (gas and liquid, can also be a mixture of suspended particles and gas or liquid) from the root of the rotor shaft (inlet), the media rely on high-speed rotating blades to obtain centrifugal force, resulting in a high pressure from the pressure relief port (Outlet) out of the media delivery equipment. Multistage centrifugal pump is to have more than two pumps with the same function together, the fluid channel structure, the performance of the first level of the media pressure relief port and the second level of the import communication, the second level of the media pressure port Connected with the third level of imports, so the series of institutions formed a multi-stage centrifugal pump. The significance of multistage centrifugal pumps is to increase set pressure. Single-stage centrifugal pump is only one impeller pump, the highest lift is only 125 meters; and multistage centrifugal pump refers to the pump with two or more impellers, the maximum head can be more than 125 meters; multi-stage pump in a single stage Pump head needs to be equipped with two motor case, you can increase the number of impeller to match the four motor, which can improve pump life and reduce unit noise, but the multi-stage pump repair relative single-stage pump is a little more difficult . In the actual pump lift needs less than 125 meters, according to pump room area, pump price (multi-stage pump generally higher than the single-stage pump price), and other factors considering the choice of single-stage pump or multi-stage pump. Further reading: China Construction Water Exhibition Pump Valve Tube Fittings Exhibition Water Expo Xiamen Maritime Exhibition Industrial Internet (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Daohui (QQ / WeChat:) http: //mj.liuti .cn / (Service Hotline:)