The characteristics of multistage pumps are reflected in the head performance. The output head parameter is more than 125 meters, far exceeding most other types of pump products. It is suitable for various pressurized water transportation occasions. In addition to the impeller structure, the other parts of the pump body are almost the same as those of the traditional pipeline pump and centrifugal pump, so the installation and use are equally convenient.
Regarding the characteristics of a multistage pump, it can be understood as a high-lift centrifugal pump. Most centrifugal pumps use a single-stage impeller structure, that is, there is only one set of impellers inside, while multistage pumps are composed of more than two impellers on the internal impeller structure. The impellers are connected in series with each other to improve the head parameters. In the working principle, the pump cavity is also continuously changed to achieve suction, compression, and exhaust to complete the liquid transportation. This structural design allows the multistage pump to have a high head. At the same time, it maintains the characteristics of stable operation of the centrifugal pump and long-term trouble-free operation.
Like centrifugal pumps and pipeline pumps, multistage pumps are driven by motors. At present, most of the internal impellers are composed of 2-13 sets of impellers. The more impellers, the higher the lift. The series of impellers can be specially customized according to the actual pump needs of customers. Simply put, a multistage pump is a centrifugal pump with better performance parameters. Since the cost of making the pump is higher than that of a single-stage pump, there is no need to choose a multistage pump for users who do not have a such high demand for head parameters.
After understanding the characteristics of a multistage pump, you can further have a basic understanding of its structure and composition. The pump is composed of four parts: stator, rotor, bearing, and shaft seal. The stator part is composed of the suction section, middle section, discharge section, and guide vanes. The rotor part is composed of a shaft, an impeller, a balance disc, and a bushing, etc. Its function is to provide balance for the process of transporting liquid; the bearing that plays a role in lubrication is composed of a bearing body, a bearing, and a bearing gland, which needs to be matched during use. Lubricating oil is used to reduce friction; the shaft seal that acts as a seal is composed of a water section and the sealing body, packing, and water retaining ring on the tail cover. The high-quality shaft seal can also effectively prevent liquid leakage and improve transportation safety.
After the above introduction, I believe you have a clear understanding of the characteristics of the multistage pump. At present, the pump is mainly used in urban water systems and various production and water transportation fields. If you have any needs for customized products or selections, you can directly consult us. As a multistage pump supplier in China, SEAKOO produces products with guaranteed quality. If you are interested in the multistage pump, welcome to follow our website. We regularly update pump-related news.
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